衝撃波を伴う超音速内部流動に関する研究 : 2次元平行流路内のマッハ2擬似衝撃波の内部構造に関する数値解析による検討(流体工学,流体機械)

概要

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This paper describes an investigation by numerical simulation and experiment on the structure and characteristics of the multiple shock waves and turbulent boundary layer interaction, that is, pseudo-shock wave in a Mach 2 two-dimensional channel. The numerical simulation was carried out with Harten-Yee's second-order accuracy TVD scheme and Baldwin-Lomax's algebraic compressible model for turbulent flows. Good agreement between the numerical analysis and the experiment for the shape of the shock train of the pseudo-shock wave and the wall pressure distribution along the channel was obtained. Based on this agreement, the flow quantities, which are very difficult to obtained by experiment, were analyzed by numerical simulation. These analyses are very valuable for understanding of the detailed structure and characteristics of the pseudo-shock wave. The study conditions are M_∞≅2.0 (free stream Mach number), Re_∞=2.5×10^7m^<-1> (unit Reynolds number), δ_∞/h=0.25 (flow confinement), respectively.
社団法人日本機械学会の論文
2003-04-25