変調密度場を通過する衝撃波背後流れ場のCFDによる現象理解

抄録

For the comprehension of the flow filed behind the shock wave interacted with the discharge field, the deduction of the flow properties behind the shock wave based on the experimentally obtained visualized data is one of the promising methods. In this method, the shock angle can be estimated from the visualization data, and then the deflection angle and the velocity component can be deduce based on the oblique shock wave theory in the compressible fluid dynamics. For the development of this method, the assessment of the deduction accuracy is inevitable. In this study, by using the numerical simulation, we tried to assess the deduction method. As a result, it was suggested that some kind of the average operation should be imposed for the estimation of the shock angle from the shock wave configuration data.