In this study, the characteristics of side-projected planar shock waves propagating through grid turbulence were investigated using a counter-driver shock tube. At the location of visualization of the shock–turbulence interactions, the range of the shock Mach numbers was \(M_{\mathrm {s}} = 1.01{-}1.15\) and the representative values of the turbulent Mach numbers \(\widetilde{M_{\mathrm {t}}}\) were \( 0.005{-}0.014\). The interaction length between the shock wave and grid turbulence was in the range approximately from \(-50\) to \(300\) times the integral length scale of the turbulence. For the interaction involving the strongest turbulence with \(\widetilde{M_{\mathrm {t}}} = 0.014\), the weakest planar shock wave with \(M_{\mathrm {s}} = 1.01\) was largely deformed and could not be detected on the projected shadowgraph and schlieren images. The density changes on the grayscale in the projected images of the shock waves weakened and expanded multidimensionally. This undetectable profile of the shock wave could indicate that the shock wave locally lost discontinuous property change profile. The shock waves with \(M_{\mathrm {s}} \ge 1.05\) did not show the undetectable profile in the projected image. In these cases, the projected thickness of the shock wave increased with an increase in the interaction length. The increase in the projected thickness became larger as the turbulent Mach number increased, and the shock Mach number decreased.

在这项研究中，使用反驱动激振管研究了通过格栅湍流传播的侧面投影平面激波的特性。在冲击-湍流相互作用的可视化位置，冲击马赫数的范围为\（M _ {\ mathrm {s}} = 1.01 {-} 1.15 \），湍流马赫数的代表值为\（\ widetilde {M _ {\ mathrm {t}}} \）是\（0.005 {-} 0.014 \）。冲击波与网格湍流之间的相互作用长度大约在\（-50 \）到\（300 \）乘以湍流积分长度标度的范围内。对于涉及最强湍流且\（\ widetilde {M _ {\ mathrm {t}}} = 0.014 \）的交互，\（M _ {\ mathrm {s}} = 1.01 \）的最弱平面激波发生了很大的变形，无法在投影的阴影图和schlieren图像上检测到。冲击波投影图像中灰度的浓度变化在多维上减弱和扩展。冲击波的这种无法检测到的轮廓可能表明，冲击波局部失去了不连续的特性变化轮廓。带有\（M _ {\ mathrm {s}} \ ge 1.05 \）的冲击波未在投影图像中显示出无法检测到的轮廓。在这些情况下，冲击波的投影厚度随着相互作用长度的增加而增加。随着湍流马赫数的增加，投影厚度的增加变得更大，而冲击马赫数的减少。