The paper presents results of experimental study for a flow on the windward side of a swept wing with disturbance generators installed on the surface. These generators are 3D roughness elements with the height comparable to the boundary layer thickness. The method of liquid crystal thermography was used for studying the impact of roughness elements with different heights on the boundary layer. There exists a zone of maximal susceptibility of the flow to the disturbance generated past the roughness element on the wing surface.

中文翻译：

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流过后掠翼模型的3D粗糙度元素

本文介绍了在表面安装扰动发生器的后掠翼上风流的实验研究结果。这些生成器是3D粗糙度元素，其高度与边界层厚度相当。用液晶热成像法研究了不同高度的粗糙度元素对边界层的影响。在机翼表面，气流对经过粗糙元件产生的扰动具有最大的敏感性区域。