| 邱实,孙嫣,陈曦,边泽强,白贏策,任燕.风速传感器风洞校准的阻塞影响及修正方法研究[J].电子测量与仪器学报,2024,38(1):34-42 |
| 风速传感器风洞校准的阻塞影响及修正方法研究 |
| Study on obstructing influence and correction of method ofwind tunnel calibration for anemometer |
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| DOI： |
| 中文关键词: 风速传感器 阻塞 修正系数 风洞 校准 CFD |
| 英文关键词:velocity anemometer obstructing correction coefficient wind tunnel calibration CFD |
| 基金项目:山东省自然科学基金面上项目（ZR2020MD052）、山东省气象局科学技术研究项目（2020SDQN05,2021SDYD13，2022SDQXZ06）资助 |
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| Author | Institution |
| Qiu Shi | 1.Key Laboratory of Meteorological Disaster Prevention and Mitigation, Shandong Meteorological Bureau, Jinan 250031, China;
2.Shandong Meteorological Project and Technology Center, Shandong Meteorological Bureau, Jinan 250031, China;
3.Meteorological Observation Center, China Meteorological Administration, Beijing 100081, China |
| Sun Yan | 1.Key Laboratory of Meteorological Disaster Prevention and Mitigation, Shandong Meteorological Bureau, Jinan 250031, China;
2.Shandong Meteorological Project and Technology Center, Shandong Meteorological Bureau, Jinan 250031, China |
| Chen Xi | Meteorological Observation Center, China Meteorological Administration, Beijing 100081, China |
| 边泽强 | Meteorological Observation Center, China Meteorological Administration, Beijing 100081, China |
| Bai Yingce | Meteorological Observation Center, China Meteorological Administration, Beijing 100081, China |
| Ren Yan | 1.Key Laboratory of Meteorological Disaster Prevention and Mitigation, Shandong Meteorological Bureau, Jinan 250031, China;
2.Shandong Meteorological Project and Technology Center, Shandong Meteorological Bureau, Jinan 250031, China |
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| 摘要点击次数: 646 |
| 全文下载次数: 706 |
| 中文摘要: |
| 为研究阻塞现象的形成原理及其对风速校准结果的影响，建立高阻塞比和低阻塞比工况对应的气象风速校准流场仿真模型，分析不同阻塞比工况对圆柱形结构和长方体结构风洞试验段流场影响。现有理论模型和比较法使用单一的修正系数修正所有校准点风速示值，导致低风速校准点风速传感器示值修正存在偏差，针对该问题提出一种各校准点独立计算阻塞修正系数的分段修正方法。结合EC9-1型、EL15-1A型和ZQZ-TF型等常用气象风速传感器校准数据，分析分段修正法与既有理论模型和比较法对传感器测量特性的影响。实验结果表明，3种阻塞修正方法都可改善风速传感器示值误差和频率方程等测量特性，使传感器示值、频率方程的斜率和截距更接近标准风洞的校准数据，分段修正法对传感器偏离程度的改善效果最为显著，经分段修正法修正后的传感器偏离程度最接近标准风洞测得值。 |
| 英文摘要: |
| In order to study the formation principle of obstructing phenomenon and its influence on the results of wind speed calibration, this paper establishes the flow field simulation models of meteorological wind speed calibration for different blockage ratio. The influence of different blockage ratio conditions on the flow field of cylindrical and cuboid wind tunnel test section is simulated. The existing theoretical model and comparison method adopt a single correction coefficient to correct the wind speed indication value at all calibration points, which leads to deviation in the correction of low. With this in mind, a piecewise correction method is proposed to calculate the blocking correction coefficient independently for each calibration point. Combined with the anemometer calibration data of EC9-1, EL15-1A and ZQZ-TF, the influence of the piecewise correction method and the existing methods on the anemometer measurement characteristics of is compared. The experimental results indicate that the three obstruction correction methods can improve the measurement characteristics of anemometer, such as measurement error and frequency equation, which makes the indexes of slope, intercept, indicating value and frequency equation of anemometers are closer to the calibration data in standard wind tunnel. The piecewise correction method has the most significant effect on improving the overall deviation degree of the three types of anemometers. The deviation degree of the anemometer corrected by the piecewise correction method is closest to the value measured by the standard wind tunnel. |
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