G223 高エンタルピー衝撃風洞における試験気流生成過程の数値シミュレーション

概要

論文の詳細を見る
The flow field of a nozzle starting process in high-enthalpy shock tunnel with thermal and chemical nonequilibrium has been simulated. 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 air as a driven gas. The numerical scheme employed here is the hybrid scheme of explicit and implicit methods, which was developed at our laboratory, along with AUSM^+ to evaluate inviscid fluxes. In the present simulation, the Mach number of an incident shock wave is set at Ms=10.0. It corresponds to a specific enthalpy, h_0,of 12MJ/kg. The results clearly show the thermal and chemical nonequilibrium flow field of a nozzle starting process around the end of shock tube section and in the contoured nozzle.
日本流体力学会の論文
2001-07-31