Method of Measuring Two-dimensional Wind Based on Diametrical Pressure Differences Developed by Flow Around Cylinder

LIU Cheng; ZHAO Zhan; DU Lidong; FANG Zhen

doi:10.11999/JEIT160468

Volume 39 Issue 3

Mar. 2017

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LIU Cheng, ZHAO Zhan, DU Lidong, FANG Zhen. Method of Measuring Two-dimensional Wind Based on Diametrical Pressure Differences Developed by Flow Around Cylinder[J]. Journal of Electronics & Information Technology, 2017, 39(3): 737-742. doi: 10.11999/JEIT160468

Citation:

LIU Cheng, ZHAO Zhan, DU Lidong, FANG Zhen. Method of Measuring Two-dimensional Wind Based on Diametrical Pressure Differences Developed by Flow Around Cylinder[J]. Journal of Electronics & Information Technology, 2017, 39(3): 737-742. doi: 10.11999/JEIT160468

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Method of Measuring Two-dimensional Wind Based on Diametrical Pressure Differences Developed by Flow Around Cylinder

doi: 10.11999/JEIT160468

1.
2.
(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)

Funds:

Special Fund for Public Welfare (GYHY- 201006044), The National Natural Science Foundation of China (51305423)

Received Date: 2016-05-09
Rev Recd Date: 2016-09-23
Publish Date: 2017-03-19

Abstract

Abstract

The cylindrical two-dimensional wind sensor employing flow meters is not accurate enough for surface wind measurement. By analyzing the data from wind tunnel experiments, a model is proposed to describe the diametrical pressure differences developed by the flow around a circular cylinder. A method is derived from the model for two-dimensional wind measurement by detecting the diametrical pressure differences. When the proposed method is applied to the data from wind tunnel tests in range of 2~40 m/s, the relative wind speed errors and the wind direction errors are no more than (0.2+0.03 V) m/s and 5 respectively. The proposed method is more accurate than the cylindrical two-dimensional wind sensor using flow meters. Without moving parts, the method is immune to mechanical wear and inertia.
- Two-dimensional wind measurement,
- Flow around a cylinder,
- Diametrical pressure difference,
- Wind speed and direction

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References(22)

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