8th Pacific Rim Conference on Rheology
Mathematics & Geography Buildings
University of British Columbia, Point Grey Campus

The 8th Pacific Rim Conference on Rheology was held in Vancouver, on the Point Grey campus of the University of British Columbia (UBC)*, May 15 – 19, 2023.
For more information about the event, please visit prcr2023.ca
Click here to download the program at a glance
CONFERENCE TRACKS:
General Symposia
G01. Polymer Solutions and Melts
G02. Industrial Rheology in Polymer Processing
G03. Blends, Composites and Nanocomposites
G04. Suspensions and Colloids
G05. Emulsions and Foams
G06. Self-assembly and Flow-induced Systems and Gels
G07. Biomaterials and Biological Systems
G10. Non-Newtonian Fluid Mechanics and Stability
G12. Rheology in the Oil and Gas Industry
G13. Rheology in the Mining Industry
Special Symposia
(By invitation only)
S02. Hiroshi Watanabe – Honorary Symposium
Poster Session
P01. Posters on any topic of rheological interest
*UBC Point Grey Campus is on the unceded Traditional Territory of the xʷməθkʷəy̓əm (Musqueam) People
Thank you to our sponsors!






-
-
Social Events: Casual Evening and Registrations The Nest, Level 4 (The Gallery - Patio & Lounge)
The Nest, Level 4
The Gallery - Patio & Lounge
6133 University Blvd. UBC Campus Vancouver BC-
18:00
Registration with dinner and drinks at The Gallery
Conference registration will open in the Gallery Lounge & Patio (6133 University Blvd. UBC Campus) on Monday May 15 at 6:00 pm, which is a short stroll away from your accommodation. There will be dinner and drinks offered in the lounge up until around 10pm, with a nice patio to sit out on and reconnect with friends.
-
18:00
-
-
-
Opening Remarks Room 100 (Geography Building)
Room 100
Geography Building
1984 West Mall Vancouver, BC V6T 1Z4Ian Frigaard and Savvas Hatzikiriakos
Conveners: Ian Frigaard (University of British Colubia), Savvas Hatzikiriakos (The University of British Columbia) -
Plenary Presentations: Simon A. Rogers, University of Illinois at Urbana-Champaign Room 100 (Geography Building)
Room 100
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Dimitris Vlassopoulos (FORTH and University of Crete)-
1
What we learn about yielding from recovery rheology
Abstract:
Yield stress fluids are often thought about in a piecewise manner as behaving like elastic solids below the yield stress and like generalized Newtonian liquids above it. Accurate determination of the yield stress is therefore crucial to understanding and predicting the behaviour of yield stress fluids such as inks for 3D printing, foods and cosmetics, muds and soils, and many industrially and biologically relevant materials. Despite the centrality of the yield stress concept, there exist multiple methods by which researchers determine ‘the’ yield stress, and they can provide values that are orders of magnitude apart. Such discrepancies have even led to some asking the question of whether the yield stress exists at all.
In this work we study a series of yield stress fluids using recovery rheology concepts, where strain is decomposed into recoverable and unrecoverable components, and present evidence that yielding takes place gradually over a wider range of stresses than previously thought. It is shown that the overshoot in the loss modulus that has often been used as a measure of yielding is due to the acquisition of unrecoverable strain. It’s shown how these measurements led to the development of a model that describes spatially heterogeneous yielding in a mean-field manner and how accurately this model predicts the rheology of simple yield stress fluids.
In more complex materials, responses are observed with two overshoots in the loss modulus, a phenomenon often referred to as “double yielding”. It is shown that these dual features are really a combination of two distinct processes, only one if which is yielding. New protocols inspired by recovery concepts are also used to show that small amounts of flow occur below the yield stress determined by a Herschel-Bulkley fit to steady-shear flow measurements in a predictable manner as a function of stress amplitude, angular frequency, and applied stress phase angle. Relations are presented that show how these measures can be used to determine the contribution to the loss modulus from unrecoverable plastic deformations, providing some of the same information as the full iteratively performed recovery tests, but in a fraction of the time.
Recovery rheology therefore adds nuance to our understanding of yield stress fluids by highlighting the continuous nature of yielding and providing a general set of methods by which reliable and consistent yielding information can be rapidly obtained.Bio: Simon A. Rogers is an Associate Professor in the Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, USA. Dr. Rogers uses experimental and computational tools to understand and model advanced colloidal, polymeric, and self-assembled materials. He received his BSc in 2001, BSc (Hons) in 2002; and his PhD from Victoria University of Wellington in New Zealand in 2011. He completed his postdoctoral research at the Foundation for Research and Technology in Crete, the Jülich Research Center in Germany, and the Center for Neutron Research at the University of Delaware.
Speaker: Simon Rogers (University of Illinois at Urbana-Champaign)
-
1
-
10:00
Coffee Break Lounge (Mathematics Building)
Lounge
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2 -
Biomaterials and Biological Systems Room 100 (Geography Building)
Room 100
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Yaman Boluk (University of Alberta)-
2
Poroelastic Modelling Reveals The Cooperation Between Two Mechanisms For AlbuminuriaSpeaker: Zelai Xu (University of British Columbia)
-
3
Hydrodynamics and rheology of fluctuating, semiflexible, inextensible, and slender filaments in Stokes flowSpeaker: Prof. Aleksandar Donev (Courant Institute, New York University)
-
4
TRIBOLOGY AND RHEOLOGY OF HYALURONIC ACID BASED CELLULOSE NANOCRYSTAL SUSPENSIONSSpeaker: Akshai Bose
-
5
Self-organized cable formation and force transmission in an active vertex model for biological tissuesSpeaker: Mingfeng Qiu (Ecole Normale Supérieure)
-
11:50
No talk scheduled
-
2
-
Blends, Composites and Nanocomposites Room 212 (Geography Building)
Room 212
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Reghan Hill (McGill University)-
6
STUDY OF THE STABILITY OF ELECTRICAL AND RHEOLOGICAL PROPERTIES OF ELECTRICALLY CONDUCTIVE COMPOSITES WITH CO-CONTINUOUS MORPHOLOGYSpeaker: Ms Daria Strugova (École de technologie supérieure, Montréal, Québec H3C 1K3, Canada)
-
7
Should we keep choosing nano-sized particles to kinetically stabilize co-continuous blends?Speaker: Rajas Shah (University of Calgary)
-
8
RHEOLOGICAL AND CONDUCTIVE PROPERTIES OF INJECTION- AND COMPRESSION-MOLDED CARBON NANOTUBE POLYMER COMPOSITESSpeaker: Lidija Slemenik Perše
-
11:30
No talk scheduled
-
6
-
Suspensions and Colloids Room 147 (Geography Building)
Room 147
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Sarah Hormozi (Cornell University)-
9
Non-Brownian suspensions in pressure-driven flow: numerical simulations with frame-invariant sub-grid correctionsSpeaker: Dr Michel Orsi (Levich Institute and Department of Chemical Engineering, CUNY City College of New York, New York, NY 10031, USA)
-
10
FINITE SYSTEM SIZE CORRECTION IN MICRORHEOLOGICAL ANALYSIS UNDER PERIODIC BOUNDARY CONDITIONS : A DIRECT NUMERICAL SIMULATION APPROACHSpeaker: Prof. Yasuya Nakayama (Kyushu University)
-
11
Lubrication force between two approaching cylinders in a Bingham fluidSpeaker: Anthony Wachs (University of British Columbia)
-
12
Cross Flow Filtration of Viscoplastic Suspensions, a Robust Mathematical ModelSpeaker: Mahdi Izadi
-
13
IMPARTING EXTENSIBILITY TO JAMMED COLLOIDAL INKS FOR DIRECT-INK-WRITING PRINTABILITYSpeaker: Dr Chaimongkol Saengow (University of Illinois Urbana-Champaign)
-
9
-
Rheology in the Oil and Gas Industry Room 200 (Geography Building)
Room 200
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Paulo de Souza Mendes (PUC-Rio)-
14
KEYNOTE: Assessment of Critical Conditions Required for Effective Hole Cleaning in Horizontal Wells - Effects of Fluid Rheological Properties and Near Wall Turbulence on the Particle Removal From Bed DepositsSpeaker: Dr Ergun Kuru (University of Alberta)
-
15
Primary cementing of horizontal wells: laminar displacement flows in obstructed eccentric annuliSpeaker: Ms Marzieh Alishahi (University of British Columbia)
-
16
Cementing displacement flows of shear-thinning fluids in horizontal wells, with and without casing rotationSpeaker: Dr Alondra Renteria (UBC, Mechanical Engineering)
-
17
Displacement flows of shear thinning fluids in a vertical annulusSpeaker: Ruizi Zhang (University of British Columbia)
-
14
-
12:10
Lunch Lounge (Mathematics Building)
Lounge
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2 -
Plenary Presentations: Nicky Eshtiaghi, RMIT University Room 100 (Mathematics Building)
Room 100
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2Convener: Paulo de Souza Mendes (PUC-Rio)-
18
SLUDGE RHEOLOGY AND ITS APPLICATIONS IN SLUDGE TREATMENT PROCESSES
Abstract:
Sludge rheology is important for the design and operation of sludge treatment processes in terms of process optimisation and maintenance cost reduction. Sludge rheology has a significant impact on the performance of pumps, anaerobic digesters, dewaterability equipment, mixers, and heat exchangers.
A large portion of the total energy consumption in any sludge treatment plants is used for pumping sludge within the treatment processes. The efficient operation of sludge pumps requires an accurate calculation of friction losses for which sludge rheological parameters is an important parameter. Rheological parameters change as composition changes due to season, origin and treatment process. Furthermore, the type of selected rheological model and data fitting process impact on the pressure drop calculation. A validated pressure drops calculation toolkit was developed with up to 10% errors against actual data collected both at industrial scale and a pilot plant of sludge pumping system in a range of solid concentrations of sludge.Anaerobic digesters are used to treat sludge and produce biogas. The rheology of the sludge can affect the digestion process, as it can impact the ability of microorganisms to break down the organic matter in the sludge. Sludge with high viscosity may have a lower biodegradability, resulting in a longer retention time within the digester, which can increase the size and cost of the digester. Additionally, the rheology of the sludge can impact the efficiency of the mixing within the digester, affecting the biogas production and overall treatment performance. The impact of the extent of digestion in terms of the volatile solids destruction on rheological properties in semi-continuous pilot digesters is also presented. Experimental results from this study indicate that higher volatile solids destruction leads to increased difficulty to flow and dewater. Since rheological behaviour is interlinked with chemical organic content (COD) of sludge, On-line rheometers can be used to monitor this process performance indicator (COD) rather than conducting offline time consuming chemical tests.
There is still much to be learned about the complex interactions between different components in sludge, and that new measurement techniques will be needed to improve our understanding of sludge rheology and its applications in sludge treatment processes.Bio:
Nicky ESHTIAGHI is a Professor of Chemical Engineering at RMIT University, an Engineers Australia (EA) Fellow and Chartered Engineer, a Fellow of the Higher Education Academy (FHEA, UK), and an Editor in Chemical Engineering Research and Design Journal (Q1, Elsevier). She was the President of Australian Society of Rheology (2020-2022). She leads Sustainable Waste Processing Laboratories which investigates the flow behaviour of solid residue (sludge) from wastewater treatment plants with the aim of optimizing the energy efficiency of processes in sludge treatment lines. She has extensive research experience in process optimisation, biomass pretreatment, anaerobic digestion, biomass to hydrochar and biofuels conversion technology, and circular economy.Speaker: Nicky Eshtiaghi (RMIT University)
-
18
-
Biomaterials and Biological Systems Room 104 (Mathematics Building)
Room 104
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2Convener: Dana Grecov (University of British Columbia)-
19
KEYNOTE: Bioprinting of collagen hydrogels in supported gel environmentSpeaker: Prof. Yaman Boluk (University of Alberta)
-
20
EFECTS OF GELATION CONCENTRATION ON CYCLIC DEFORMATION BEHAVIOR OF POLYSACCHARIDE HYDROGELSSpeaker: Jun-ichi Horinaka
-
21
TENDON FASCICLE-INSPIRED COLLAGEN MULTIFILAMENT BUNDLE PRODUCED BY MULTI-PIN CONTACT DRAWING OF AN AQUEOUS COLLAGEN-POLYETHYLENE OXIDE SOLUTIONSpeaker: Dr Hessameddin Yaghoobi (Department of Physics & Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada and School of Biomedical Engineering, Dalhousie University, Halifax, Nova Scotia, B3H 4R2, Canada)
-
22
EFFECT OF HOMOGENIZATION OF RAW MILK ON THE PHYSICAL PROPERTIES OF AGED CHEESESpeaker: Prof. Isamu Kaneda (Rakuno Gakuen University)
-
19
-
Blends, Composites and Nanocomposites Room 203 (Mathematics Building)
Room 203
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2Convener: Denis Rodrigue-
23
Formulating adhesives with aminated polyolefins for low surface energy substrateSpeaker: Ziyue Zhang (The University of British Columbia)
-
24
CONFORMATIONAL RELAXATION OF STYRENE-BUTADIENE RUBBERS HAVING A DIFFERENT MICROSTRUCTURE BUT THE SAME COMPOSITION AT HYDROPHILIC AND HYDROPHOBIC INTERFACESpeaker: Mr Hidenobu Taneda (Center for Polymer Interface and Molecular Adhesion Science, Kyushu Univeristy)
-
25
SHAPE MEMORY AND MECHANO-RHEOLOGICAL PROPERTIES OF AMINE CONTAINING POLYETHYLENE/POLYCAPROLACTONE BLENDSpeaker: Jan Gustowski (University of British Columbia)
-
26
Rheological Evaluation of Polyhydroxyalkanoates (PHAs) through Constitutive Equation ModellingSpeaker: Ehsan Behzadfar (Toronto Metropolitan University)
-
27
Development of Biodegradable and Antiviral Surgical Face Masks from Poly(lactic acid) and Poly(dimethyl siloxane)-based PolyhydroxyurethanesSpeaker: Dr Georges Younes (Polytechnique de Montréal)
-
23
-
Suspensions and Colloids Room 147 (Geography Building)
Room 147
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Anthony Wachs (University of British Columbia)-
28
KEYNOTE: The Role of Rolling Resistance in the Rheology of Wizarding Quidditch Ball SuspensionsSpeaker: Sarah Hormozi (Cornell University)
-
29
Adjuvanted silica suspensions: from particles contact properties to rheologySpeaker: Xavier Chateau (ENPC, France)
-
30
Rheology of High Performace Cement-Based Materials For Use in Additive ManufacturingSpeaker: Nicos Martys (National Institute of Standards and Technology)
-
31
EXPLORING THE INTERPLAY BETWEEN INTERPARTICLE FORCES, RHEOLOGY, AND TRIBOLOGY IN NANOCLAY-BASED NANOLUBRICANTSSpeaker: Leonardo Martín Alarcón (University of Calgary)
-
28
-
Rheology in the Oil and Gas Industry Room 200 (Geography Building)
Room 200
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Ida Karimfazli (Department of Mechanical, Industrial and Aerospace Engineering, Concordia University, 1515 St. Catherine W., Montreal, QC, H3G 2W1, Canada)-
32
WALL-SLIP EFFECTS ON FLOW RESTART IN A PLUGGED WAXY CRUDE OIL PIPELINESpeaker: Dr Aniruddha Sanyal (National Institute of Technology Calicut)
-
33
FLOW RESTART MECHANISM IN A MULTIPHASE GELLED PIPELINESpeaker: Dr Lomesh Tikariha (IIT Bombay)
-
14:40
No talk scheduled
-
32
-
15:40
Coffee Break Lounge (Mathematics Building)
Lounge
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2 -
Biomaterials and Biological Systems Room 104 (Mathematics Building)
Room 104
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2Convener: Nicky Eshtiaghi (RMIT University)-
34
Reversal motion of E-coli bacteria in nematic liquid crystalsSpeaker: Dr Martyna Goral (Department of Mathematics, UBC, Vancouver, Canada and PMMH lab, ESPCI-PSL Paris, France)
-
35
DIFFUSION OF LIPID NANOPARTICLES THROUGH AIRWAY MUCUSSpeaker: Mohammad Reza Rokhforouz (UBC Chemical and Biological Engineering)
-
36
Oscillatory microfluidic thromboelastograph (micro-TEG) analysis of whole blood coagulation and fibrinolysisSpeaker: Prof. SeHyun SHIN (Korea University)
-
37
SCALE-DEPENDENT RHEOLOGY OF SYNOVIAL FLUID LUBRICATING MACROMOLECULESSpeaker: Leonardo Martín Alarcón (University of Calgary)
-
38
RHEOLOGY OF CORN STOVER SLURRIES UNDERGOING DILUTE-ACID PRETREATMENTSpeaker: Prof. Joseph Samaniuk (Colorado School of Mines)
-
34
-
Blends, Composites and Nanocomposites Room 203 (Mathematics Building)
Room 203
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2Convener: Savvas Hatzikiriakos (The University of British Columbia)- 39
-
40
How morphological and rheological properties of PLA/MWCNT nanocomposites are affected by molecular weight, stereo configuration of PLA, and processingSpeaker: Prof. Pierre Carreau (Center for High Performance Polymer and Composite systems (CREPEC), Department of Chemical Engineering, Polytechnique Montréal, Montreal, Québec, H3T 1J4, Canada)
-
41
Compatibilized polylactide/polyamide 11 (PLA/PA11) blends containing multiwall carbon nanotubes: morphology, rheology, electrical and mechanical propertiesSpeaker: Ms Zeinab Mousavi (Centre for High performance Polymer and Composite Systems (CREPEC), Chemical Engineering Department, Polytechnique Montreal, Montreal, Quebec H3T 1J4, Canada)
-
42
WHY IS THE PYANE EFFECT MISSING HIGHER HARMONICS?Speaker: Prof. Xiaorong Wang (Tongji University)
-
43
EFFECT OF INORGANIC FILLER ON RHEOLOGICAL PROPERTIES AND MORPHOLOGY OF POLYLACTIC ACID(PLA)/LOW-DENSITY POLYETHYLENE(LDPE) BLENDSSpeaker: Min Chan Kim (Pusan National University (Republic of Korea))
-
Suspensions and Colloids Room 147 (Geography Building)
Room 147
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Gwynn Elfring (University of British Columbia)-
44
KEYNOTE: Rheology of active colloids: motility-induced shear-thickeningSpeaker: Hartmut Löwen
-
45
DENSITAXIS OF SWIMMING MICROORGANISMSSpeaker: Vaseem Shaik (University of British Columbia)
-
46
Hydrodynamic interactions of active matter near boundariesSpeaker: Seyed Arman Abtahi
-
47
DYNAMICS OF 2D COLLOIDAL CRYSTALS IN THE PRESENCE OF LOCALIZED INTERNAL STRESSES CREATED BY ACTIVE PARTICLESSpeaker: Dr Jacob John (Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Canada)
-
44
-
Rheology in the Oil and Gas Industry Room 200 (Geography Building)
Room 200
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Ergun Kuru (University of Alberta)-
48
KEYNOTE: Normal stresses at the yielding pointSpeaker: Prof. Paulo de Souza Mendes (PUC-Rio)
-
49
Continuous Monitoring of Yield Stress and Solid Fraction of a Solid Suspension Using a Microfluidic Yield RheometerSpeaker: Mr Durgesh Kavishvar (University of Toronto)
-
50
Hercshel-Bulkley parameter evaluation of oil-based drilling fluidsSpeaker: Prof. Arild Saasen (University of Stavanger)
-
51
An algebraic thixotropic elasto-viscoplastic model for describing pre-yielding and post-yielding behaviourSpeaker: Lalit Kumar (Indian institute of Technology Bombay)
-
48
-
Poster Session: Welcome Reception & Poster Session The Sage (University Centre)
The Sage
University Centre
6331 Crescent Rd, Vancouver, BC V6T 1Z1Poster presentations
-
52
Active Particles Crossing Sharp Viscosity GradientsSpeaker: Jiahao Gong
-
53
ADVANCES IN CONE-PLATE RHEOMETERS FOR BUSY LABSSpeaker: David Moonay
-
54
Dynamical behavior of an aqueous foam in a liquid-filled Hele-Shaw cellSpeaker: Fatemeh Bararpour
-
55
EFFECT OF THE TEMPERATURE ON THE RHEOLOGICAL BEHAVIORS OF LITHIUM-ION BATTERIES ANODE SLURRYSpeaker: 예슬 김 (Sookmyung Women's University)
-
56
Rheological differences in anode slurries caused by shape difference between natural and synthetic graphiteSpeaker: Yeeun Kim (Sookmyung Women’s University)
-
57
TWO-STEP YIELDING BEHAVIOR OF CONCENTRATED LITHIUM-ION BATTERY ANODE SLURRYSpeaker: Jun Dong Park (Sookmyung Women's University)
-
58
JAMMING MECHANISMS OF DILUTE FIBRE SUSPENSIONS UNDER DEAD-END AND CROSS-FLOW CONDITIONSSpeaker: Mr Miguel Esteban Villalba Chehab (The University of British Columbia)
-
59
Diagnosing the state of the battery slurries using a machine learning techniqueSpeaker: Seunghoon Kang
-
60
Rheology and Drag Reduction and Engineering Applications of Novel Oil-phase Suspended Polyacrylamide Slicker water Fracturing FluidsSpeaker: Mr Yongjun Lu (Petrochina Research Institute of Exploration and Development)
-
61
Capillary imbibition in a diverging flexible channelSpeaker: Mouad Boudina (University of British Columbia)
-
62
Deformational Vorticity in Constitutive Equations: The Co-Rigid Rotational Maxwell ModelSpeaker: Cody Mischel
-
63
DEVELOPMENT OF EXTENSIONAL RHEOMETER USING PARALLEL DISK RINGSpeaker: Mr Yukihiro Mineyama (National Institute of Technology, Tsuyama College, Advanced Mechanical and Control System Engineering Course)
-
64
DYNAMIC VISCOELASTICITY AND SPINNING BEHAVIOR OF AN ORGANOGELATOR, PMDA-R, DISSOLVED IN VARIOUS OILSSpeaker: Aya Kaide (Yamaguchi University)
-
65
Effect of Asphaltene on the Rheological Properties of BitumenSpeaker: Jourdain Piette (UBC)
-
66
EFFECT OF CARBON NANOTUBES (CNTs) DISPERSITY IN AG/POLYDIMETHYLSILOXAN (PDMS) COMPOSITE CONDUCTORSSpeaker: EunHui Jeong
-
67
EFFECTS OF RELAXATION TIME OF POLYMER SOLUTIONS ON THE SPATIO-TEMPORAL FLUCTUATION IN A TWO-DIMENSIONAL FLOWSpeaker: Kengo Fukushima
-
68
EVALUATION OF THE LIQUID HOLDUP IN A STRATIFIED GAS-LIQUID INCLINED PIPELINE ACCORDING TO THE HERSCHEL–BULKLEY FLUID MODELSpeaker: Prof. Jingyu Xu (Institute of Mechanics, Chinese Academy of Science)
-
69
Gelatinization of Individual Starch GranulesSpeaker: Lanxin Mo (University of British Columbia)
-
70
IMPACT OF EXTENT OF DIGESTION ON THE SHEAR RHEOLOGICAL BEHAVIOUR OF ANAEROBIC DIGESTED SLUDGESpeaker: Prof. Nicky Eshtiaghi (RMIT University, Australia)
-
71
INFLUENCE OF VISCOSITY HIERARCHY ON DENSITY-UNSTABLE FLUID-FLUID DISPLACEMENT IN VERTICAL CONCENTRIC ANNULISpeaker: Maryam Ghorbani (PhD student)
-
72
Measuring Transient Extensional Viscosity using Filament Stretching on an ARES G2 RheometerSpeaker: Tianhong Chen (TA Instruments - Waters LLC)
-
73
Microrheology of Polyelectrolyte Solutions in the Semidilute Entangled RegimeSpeaker: Atsushi Matsumoto (University of Fukui)
-
74
OPTIMIZATION OF THE DRAG-REDUCING EFFECT BY CONTROLLING THE PREPARATION CONDITIONS OF ADDITIVESSpeaker: Takashi Saeki (Yamaguchi University)
- 75
-
76
RHEOLOGICAL METHOD TO INVESTIGATE PSEUDOLAYER COMPRESSION ELASTIC CONSTANT AND THE DYNAMICS OF THE TWIST-BEND NEMATIC LIQUID CRYSTALSpeaker: mylapalli praveen kumar (University of Hyderabad)
-
77
Rheology and Self-Assembly of Carboxylated Cellulose NanocrystalsSpeaker: Ms Madeleine Hallman (Department of Chemical and Biological Engineering, University of British Columbia)
-
52
-
-
-
Plenary Presentations: Special Symposium Plenary Session: Hiroshi Watanabe, Kyoto University Room 100 (Geography Building)
Room 100
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Ralph Colby-
78
COMPARISON OF VISCOELASTIC AND DIELECTRIC PROPERTIES OF TYPE-A CHAIN: EXPERIMENTAL ATTEMPT FOR DEEPER UNDERSTANDING OF POLYMER RHEOLOGY
Abstract:
Viscoelastic and dielectric properties of type-A chains differently average the same chain
dynamics, so that comparison of those properties resolves some details of this dynamics in a purely experimental way. Some examples of this comparison are presented in the talk.Bio:
Hiroshi Watanabe started his academic career as Assistant Professor in 1983 in Osaka University, Japan. He moved to Institute for Chemical Research, Kyoto University, Japan, as Associate Professor in 1994, and was promoted to Professor in 2003. In 2022, he retired from Kyoto University but is still active as Emeritus Professor of Kyoto University and Visiting Professor of Changchun Institute of Applied Chemistry, Chinese Academy of Sciences. His research interest has been placed on dynamics and rheology of various softmatters that include polymers, suspensions, and emulsions. He combined several experimental methods, for example, rheological, dielectric, and small angle scattering methods, to reveal physical factors underlying the dynamic behavior of softmatters, for example, the entanglement loosening process of polymers wherein the length and time scales can be consistently coarse-grained. Professor Watanabe has received many awards for his outstanding contributions to the science of Rheology including the Bingham medal of the Society of Rheology in 2015.Speaker: Hiroshi Watanabe
-
78
-
10:00
Coffee Break Lounge (Mathematics Building)
Lounge
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2 -
Blends, Composites and Nanocomposites Room 212 (Geography Building)
Room 212
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Xiaorong Wang-
79
KEYNOTE: Role of network compressibility on the complex conductivity of structured polyelectrolyte hydrogelsSpeaker: Reghan Hill (McGill University)
-
80
ULTRASOUND EFFECT ON DISPERSION AND DISTRIBUTION OF GRAPHITIC MATERIALS INSIDE DIFFERENT PDMSSpeaker: Nicole Demarquette (École de technologie supérieure, Montréal, Québec H3C 1K3, Canada)
-
81
FLUID COMPOSITES AS ALTERNATIVES TO SOLID ELECTRICAL COMPONENTSSpeaker: Dr Lola Gonzalez-Garcia (INM-Leibniz Institute for New Materials)
-
82
THE RHEOLOGICAL PROPERTIES OF HOT MELT ADHESIVES DOPED WITH CARBON NANOTUBESSpeaker: Dr Paulina Latko-Durałek (Warsaw University of Technology)
-
79
-
Rheology in the Oil and Gas Industry Room 200 (Geography Building)
Room 200
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Masoud Daneshi (Department of Mathematics, University of British Columbia)-
83
DRIFT FLUX MODELING OF GAS RELEASE IN OIL SAND TAILING PONDSSpeaker: Omid Hajieghrary (University of British Columbia)
-
84
RHEOLOGY OF FRESH CEMENT PASTE AS AFFECTED BY CELLULOSE NANOFIBRES AND SUPERPLASTICIZERSpeaker: Dr VIVEK BINDIGANAVILE (UNIVERSITY OF ALBERTA)
-
85
DEFYING GRAVITY: THE FLUID MECHANICS OF OFF-BOTTOM PLUG PLACEMENTSpeaker: Ida Karimfazli (Department of Mechanical, Industrial and Aerospace Engineering, Concordia University, 1515 St. Catherine W., Montreal, QC, H3G 2W1, Canada)
-
86
RHEOLOGICAL BEHAVIOR OF MATURE FINE TAILINGSSpeaker: Mr Amir Malmir (The University of British Columbia)
-
11:50
No talk scheduled
-
83
-
Hiroshi Watanabe – Honorary Symposium Room 100 (Geography Building)
Room 100
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Yuichi Masubuchi (Nagoya University)-
87
KEYNOTE: RESPONSE OF BLOCK COPOLYMER ELECTROLYTES TO IONIC CURRENTSpeaker: Nitash P. BALSARA (UC Berkeley)
-
88
GLASS TRANSITION AND ENTANGLEMENT IN SEMIFLEXIBLE CONJUGATED POLYMER MELTSSpeaker: Ralph Colby
-
89
Nano Rheology of Glassy Materials using Dielectric Molecular ProbeSpeaker: Tadashi Inoue (Osaka University)
-
90
Profile of Hiroshi WatanabeSpeakers: Tadashi Inoue (Osaka University), Dr Yumi Matsumiya (ICR, Kyoto University)
-
87
-
12:10
Lunch Lounge (Mathematics Building)
Lounge
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2 -
Plenary Presentations: Jaewook Nam, Seoul National University Room 100 (Mathematics Building)
Room 100
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2Convener: Joung Sook Hong-
91
Coating process for battery electrode
Abstract:
For next-generation electronics systems and devices, such as flexible displays and energy harvesting (or storage) devices, high performance, versatility, and flexibility are frequently necessary. A film, which is often a polymer or soft substrate with numerous layers of electrically conductive, semiconducting, and insulating materials superimposed on it, is a key component of these devices. These layers can be created using a variety of coating techniques. The continuous liquid coating technique, a kind of roll-to-roll process, is one of them and is widely acknowledged as an appealing way to generate affordable, high-throughput, and large-area coated layers. The coating liquid may exhibit complex rheological characteristics if it contains a variety of particles, additives (such a binder), and solvents. The main challenges in this process are how to regulate flows inside large manufacturing equipment to regulate microscopic properties, such as thickness homogeneity, particle microstructures inside coated layers, etc. Such problems require an understanding of the physical or chemical phenomena underlying them from a fundamental engineering perspective. Such knowledge might be beneficial for the process' analysis and design. For instance, while analyzing complex film formation flow in various types of applicators, such as slot die, roll, and spray, the rheological characteristics of a coating liquid must be taken into consideration. To help with the design of the drying machine, a microstructures index or indication must also be created. In this talk, various research initiatives to address these coating difficulties, including flows inside pipe systems and coating machines, will be shown. Some elements of these coating issues will also be highlighted.Bio: Jaewook Nam is an Associate Professor in the Department of Chemical and Biological Engineering at the Institute of Chemical Processes, Seoul National University in Korea. Dr. Nam performs creative research to understand microscale flow phenomena through experiment, theory, and computation to design a high-performance film production. He received his BSc in 2000, MSc in 2004; and his PhD from the University of Minnesota in 2009. He completed his postdoctoral research in the Department of Chemical and Biomolecular Engineering at Rice University.
Speaker: Jaewook Nam (Seoul National University)
-
91
-
Self-assembly and Flow-induced Systems/Gels Room 203 (Mathematics Building)
Room 203
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2Convener: Quan Chen (Changchun Institute of Applied Chemistry Chinese Academy of Science)-
92
Simulation of Competition between Reaction and Relaxation in Gelation KineticsSpeaker: Takashi Uneyama (Nagoya University)
-
93
Quantifying the Enhancement Effect of Strain Induced Crystallization on Tearing Energy by Edge Crack Test MethodSpeaker: Katsuhiko Tsunoda
-
94
REVEALING THE CORRELATION BETWEEN STRAIN-INDUCED CRYSTALLIZATION AND LOCAL STRAIN FIELD AROUND THE CRACK-TIP OF NATURAL RUBBERSpeaker: Dr Thanh-Tam MAI (Kyoto University, Kyoto, Japan)
-
95
Cluster formations of terminal groups of polyisoprenes in natural rubbers: Molecular dynamics simulation studySpeaker: Dr Taniguchi Takashi (Department of Chemical Engineering, Graduate school of engineering, Kyoto University)
-
96
DIVERCITY IN STRAIN-INDUCED CRYSTALLIZATION OF NATURAL RUBBER BY BIAXIAL ELONGATIONSpeaker: Shinichi Sakurai
-
92
-
Suspensions and Colloids Room 147 (Geography Building)
Room 147
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Hartmut Löwen-
97
KEYNOTE: Shear thickening in dense suspensions of rigid rodsSpeaker: George Petekidis (IESL-FORTH, Crete, Greece)
-
98
Flow-induced structural change of cathode slurry during storage and its mechanismSpeaker: Mr Jeong Hoon Park (School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Korea)
-
99
PRACTICAL RHEOMETRY FOR SUSPENSIONS AND OTHER FUN COMPLEX SYSTEMSSpeaker: David Moonay
-
100
YIELD AND FLOW IN AGGREGATED PARTICULATE SUSPSENSIONS IN WATERSpeaker: Dr Anthony Stickland (The University of Melbourne)
-
97
-
Non-Newtonian Fluid Mechanics and Stability Room 200 (Geography Building)
Room 200
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Shinji Tamano-
101
KEYNOTE: COMPUTATIONAL ROD CLIMBING AND DIPPING DEPENDENT UPON NORMAL STRESSESSpeaker: Youngdon Kwon
-
102
Alignment of wormlike micelles under shear flow: Comparison with polymersSpeaker: Yusuke Koide (Osaka University)
-
103
MOLECULAR DYNAMICS SIMULATION OF THE BEHAVIOR OF THIN LUBRICATION FILMSpeaker: Dongjie Liu
-
104
Effect of viscosity contrast in structure -rheology relationship in sheared lamellar mesophase in 3-DSpeaker: Arkaprava Pal (IISc Bangalore)
-
101
-
Hiroshi Watanabe – Honorary Symposium Room 104 (Mathematics Building)
Room 104
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2Convener: Dr Yumi Matsumiya (ICR, Kyoto University)-
105
VISCOELASTIC PROPERTIES OF BIDISPERSE LINEAR POLYMERS UNDER ELONGATIONAL FLOWSpeaker: Prof. van Ruymbeke Evelyne (Bio and Soft Matter, UClouvain)
-
106
Dual slip-link simulation study on stretch-orientation-induced reduction of friction in bi-disperse blendsSpeaker: Takashi Taniguchi (Department of Chemical Engineering, Graduate school of engineering, Kyoto University)
-
107
Elongation viscosity of a poly(styrene-b-2-vinylpyridine) block copolymer forming spherical microphage-separated structureSpeaker: Yuya Doi (Nagoya University)
-
108
Primitive chain network simulations for non-linear rheology of monodisperse polystyrene melts with friction change and violation of the fluctuation-dissipation theorem.Speaker: Prof. Yuichi Masubuchi (Nagoya University)
-
109
UNIVERSALITY OF POLYMER MELTSSpeaker: quan chen (Changchun institute of applied chemistry chinese academy of science)
-
105
-
15:40
Coffee Break Lounge (Mathematics Building)
Lounge
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2 -
Self-assembly and Flow-induced Systems/Gels Room 203 (Mathematics Building)
Room 203
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2Convener: Kenji Urayama-
110
KEYNOTE: Relationships between viscoelastic relaxation and network connectivity in transient networks with well-controlled network structuresSpeaker: Takuya Katashima (The University of Tokyo)
-
111
Phantom chain simulations for tetra and tri-branched networksSpeaker: Prof. Yuichi Masubuchi (Nagoya University)
-
112
Negative energy elasticity in polymer gel elasticitySpeaker: Takamasa Sakai (The University of Tokyo)
-
113
Universal Equation of State of Osmotic Pressure for Polymer GelsSpeaker: Mr Takashi Yasuda (The University of Tokyo, Japan)
-
110
-
Suspensions and Colloids Room 147 (Geography Building)
Room 147
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Chaimongkol Saengow-
114
INFLUENCES OF SHAPE OF MOLECULAR WEIGHT DISTRIBUTION ON TENSILE PROPERTIES OF POLYETHYLENE SOLIDSSpeaker: Takumitsu Kida (Japan Advanced Institute of Science and Technology)
-
115
LINKING MULTISCALE RHEOLOGY TO PERFORMANCE OF HIERARCHICALLY STRUCTURED PEM FUEL CELL CATALYST LAYERSpeaker: Min-Hyung Markus Lee (University of Calgary)
- 116
-
117
Slip Behaviour and Thixotropy of Kaolinite and Mature Fines TailingsSpeaker: Jourdain Piette (UBC)
-
118
Z-SHAPED DEJAMMING PHASE DIAGRAM OF COLLOIDAL GELSSpeaker: Mr Bin Xia (Tongji University)
-
114
-
Non-Newtonian Fluid Mechanics and Stability Room 200 (Geography Building)
Room 200
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Li Xi (McMaster University)-
119
KEYNOTE: Psychorheology: toward understanding how we experience viscous and viscoelastic materialsSpeaker: Dr Jeffrey Martin (Johnson & Johnson Consumer Inc.)
-
120
Modelling drop mobility on lubricated surfaces using a ternary free energy lattice Boltzmann algorithmSpeaker: Dr Sirio Orozco-Fuentes (Northumbria University)
-
121
Analysis of pulsatile flows of complex fluids in two-dimensional channelsSpeaker: Ms Nayeon Park (Seoul National University)
-
122
Solving the closure problem for dilute polymer solutionsSpeaker: Prof. Santosh Ansumali (Jawaharlal Nehru Centre for Advanced Scientific Research)
-
119
-
Hiroshi Watanabe – Honorary Symposium Room 104 (Mathematics Building)
Room 104
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2Convener: Tadashi Inoue (Osaka University)-
123
RHEO-DIELECTRIC BEHAVIOR OF UNENTANGLED POLY (BUTADIENE OXIDE) UNDER STEADY SHEARSpeaker: Dr Yumi Matsumiya (ICR, Kyoto University)
-
124
EXPERIMENTAL STUDY ON PHASE SEPARATION DYNAMICS OF UNENTANGLED POLYMER BLEND WITH DYNAMIC ASYMMETRYSpeaker: Dr Takeshi Sato (Institute for Chemical Research, Kyoto University, Kyoto, Japan)
- 125
-
126
Molecular Dynamics Simulations for Viscosity Growth and Conformations of Unentangled Polymers under Shear FlowSpeaker: Takashi Uneyama (Nagoya University)
-
17:30
No talk scheduled.
-
123
-
Social Events: Pacific Spirit Park Hike UBC
UBC
If you are interested in going for a hike in the Pacific Spirit Park before heading to the Koerner’s Pub, please email admin@prcr2023.ca with HIKE in the subject. Hikes will be guided. -
Social Events: Pub Night & Karaoke Koerner's Pub
Koerner's Pub
1758 West Mall Vancouver, BC V6T 1Z2
-
-
-
Plenary Presentations: JNNFM Walters Award Lecture - Thomasina Ball Room 100 (Geography Building)
Room 100
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Ian Frigaard (University of British Colubia)-
127
JNNFM Walters Award Lecture: Viscoplastic Fingers and Fractures in a Hele-Shaw Cell
Abstract:
Radial displacement flows of viscoplastic fluid in a Hele-Shaw cell can give rise to a range of instabilities. Theoretically, the viscoplastic version of the Saffman-Taylor interfacial instability [1] is predicted to occur when the yield-stress fluid is displaced by a Newtonian one. The interface is expected to remain stable, however, if the yield-stress fluid displaces the Newtonian one [2,3].
Experiments using an aqueous suspension of Carbopol show that the Saffman-Taylor instability is observed when the Carbopol is displaced by either air or an immiscible oil, and no instabilities are observed when the displacement is the other way around. However, when water is used in the displacement experiments, other instabilities appear that take the form of localized fractures of the Carbopol over the sections of the interface that are under tension. The fractures arise in both the stable and unstable Saffman-Taylor configurations, leading to a rich range of patterns within the Hele-Shaw cell.
Supported by these experimental observations, we argue that this pattern formation results from the solid-mechanical-like failure of the Carbopol gel. In particular, the fractures result from a reduction of the effective fracture toughness of the suspension when placed in contact with water, also observed in the spreading of Carbopol gravity currents into a shallow layer of water [5].REFERENCES
1. Saffman P.G., Taylor G.I. The penetration of a fluid into a porous medium or Hele-Shaw cell containing a more viscous liquid, Proc. Roy. Soc. A, 245, (1242) 312-329, 1958.
2. Ball T.V., Balmforth N.J., Dufresne A.P. Viscoplastic fingers and fractures in a Hele-Shaw cell, J. Non-Newton. Fluid Mech., 289, 104492, 2021.
3. Coussot P. Saffman-Taylor instability in yield-stress fluids, J. Fluid Mech., 380, 363-376, 1999.
4. Sayag R., Worster M.G. Instability of radially spreading extensional flows. Part 2: Theoretical analysis, J. Fluid Mech., 881, 739-771, 2019.
5. Ball T.V., Balmforth N.J., Dufresne A.P., Morris S.W. Fracture patterns in viscoplastic gravity currents, J. Fluid Mech., 934, A31, 2022.About the JNNFM Walters Award Prize.
Bio:
Thomasina Ball is a Warwick Zeeman Lecturer and Leverhulme Early Career Fellow in the Mathematics Institute. Dr. Ball uses theoretical and experimental techniques to understand non-Newtonian fluid dynamics and fluid-structure interactions with applications to geophysical phenomena. She received her MMath in 2015, and PhD from the University of Cambridge, U.K., in 2019. She completed her postdoctoral studies in Department of Mathematics at the University of British Columbia under the supervision of Prof. Neil Balmforth who is jointly awarded the JNNFM Walters Award Prize.Speaker: Thomasina Ball (University of Warwick)
-
127
-
10:00
Coffee Break Lounge (Mathematics Building)
Lounge
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2 -
Self-assembly and Flow-induced Systems/Gels Room 212 (Geography Building)
Room 212
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Takamasa Sakai (The University of Tokyo)-
128
KEYNOTE: Nonlinear Rheology of Concentrated Poly(vinyl alcohol)/Borax Aqueous SolutionSpeaker: Quan Chen (Changchun Institute of Applied Chemistry, Chinese Academy of Science)
-
129
Hystereses In One-dimensional Compression Of A Poroelastic HydrogelSpeaker: Zelai Xu (University of British Columbia)
-
130
NONLINEAR RHEOLOGY OF ENTANGLED WORMLIKE MICELLES: A SLIP-SPRING SIMULATION STUDYSpeaker: Dr Takeshi Sato (Institute for Chemical Research, Kyoto University)
-
131
COUPLING A IONIC SURFACTANT AND A DRUG SALT: EQUILIBRIUM CHARACTERISTIC PARAMETERS & STRAIN HARDENING IN START-UP FLOWSpeaker: Prof. Nino Grizzuti (Università degli Studi di Napoli Federico II)
-
128
-
Emulsions, Foams and Bubbles Room 147 (Geography Building)
Room 147
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Marjan Zare (University of British Columbia)-
132
Controlled Collision of Hele-Shaw Droplets in Extensional Flow Using a Six-Port Microfluidic DeviceSpeaker: Aysan Razzaghi (University of Toronto)
-
133
Bubbles in Yield Stress Fluids: Link between the Rheology and Stability of BubblesSpeaker: Masoud Daneshi (Department of Mathematics, University of British Columbia)
-
134
PREPARATION AND PROPERTIES OF CONDUCTIVE FOAMS VIA HIGH INTERNAL PHASE EMULSIONSpeaker: Prof. Seong Jae Lee (The University of Suwon)
-
135
Shear-triggered CoalescenceSpeaker: Alireza Mashayekhi (University of British Columbia)
-
136
A New Instrument for Interfacial Dilational RheologySpeaker: Yun-Han Huang (University of British Columbia)
-
132
-
Non-Newtonian Fluid Mechanics and Stability Room 200 (Geography Building)
Room 200
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Miguel Moyers-
137
Rheological effects on purely-elastic flow asymmetries in the cross-slot geometrySpeaker: Arisa Yokokoji (Okinawa Institute of Science and Technology, Okinawa, Japan)
-
138
FLOW OF A WORMLIKE MICELLAR SOLUTION OVER A LONG CAVITYSpeaker: Mr Fabian Hillebrand (Okinawa Institute of Science and Technology Graduate University)
-
139
EFFECTS OF CHANNEL LENGTH IN EXPANSION PARTS ON FLOW REGIMES OF POLYMER SOLUTION IN CONSECUTIVE ABRUPT CONTRACTION-EXPANSION CHANNELSSpeaker: Prof. Ruri Hidema (Kobe University)
-
140
Instabilities in immiscible multi-layer viscous shear flows in the presence of interfacial slipSpeaker: Anna Katsiavria (Imperial College London)
-
141
EFFECT OF ULTRASOUND FIELDS ON ASPHALTENE-LADEN W/O INTERFACES: A MICRORHEOLOGY APPROACHSpeaker: Razie Khalesi Moghaddam (university of calgary)
-
137
-
Hiroshi Watanabe – Honorary Symposium Room 100 (Geography Building)
Room 100
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Youngdon Kwon-
142
KEYNOTE: Rheology modification of polymeric networks via loop threadingSpeaker: Dimitris Vlassopoulos (FORTH and University of Crete)
-
143
Time-Strain Separability and Inseparability in Multiaxial Stress Relaxation of Polymer Gels with Permanent and Transient CrosslinksSpeaker: Kenji Urayama
-
144
INTRIGUING MELTING BEHAVIOR OF THE NATURAL RUBBER CRYSTAL FORMED BY STRAIN-INDUCED CRYSTALLIZATIONSpeaker: Shinichi Sakurai
-
145
Have you ever listened to the sound of the fluid?Speaker: Prof. Kyung Hyun Ahn (Seoul National University)
-
142
-
12:10
Lunch break Lounge (Mathematics Building)
Lounge
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2 -
Self-assembly and Flow-induced Systems/Gels Room 203 (Mathematics Building)
Room 203
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2Convener: Takuya Katashima (The University of Tokyo)-
146
Effect of salt concentration and flow rate on clogging dynamics in the single micro-poreSpeaker: Dae Yeon Kim (Seoul National University (SNU))
-
147
Star-polymer-DNA gels showing predictable stress relaxation behaviorSpeaker: Xiang Li (Hokkaido University)
-
148
OBSERVATION OF FLOW BIREFRENGENCE IN DYNAMIC SQUEEZE FLOWSpeaker: Manabu Kato (National Institute of Technology, Tsuyama College)
-
149
SAXS, SANS and Spectroscopy Study on High Tunability of a Block Copolymer by Strongly Selective SolventsSpeaker: Prof. Shigeru Okamoto (Nagoya Institute of Technology)
-
15:20
No talk scheduled
-
146
-
Polymer Solutions and Melts Room 104 (Mathematics Building)
Room 104
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2Convener: Ravi Jagadeeshan (Department of Chemical and Biological Engineering, Monash University)-
150
ADVANCED POLYMER RHEOLOGY BASED ON RHEO-OPTICAL TOOLS AND A DUAL MOTOR DEVICESpeaker: Joerg Laeuger (Anton Paar Germany)
-
151
UNIVERSAL DIFFUSION OF DENDRIMERS IN SEMIDILUTE SOLUTIONS OF LINEAR POLYMERSSpeaker: Ravi Jagadeeshan (Department of Chemical and Biological Engineering, Monash University)
-
152
The Effect of the Solvent Dielectric Constant on the Conformation and Dynamics of Polyelectrolytes in SolutionSpeaker: Atsushi Matsumoto (University of Fukui)
-
153
RECENT ADVANCES IN POLYMER VISCOELASTICITY FROM GENERAL RIGID BEAD-ROD THEORYSpeaker: Prof. Alan Jeffrey Giacomin (Queen's University)
-
154
Improvement of Heat Resistance using Physical Aging in Polystyrene Injection MoldingsSpeaker: Mr Kosaku Tao (1;Osaka Research Institute of Industrial Science and Technology. 2;Depertment of Material Science, School of Engineering, University of Shiga Prefecture.)
-
150
-
Emulsions, Foams and Bubbles Room 147 (Geography Building)
Room 147
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Arun Ramachandran (University of Toronto)-
155
KEYNOTE: Squeezing of a concentrated emulsion with surfactant through a periodic porous mediumSpeaker: Alexander Zinchenko (University of Colorado Boulder)
-
156
The effect of surface viscosity on droplet breakup and relaxation under extensional flowSpeaker: Prof. Vivek Narsimhan (Davidson School of Chemical Engineering Purdue University)
-
157
Flow and instability induced by bubbles rising in a two-layer fluid systemSpeaker: Marjan Zare (University of British Columbia)
-
158
DYNAMICS AND MIXING OF TRAPPED DROPLETSSpeaker: Gesse Roure (University of Colorado Boulder)
-
155
-
Non-Newtonian Fluid Mechanics and Stability Room 200 (Geography Building)
Room 200
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Ian Frigaard (University of British Colubia)-
159
GAS PROPAGATION THROUGH POROUS MEDIA FILLED WITH YIELD-STRESS FLUIDSpeaker: Ali Pourzahedi
-
160
Localization of stirring flows: the effect of the yield stressSpeaker: Mohammad Reza Daneshvar Garmroodi (Concordia University)
-
161
Thin-film flow of a Bingham fluid over topography with a temperature dependent rheologySpeaker: Miguel Moyers
-
162
Damping of surface waves by a floating viscoplastic plateSpeaker: Xuemeng Wang (University of British Columbia)
-
15:20
No talk scheduled.
-
159
-
Social Events: Buses to Downtown Vancouver Gage Towers (UBC)
Gage Towers
UBC
Departure times: 4:15 pm, 5:00 pm and 5:30 pm-
16:15
First bus Gage Towers (UBC)
Gage Towers
UBC
Departure times: 4:15 pm, 5:00 pm and 5:30 pmBus will depart from the Gage Towers, between the Gage and the Orca building.
-
17:00
Second bus Gage Towers (UBC)
Gage Towers
UBC
Bus will depart from the Gage Towers, between the Gage and the Orca building.
-
17:35
Last bus Gage Towers (UBC)
Gage Towers
UBC
Departure times: 4:15 pm, 5:00 pm and 5:30 pmBus will depart from the Gage Towers, between the Gage and the Orca building.
-
16:15
-
Social Events: Cruise Dinner on the Magic Spirit Vancouver Harbour
Vancouver Harbour
Boarding is behind the Westin Hotel: Westin Bayshore Marina 1601 Bayshore Drive
-
-
-
Plenary Presentations: Arun Ramchandran, University of Toronto Room 100 (Geography Building)
Room 100
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Reghan Hill (McGill University)-
163
Substrate colonization by an emulsion drop prior to spreading
Abstract:
In classical wetting, the spreading of an emulsion drop on a surface is preceded by the formation of a bridge connecting the drop and the surface across the sandwiched film of the suspending medium. However, this widely accepted mechanism ignores the finite solubility of the drop phase in the medium. We present experimental evidence of a new wetting mechanism, whereby the drop dissolves in the medium, and nucleates on the surface as islands that grow with time. Island growth is predicated upon a reduction in solubility near the contact line due to attractive interactions between the drop and the surface, overcoming Ostwald ripening. Ultimately, wetting is manifested as a coalescence event between the parent drop and one of the islands, which can result in significantly large critical film heights and short hydrodynamic drainage times prior to wetting. This discovery has broad relevance in areas such as froth flotation, liquid-infused surfaces, multiphase flows and microfluidics.
Bio:
Arun Ramchandran is an Associate Professor in the Department of Chemical Engineering and Applied Chemistry at the University of Toronto. Dr. Ramchandran focuses on generating fundamental understanding in the area of suspensions of rigid and deformable particles through experiment, theory, and computation. He received his BSc in 2001and his PhD from the University of Notre Dame in 2007. He completed his postdoctoral research in the Department of Chemical Engineering at the University of California, Santa Barbara.Speaker: Arun Ramachandran (University of Toronto)
-
163
-
10:00
Coffee Break Lounge (Mathematics Building)
Lounge
Mathematics Building
1984 Mathematics Rd Vancouver, BC V6T 1Z2 -
Polymer Solutions and Melts Room 212 (Geography Building)
Room 212
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Ravi Jagadeeshan (Department of Chemical and Biological Engineering, Monash University)-
164
KEYNOTE: Modular material properties in bimodal blends of amine functionalized polyolefinsSpeaker: Benjamin Yavitt (University of Cincinnati)
-
165
Linear Viscoelastic Properties of Comb-Shaped Ring PolystyrenesSpeaker: Yuya Doi (Nagoya University)
-
166
Application of a robust self-healing experimental protocol for associating polymersSpeaker: Ms Nafiseh Moradinik (The University of British Columbia)
-
164
-
Industrial Rheology in Polymer Processing Room 200 (Geography Building)
Room 200
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Jourdain Piette (UBC)-
167
Rheology-Driven Continuous In-Melt Separation of PET/PE Blends and Laminates: A Novel Approach to RecyclingSpeaker: Joao Maia (Case Western Reserve University)
-
168
Experimental Validation of Viscosity Homogenization Treatment System for Waste Plastic RecyclingSpeaker: Mr Hiroki Endo (Dept. of Mechanical Engineering, Nagaoka University of Technology)
-
169
DEVELOPMENT OF COMPOSITE VIA SECONDARY POLYMER-INDUCED PARTICLE AGGREGATION AND DESTRUCTION OF ITS PARTICLE AGGREGATION DURING 3D PRINTINGSpeaker: JOUNG SOOK HONG
-
170
ANALYSIS OF OPERATING LIMITS OF VACUUM-ASSISTED SLOT DIE COATING OF HERSCHEL-BULKLEY FLUIDSSpeaker: Myungjae Lee
-
167
-
Non-Newtonian Fluid Mechanics and Stability Room 100 (Geography Building)
Room 100
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Ruri Hidema-
171
KEYNOTE: Effect of local relaxation time on drag reduction in turbulent boundary layer flow of viscoelastic fluidsSpeaker: Prof. Shinji Tamano (Nagoya Institute of Technology)
-
172
Turbulent drag reduction with flexible and rigid polymer solutions: from low to maximum drag reductionSpeaker: Rodrigo Mitishita (University of British Columbia)
-
173
Relating elastoinertial turbulence to the phenomenology of polymer drag reductionSpeaker: Li Xi (McMaster University)
-
171
-
Rheology in the Mining Industry Room 147 (Geography Building)
Room 147
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2Convener: Masoud Daneshi (Department of Mathematics, University of British Columbia)-
174
RHEOLOGICAL CHARACTERIZATION OF SUSPENSIONS GENERATED FROM COPPER ORES O VARYING MINERALOGICAL FEATURES AT GRINDING CONDITIONSSpeakers: Leopoldo Gutierrez (Universidad de Concepción, Department of Metallurgical Engineering), Dr Leopoldo Gutierrez (Universidad de Concepción, Department of Metallurgical Engineering)
-
175
Quantifying the effects of fines and clays on mineral tailings dewateringSpeaker: Anthony Stickland (The University of Melbourne)
-
176
Modelling high-pressure dewatering rolls for mineral tailingsSpeaker: Nilanka Ekanayake (The University of Melbourne)
-
177
Influence of fluid type in the transition from spray to roping in hydrocyclonesSpeaker: Fernando Betancourt (University of Concepción)
-
174
-
Closing Remarks Room 100 (Geography Building)
Room 100
Geography Building
1984 West Mall Vancouver, BC V6T 1Z2 -
Social Events: Closing Lunch Mathematics & Geography Buildings
Mathematics & Geography Buildings
University of British Columbia, Point Grey Campus
1984 Mathematics Rd / 1984 West Mall Vancouver, BC V6T 1Z2 CANADA
-