High performance parallel implicit computations of three-Dimensional supersonic magnetohydrodynamics using PETSc library

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

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 a fully coupled parallel preconditioned GMRES method that is implemented by the PETSc package. The results of convergence tests are plotted, which show good scalability and convergence acceleration between two and Ave times when compared with the DPLR method. Then Ave test runs are conducted simulating the experiments done at the NASA Ames MHD channel, and the calculated pressures, temperatures, electrical conductivity, back EMF and now accelerations are shown to agree with the experimental data. A scramjet-driven Diagonal Conducting Wall MHD generator is also simulated which works at the design parameters of the HVEPS program taken from the reference paper. The scramjet model is taken from University of Queensland, and one set of their scramjet experiments is simulated with both fuel on and off. Then MHD power generation computation is performed on top of the scramjet model, and plotted are conductivity and Hall parameter distribution. The computed power generation is 2.2MW which is within the design power regime.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 38th AIAA Plasmadynamics and Lasers Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
Pages658-674
Number of pages17
ISBN (Print)1563479001, 9781563479007
DOIs
StatePublished - 2007
Event38th AIAA Plasmadynamics and Lasers Conference - Miami, FL, United States
Duration: Jun 25 2007Jun 28 2007

Publication series

NameCollection of Technical Papers - 38th AIAA Plasmadynamics and Lasers Conference
Volume2

Other

Other38th AIAA Plasmadynamics and Lasers Conference
CountryUnited States
CityMiami, FL
Period6/25/076/28/07

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