Abstract Details

poster.pdf2006-03-08 13:32:55Charlson Kim

Full Orbit PIC in NIMROD

Author: Charlson C. Kim
Submitted: 2005-12-21 13:46:51

Co-authors: R.D. Milroy

Contact Info:
University of Washington - PSI Center
Room 120 AERB, BOX 352250
Seattle, WA   98195

Abstract Text:
The primary goal of the Plasma Science and Innovation Center (PSI Center) is to
refine and optimize existing MHD codes to achieve improved predictability for emerging
concept (EC) experiments. Kinetic effects have been shown to play a dominant role in some EC
experiments, particularly in FRC stability. The PSI Center will extend the hybrid kinetic-MHD implementation in
NIMROD from the drift kinetic model to the full kinetic model to include sufficient
physics to accurately account for these effects, in particular large Larmour
radius. The Boris push has been implemented for particles in NIMROD. However,
this places a severe timestep restriction on the particle time step. We discuss
several strategies for circumventing this restriction to simulate on the MHD
time scale. We will show some of the preliminary results from the implementation
of full orbit (Lorentz force) particles coupled to the NIMROD code.

Characterization: E9


The University of Texas at Austin

Innovative Confinement Concepts Workshop
February 13-16, 2006
Austin, Texas

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