Two temperature effects in the HITSI experiment
POSTER
Abstract
We investigate differences between our single temperature and our new two-temperature (ion-electron) extended magnetohydrodynamics (eMHD) simulations of the HITSI device at the University of Washington, using two distinct MHD codes, PSI-Tet and NIMROD. We focus on a number of key issues: illustrating greater agreement with experiment for a number of different measurements than the single temperature code, showing that the approximate linear scaling of beta and current gain with injector frequency persist with two-temperature effects, and investigating ion and electron heat flux to the flux conserver walls. Lastly, density, temperature, and particle diffusion scans are done in PSI-TET in order to better understand the parameter space and indicate possibilities for future work.
*Work supported by U.S. Department of Energy, DOE award numbers DE-FG02-96ER54361 and DE-SC0016256.