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A Numerical Research on a Compressibility-correlated Langtry's Transition Model for Double Wedge Boundary Layer Flows 被引量:16
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作者 ZHANG Xiaodong GAO Zhenghong 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2011年第3期249-257,共9页
A new compressibility correlation is introduced in the Langtry's local variable-based transition model to investigate the phe- nomenon on double wedge shock/boundary layer interactions. The cmnputational analysis com... A new compressibility correlation is introduced in the Langtry's local variable-based transition model to investigate the phe- nomenon on double wedge shock/boundary layer interactions. The cmnputational analysis compared with experimental data has been made to assess the influence of the wall temperature and the leading edge nose radius on a hypersonic double wedge boundary layer. It has been found that the laminar boundary layer separation occurs on the first ramp. Furthermore, the wall temperature and the leading edge nose radius have remarkable influence on the separation characteristics in the kink. Comparison of the calculated pressure coefficient distribution and the boundary layer profile with the experimental data shows that better results can be achieved when using the modified transition model. 展开更多
关键词 transition model boundary layer hypersonic double wedge flat compressibility correlation wall temperature blunness radius
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