| 用热线测量近壁区的流速分布 |
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| 引用本文： | 周兴华,周建和.用热线测量近壁区的流速分布[J].实验流体力学,1996(1). |
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| 作者姓名： | 周兴华 周建和 |
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| 作者单位： | 天津大学 |
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| 摘 要： | 对近壁流动或称粘性次层流动的研究有着十分重要的意义［１］，因为许多重大难题如：湍流边界层的结构、固体表面与流体之间的传质传热、人工减阻的机理等问题均与其密切相关。本文着重叙述用热线风速仪测量极近因壁区的流速分布及存在的问题，并进行讨论。
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| 关 键 词： | 热线测速 粘性次层 桥路电压 附加热量损失 |
MEASUREMENTS OF VELOCITY DISTRIBUTION NEAR THE WALL WITH HOT WIRE ANEMOMETER |
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| Zhou Xinghua,Zhou jianhe.MEASUREMENTS OF VELOCITY DISTRIBUTION NEAR THE WALL WITH HOT WIRE ANEMOMETER[J].Experiments and Measur in Fluid Mechanics,1996(1). |
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| Authors: | Zhou Xinghua Zhou jianhe |
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| Institution: | Tianjin University |
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| Abstract: | Velocity distribution and flow structures in the sublayer of the boundary layer are related to many interesting problems,eg.turbulent structures in boundary layer,heat and mass transfer in the wall region,mechanism of artificial drag reduction, etc.In this paper,the velocity distribution in the vicinity of the wall are measured with hou wire anemometer.The practical difficulties and their solutions are discussed. |
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| Keywords: | Hot Wire Anemomtry viscous sublayer bridge voltage additional heat loss |
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