底层隔板法壁面剪应力测量技术研究与发展 |
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引用本文: | 马骋宇,马炳和,邓进军,周梓桐,张晗. 底层隔板法壁面剪应力测量技术研究与发展[J]. 实验流体力学, 2017, 31(2): 13-18. DOI: 10.11729/syltlx20170010 |
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作者姓名: | 马骋宇 马炳和 邓进军 周梓桐 张晗 |
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作者单位: | 西北工业大学空天微纳系统教育部重点实验室, 西安 710072 |
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基金项目: | 国家重点基础研究发展计划2015CB057400国家重大科学仪器设备开发专项2013YQ040911 |
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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。
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关 键 词: | 壁面剪应力 摩擦阻力 底层隔板 微机电系统 边界层 |
收稿时间: | 2016-12-13 |
Sublayer fence for wall shear stress measurement |
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Affiliation: | Key Laboratory of Micro/Nano Systems for Aerospace, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, China |
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Abstract: | 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. |
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