恒温式热线风速仪试制及试验验证  

Trial Production and Test Verification of Thermostatic Hot-wire Anemometers

作　　者：杜海 陈朔 李正彬 DU Hai;CHEN Shuo;LI Zhengbin(School of Aeronautics and Astronautics,Xihua University,Chengdu 610039 China;Engineering Research Center of Intelligent Air-Ground Integration Vehicle and Control(Xihua University),Ministry of Education,Chengdu 610039 China;School of Energy and Power Engineering,Xihua University,Chengdu 610039 China)

机构地区：[1]西华大学航空航天学院,四川成都610039 [2]西华大学智能空地融合载具与管控教育部工程研究中心,四川成都610039 [3]西华大学能源与动力工程学院,四川成都610039

出　　处：《西华大学学报（自然科学版）》2023年第6期26-33,共8页Journal of Xihua University:Natural Science Edition

基　　金：国家自然科学基金项目(51806181);翼型、叶栅空气动力学重点实验室基金项目(614220121030205)。

摘　　要：热线风速仪是空气动力学领域常用的流体测速设备,但是其受限于高昂的成本没有在国内得到广泛使用。为此,文章基于对流换热理论,设计了一种低成本的恒温式热线风速仪,其动态响应频率高达15 kHz且平均测量误差低于0.03%。通过对平板湍流度及边界层速度型的测量试验,验证了该设计是可行的。Hot-wire anemometer is a commonly used to measure fluid velocity in the field of aerodynamics,but it is not widely used in China due to its high cost.Based on the theory of convective heat transfer,a low-cost constant temperature hotwire anemometer is designed in this paper.Its dynamic response frequency is as high as 15 kHz and the average measurement error is less than 0.03%.The feasibility of this design was verified by measuring the turbulence intensity and boundary layer velocity of the plate.

关 键 词：热线风速仪 风洞标定 速度测量 湍流度 边界层 

分 类 号：V211.72[航空宇航科学与技术—航空宇航推进理论与工程]