Application of PSE Analysis Method with Transitional Turbulence Model to Typical Hypersonic Flows

Yan Peigang, Qian Xiaoru, Han Wanjin

An advanced transitional turbulence model () has been applied to the simulation of the typical hypersonic flows in the present investigation, which is corrected with empirical correlation for the transition consideration. Combining PSE (stability analysis equation) with eN prediction method, it has been studied how to find out the position of the most unstable flow within the boundary layer, so that the transition empirical correlation parameters would be more appropriate for the specified flow while being independent of designer’s experiences. The typical hypersonic flow field over a blunt cone has been simulated, through which it could be found that both the computational results of the wall heat flux and boundary layer transition region agree well with the experimental results. Besides t, both the interaction between shock wave with the boundary layer on a flat plat, and the flow across a compression corner have been simulated by the same model as well. It was found that the present methods are also applicable for the simulation of complicated flow with shock wave/boundary layer interaction, and the results turned out to be superior to those employing traditional turbulence models.