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�������պ����ѧѧ�� 2011, Vol. 37 Issue (8) :907-911    DOI:
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Turbulence modeling validation in hypersonic flows
Geng Yunfei, Yan Chao, Xu Jinglei, Kang Honglin*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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ժҪ ѡȡ�˳����ٶ�ά����-ѹ���սǺ͸߳�����˫����������Ϊ��׼����,�����˼��ֵ�ǰCFD(Computational Fluid Dynamics)����Ӧ�ý����е�����ģʽ:BL(Baldwin-Lomax)ģʽ��SA(Spalart-Allmaras)ģʽ��k-ωģʽ�Լ�SST(Shear-Stress Transport)ģʽ,ͨ����ֵ��������ʵ�����ĶԱȼ�����,���йص�����ģʽ����������,�õ�һЩ������Ľ���,��ָ����������ѹ��ЧӦ��Ӱ��,����߳�����������������ʱҪ�����е�����ģʽ������Ӧ�Ŀ�ѹ������.
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Abstract�� To provide accurate numerical solutions for selected supersonic/hypersonic flow fields and to compare and evaluate the performance of selected turbulence models with experimental results,four popular turbulence models were tested and validated against experimental data of two turbulent flows. The investigated flows are 2D supersonic expansion-compression corner and hypersonic double ellipsoid. The tested turbulent models were: zero-equation model of Baldwin-Lomax(BL), one-equation model of Spalart-Allmaras(SA), two-equation k-ω/k-ε shear-stress transport(SST) model of Menter and two-equation k-ω model of Wilcox. It shows that the formal turbulent models are competent for the present supersonic flows. However, the simulation of the hypersonic flow, especially for flows at high angle of attack, compressibility modification is needed.
Keywords�� hypersonic   turbulence model   compressibility modification   computational fluid dynamics     
Received 2010-03-16;
Fund:

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About author: ���Ʒ�(1984-),��,�ӱ�ʯ��ׯ��,��ʿ��,fifigeng@yahoo.com.cn.
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���Ʒ�, �ֳ�, �쾧��, ������.�߳�������������ģʽ����[J]  �������պ����ѧѧ��, 2011,V37(8): 907-911
Geng Yunfei, Yan Chao, Xu Jinglei, Kang Honglin.Turbulence modeling validation in hypersonic flows[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(8): 907-911
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