Speaker
Description
In current and future pulsed-power devices, it has become increasingly important to have predictive capability for determining the amount of energy coupled through the magnetically-insulated transmission line (MITL) to the load. Because of the high magnetization and low densities of electrode plasmas in the MITL gap, extended-MHD effects may play a critical role in power-flow physics. In this presentation, we show simulations from PERSEUS [1]/FLEXO and HYDRA [2], which are both capable of modeling MHD and extended-MHD effects in inner MITL power-flow. Specifically, we focus our attention on relevant power-flow plasma quantities, such as plasma density and current density, as predicted by both codes. This problem has recently been simulated with PERSEUS in Hamlin and Seyler [3], and serves as a relevant test problem for understanding the role that extended-MHD plays in power-flow systems.
- The work of N. D. Hamlin and M. Hess is funded in large part by Sandia National Laboratories. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy's National Nuclear Security Administration under Contract No. DE-NA0003525. The work of N.D. Hamlin and C.E. Seyler is supported by the National Nuclear Security
Administration stewardship sciences academic program under Department of Energy
cooperative agreements DE-FOA-0003764, DE-FOA-0001153 and DE-NA0001836.
[1] C. E. Seyler and M. R. Martin, vol. 18, 012703, 2011
[2] M. Marinak et al, Physics of Plasmas, vol. 8, 2275, 2001
[3] N. D. Hamlin and C. E. Seyler, Physics of Plasmas, vol. 25, 102705, 2018
