TY - GEN
T1 - Computational simulation of magnetohydrodynamics acceleration experiments using newton-krylov-schwarz method
AU - Wan, Tian
AU - Suzuki, Ryuta
AU - Candler, Graham V.
PY - 2007
Y1 - 2007
N2 - A three-dimensional MHD solver is described in the paper. The solver simulates reacting flows with nonequilibrium between translational-rotational, vibrational and electron translational modes. Also included are models for electrical conductivity, electron thermal conductivity and collision frequencies. The conservation equations are discretized with implicit time marching and the second-order Steger-Warming scheme, and the resulted linear system is solved iteratively with Newton-Krylov-Schwarz method that is implemented by PETSc package. The results of convergence tests are plotted, which show scalability when adequate number of processors are used. Then eleven test runs are conducted simulating the experiments done at the NASA Ames MHD channel, and the calculated pressures, temperatures, electrical conductivity, back EMF, load factors and flow accelerations are shown to agree with the experimental data.
AB - A three-dimensional MHD solver is described in the paper. The solver simulates reacting flows with nonequilibrium between translational-rotational, vibrational and electron translational modes. Also included are models for electrical conductivity, electron thermal conductivity and collision frequencies. The conservation equations are discretized with implicit time marching and the second-order Steger-Warming scheme, and the resulted linear system is solved iteratively with Newton-Krylov-Schwarz method that is implemented by PETSc package. The results of convergence tests are plotted, which show scalability when adequate number of processors are used. Then eleven test runs are conducted simulating the experiments done at the NASA Ames MHD channel, and the calculated pressures, temperatures, electrical conductivity, back EMF, load factors and flow accelerations are shown to agree with the experimental data.
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M3 - Conference contribution
AN - SCOPUS:34250888774
SN - 1563478900
SN - 9781563478901
T3 - Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
SP - 4756
EP - 4769
BT - Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
T2 - 45th AIAA Aerospace Sciences Meeting 2007
Y2 - 8 January 2007 through 11 January 2007
ER -