Development of planar doppler velocimetry system of shock-wave/boundary layer interaction

本文提出了一种基于PDV（Planar Doppler Velocimetry）方法的激波/边界层相互作用速度测量系统，并应用于等截面管道中激波/边界层相互作用速度场的测量，验证了该测量系统的有效性。在实验结果中，可以很好地捕捉到正激波和再加速区的速度突变。此外，测量的速度分布同意定量计算的，它被发现，本系统是有用的激波/边界层相互作用的速度测量。

In the present work, the velocimetry system of a shock-wave/boundary-layer interaction using PDV (Planar Doppler Velocimetry) method is suggested and the effectiveness of the measurement system is verified by applying to measure the velocity field of a shock-wave/boundary-layer interaction in a constant area duct. In the experimental result, a velocity jump at a normal shock wave and a reaccelerate region can be captured well. Additionally, the measured velocity distribution agrees quantitatively with the computed one and it is found that the present system is useful for the velocity measurement of a shock-wave/boundary-layer interaction.