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Evaluation of engineering turbulence models for complex supersonic flows
Zhao Rui, Yan Chao*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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ժҪ ��8°,16°,20°,24°�����ٶ�άѹ���սǽ�������ֵģ��,ϵͳ������SA(Spalart-Allmaras), k-ω, SST(Shear Stress Transport)3�ֹ��̳�������ģ�ͶԼ���/�߽����Ÿ���������ģ����������.����"��"���š�С����,���̳�������ģ���ܹ���׼ȷ��Ԥ����ѹ����Ħ�����������ֲ�,������"ǿ"���š�����������ɽϴ��ƫ��.ͬʱ,���ŷ�����������,������ģ�͵��������ܲ���������,��ֵ����Ҳ��һ����Ӱ��.
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Abstract�� Supersonic flows past a series of two-dimensional compression ramps were simulated by employing three popular engineering turbulence models, namely Spalart-Allmaras(SA), k-ω, shear stress transport(SST). The performance of the three engineering turbulence models was evaluated and summarized. All three turbulence models are reasonably accurate to predict the surface pressure, skin friction and heat transfer distribution for "weak" shock/boundary-layer interactions, but show significant discrepancies with experimental data for "strong" interactions. Each turbulence model shows much different simulation capability with the separation lengths increased, and the numerical method has much effect too.
Keywords�� supersonic flow   turbulence models   shock   boundary layers   computational fluid dynamics     
Received 2009-12-23;
Fund:

����973�ƻ�������Ŀ(2009CB724104)

About author: �� ��(1987-),��,ɽ��������,��ʿ��,zr8800@gmail.com.
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Zhao Rui, Yan Chao.Evaluation of engineering turbulence models for complex supersonic flows[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(2): 202-205,215
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