| 高速流中壁面剪应力某些测量方法 |
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| 引用本文： | 郑国锋.高速流中壁面剪应力某些测量方法[J].实验流体力学,1989(3). |
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| 作者姓名： | 郑国锋 |
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| 作者单位： | 南京航空学院 |
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| 摘 要： | 本文综述了高速流中壁面剪应力的三种测量方法——普雷斯顿管法,底层隔板法和表面热膜法。着重讨论压缩性影响。作者还用 White-christoph 壁面律,导出计及压缩性,压力梯度和壁面热传导影响的普雷斯顿管理论校准公式,又从二维可压缩边界层的能量积分关系导出了表面热膜测量所需的壁面剪应力和压力梯度、压缩性及壁面热传导率的关系式。
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| 关 键 词： | 壁面剪应力 表面摩擦应力 测量方法 普雷斯顿管法 |
MEASUREMENTS OF WALL SHEAR STRESS IN COMPRESSIBLE FLOW |
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| Cheng Guofeng.MEASUREMENTS OF WALL SHEAR STRESS IN COMPRESSIBLE FLOW[J].Experiments and Measur in Fluid Mechanics,1989(3). |
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| Authors: | Cheng Guofeng |
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| Institution: | Nanjing Aeronautical Institute |
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| Abstract: | Three methods of measuring wall shear stress in highspeed flow are reviewed in detail with the emphasis on the Compres-sibility effeet.A Calculated Preston tube calibration formula and a sur-face hot-film calibration eguation are deduced which allow the deter-mination of wall shear stress in boundary layers when these are influencedby adjustable parameters such as compressibility,adverse pressuregradient and heat transfer. |
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| Keywords: | Wall shear stress skin friction measurement method Preston tube |
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