底层隔板法壁面剪应力测量技术研究与发展

摘要

介绍了机械式底层隔板测量流体壁面剪应力的基本原理.重点阐述了基于微机电系统(MEMS)的微型底层隔板的集成化结构及其工作原理,介绍了其研究发展及测试应用情况.最后,简要分析了常规剪应力微传感器在高温测试方面的弊端,并结合已有高温摩阻测试研究,提出了未来壁面剪应力测量技术的发展方向.%This paper is a review of the sublayer fence for wall shear stress measurements in the turbulent boundary layer.A summary is presented of the main techniques for determining the skin friction that makes the sublayer-fence gauge an attractive approach for use in such environments.The directional surface-fence gauge for three-dimensional turbulent boundary layer measurements is also introduced.The micro sublayer fence utilizing Micro Electro-Mechanical Systems (MEMS) technology is a promising approach, and many concepts have been proposed.Finally, challenges faced in the development of process techniques are also outlined.