8–13 Jun 2025
America/Winnipeg timezone
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Avalanche dynamics in a 2D tumbling drum with frictionless, cohesive oil droplets

9 Jun 2025, 11:15
15m
Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle) Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB) (DPMB) M1-9 | (DPMB)

Speaker

Simaya Rosenbloom (McMaster University)

Description

The macroscopic behaviours of granular materials are heavily dependent on their microscopic interactions. We explore the dynamics of microscopic frictionless oil droplets with a well controlled cohesive interaction in a 2D tumbling drum. The disordered, bidisperse aggregate of droplets rearrange in the rotating drum quasi-statically. We observe the angle at which the granular aggregate begins to flow, and the angle to which the system settles, post-avalanche. We explore buoyancy force to contrast the response of poly-crystalline and disordered aggregates, as well as the effect of the strength of cohesion between droplets.

Keyword-1 Avalanche
Keyword-2 Angle of repose
Keyword-3 Frictionless

Author

Simaya Rosenbloom (McMaster University)

Co-authors

Hamza Khattak Johnathan Hoggarth Prof. Kari Dalnoki-Veress (McMaster University)

Presentation materials

There are no materials yet.