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�������պ����ѧѧ�� 1998, Vol. 24 Issue (6) :625-628    DOI:
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Implicit Schemes for Numerical Simulations of Hypersonic Nonequilibrium Flows
Wu Songping, Lu Ye, Zheng Bo*
Beijing University of Aeronautics and Astronautics,Dept. of Flight Vehicle Design and Applied Mechanics

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Abstract�� Two forms of implicit TVD schemes are proposed in this paper for the simulation of nonequilibrium flows past hypersonic re-entry vehicle, which are derived from the diagonal form of an approximate-factorization algorithm and lower-upper scheme applied to the implicit part of Harten-Yee's TVD scheme respectively. Numerical tests are taken for the two-dimensional and three-dimensional chemically nonequilibrium flows, and the results demonstrate that the algorithms in the paper are both efficient with high-resolution and less cost in computation.
Keywords�� hypersonic flow   computational fluid mechanics   numerical simulation   TVD scheme     
Received 1998-07-02;
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����ƽ, ½��, ֣��.��ֵģ��߳����ٻ�ѧ��ƽ��������ʽ��ʽ[J]  �������պ����ѧѧ��, 1998,V24(6): 625-628
Wu Songping, Lu Ye, Zheng Bo.Implicit Schemes for Numerical Simulations of Hypersonic Nonequilibrium Flows[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 1998,V24(6): 625-628
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