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ban_aps_2012_poster.pdf2013-02-22 12:17:32Brian Nelson

Status of Validation Platform Experiment Simulations by the PSI-Center

Author: Brian A. Nelson
Requested Type: Poster Only
Submitted: 2012-12-07 14:39:02

Co-authors: C. AKCAY, A.H. GLASSER, C.J. HANSEN, T.R. JARBOE, C.C. KIM, G.J. MARKLIN, R.D. MILROY, and U. SHUMLAK PSI-Center - Univ of Washington, C.R. SOVINEC and J.B. O'BRYAN PSI-Center - Univ of Wisconsin-Madison, E. HELD and J.-Y. JI PSI-Center - Utah State Univ

Contact Info:
University of Washington
120 AERB, Box 352250
Seattle, WA   98195

Abstract Text:
The Plasma Science and Innovation Center (PSI-Center - http://www.psicenter.org) assists collaborating validation platform experiments with extended MHD simulations. Present collaborators include the Bellan Plasma Group (Caltech), CTH (Auburn U), FRX-L (Los Alamos National Laboratory), HIT-SI (U Wash - UW), MAST (Culham), MST & Pegasus (U Wisc-Madison), PHD (UW), PFRC (PPPL), SSX (Swarthmore College), TCS-U (UW), and ZaP (UW). Modifications have been made to the NIMROD, HiFi, and PSI-Tet codes to specifically model these experiments, including mesh generation/refinement, application of appropriate boundary conditions (time-varying external fields, insulating and sheath BCs, local density/heat sources, etc.), moment-based non-local closures, 2D & 3D equilibria (including integrated DCON stability calculations), scalable solvers, and kinetic and neutral particle interactions. Post-processing and visualization tools have also been developed and distributed to the wider simulation community. The PSI-Center is presently adding dynamic neutrals to NIMROD. When implemented in NIMROD, results with dynamic neutrals will be compared to the dynamic neutral particle physics in the 2D version of HiFi. After verification in 2D, HiFi and NIMROD calculations with dynamic neutrals will be made in 3D for comarison and validation with the collaborating experiments. Results from these simulations, as well as an overview of the PSI-Center status and plans will be presented.

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