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�������պ����ѧѧ�� 2008, Vol. 34 Issue (01) :9-12    DOI:
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Numerical simulation on opposing jet in hypersonic flow
Tian Ting, Yan Chao*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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ժҪ �����˸߷ֱ��ʵ�N-S(Navier-Stockes) ������ֵģ�ⷽ��,�Զ�ͷ��ͷ���������������о�.���㲢������ͷ�����������������������������������������ǵ����ض�����ϸ�½ṹ��Ӱ��,���Է����������������ͼ����������ȵ�ԭ����������������̽��.�о�����������Щ����ͨ���������μ���������̵�ǿ�Ⱥ�λ��,��Ӱ��������Ĵ�С��λ��,�Ӷ�ʹ�з�������ʱ����ϵ�����ܵ���Ӱ���������ʱ����.
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Abstract�� The detailed influences of the free mach number, jet mach number, attack angle on the drag coefficient reduction were studied by high precise simulation of N-S(Navier-Stockes) equations. The Numerical results show good agreement with the experiments. It is indicated that the opposing jet is effective in reducing the aerodynamic heating and drag coefficient. Conclusions were got that the opposing jet enlarges the factors of affections by influencing the strength and the positions of the barrel shock, the mach disk and the recirculation region. It is believed that the drag coefficient turns out to be very sensitive to the flow field-s structure which is highly depended on the free mach number, jet mach number and attack angle due to the opposing jet.
Keywords�� opposing jet   hypersonic   drag   numerical simulation     
Received 2006-12-27;
About author: �� ��(1983-),Ů,�Ĵ�������,˶ʿ��,deadfishlittle@sina.com.cn.
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����,�ֳ�.�����ٳ��еķ���������ֵģ��[J]  �������պ����ѧѧ��, 2008,V34(01): 9-12
Tian Ting, Yan Chao.Numerical simulation on opposing jet in hypersonic flow[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2008,V34(01): 9-12
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