基于圆柱绕流直径压强差的二维风测量方法

刘成; 赵湛; 杜利东; 方震

doi:10.11999/JEIT160468

基于圆柱绕流直径压强差的二维风测量方法

doi: 10.11999/JEIT160468

2.
(中国科学院电子学研究所北京 100190) ②(中国科学院大学北京 100049)

基金项目:

公益行业专项（GYHY201006044），国家自然科学基金(51305423)

计量
- 文章访问数: 1120
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- 被引次数: 0
出版历程
- 收稿日期: 2016-05-09
- 修回日期: 2016-09-23
- 刊出日期: 2017-03-19

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

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)

摘要

摘要: 基于流量传感器的圆柱结构2维风传感器，其测量性能对地面风测量而言不够准确。由此，该文通过分析风洞实验数据，建立一种数学模型来描述圆柱绕流中直径两端压强差的分布，并根据该模型提出一种通过检测该直径压强差来计算风速风向的2维风测量方法。对风洞测试数据应用该方法，在2~40 m/s风速范围内，风速计算值误差不超过(0.2+0.03 V) m/s，风向计算值误差不超过5。相比使用流量传感器的圆柱结构2维风传感器，该方法提高了测量准确度。同时，该方法不需要转动部件，不受机械摩擦和惯性的制约，需要占用的空间小。
- 2维风测量 /
- 圆柱绕流 /
- 直径压强差 /
- 风速风向
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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参考文献(22)

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