D314 高エンタルピー衝撃風洞内の非平衡流れ

概要

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We have simulated a shock wave/boundary layer interaction with thermal and chemical nonequilibrium, which will be produced in high enthalpy impulse facilities such as shock tunnel. The governing equations are the axisymmetric, compressible Navier-Stokes equations. In this study, Park's two-temperature model, where air consists of 5 species is used for defining the thermodynamic properties of a driven air gas. The numerical scheme employed here is a modified AUSM with the second order MUSCL approach and the second order explicit time integration. The present simulation is initiated at the time when the incident shock wave with M_s=6.5 reflects at the end wall of driven tube. The numerical results indicate that a thermally and chemically nonequilibrium flow field is created by a bifurcation shock wave due to shock wave/boundary layer interaction, which might reduce the total enthalpy of the reservoir gas.
日本流体力学会の論文
2000-07-25