| Parallel Fully-Implicit Computation of Magnetohydrodynamics Acceleration Experiments | |
| Wan T(万田); Candler G; Wan T | |
| Source Publication | ISCM II AND EPMESC XII, PTS 1 AND 2 |
| 2010 | |
| Pages | 1553-1558 |
| Conference Name | 2nd International Symposium on Computational Mechanics |
| Conference Date | NOV 30-DEC 03, 2009 |
| Conference Place | Hong Kong, PEOPLES R CHINA |
| 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. The conservation equations are discretized with implicit time marching and the second-order modified Steger-Warming scheme, and the resulted linear system is solved iteratively with Newton-Krylov-Schwarz method that is implemented by PETS,: package. The results of convergence tests arc plotted, which show good scalability and convergence around twice faster when compared with the DPLR method. Then five 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. Our computation shows that the electrical conductivity distribution is not uniform in the powered section of the MHD channel, and that it is important to include Joule heating in order to calculate the correct conductivity and the MHD acceleration. |
| Keyword | Electron-temperature Joule Heating Fully-implicit Method |
| ISBN | 978-0-7354-0778-7 |
| Indexed By | CPCI(ISTP) |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/44318 |
| Collection | 高温气体动力学国家重点实验室 |
| Corresponding Author | Wan T |
| Recommended Citation GB/T 7714 | Wan T,Candler G,Wan T. Parallel Fully-Implicit Computation of Magnetohydrodynamics Acceleration Experiments[C]ISCM II AND EPMESC XII, PTS 1 AND 2,2010:1553-1558. |
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