超音速放射状流中の擬似衝撃波の可視化観察および数値シミュレーション (<小特集>衝撃波現象とその工学的応用)

概要

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Pseudoshocks in axisymmetric radial flows between parallel walls were observed experimentally in full circular forms, and were simulated numerically, solving the 2D-Reynolds averaged Navier-Stokes equations. The objective of this study is to investigate the structure of the circular pseudoshock and the influence of flow parameters. In the simulation, a 2nd-order-accuracy Harten-Yee TVD scheme was used for high resolution and numerical stability, and Baldwin-Lomax's algebraic model was used for turbulent flow. Both experimental and numerical results on the pressure distribution agreed well. Then the influence of parameters on the shock structure was deduced through numerical simulations.
社団法人日本機械学会の論文
1994-07-25