小型直流标定风洞的研制  

Development of Small-sized and Direct-current Calibration Wind Tunnel

作　　者：余世策[1] 胡志华[1] 冀晓华[1] 林竣[1] 蒋建群[1] 

机构地区：[1]浙江大学建筑工程学院,浙江杭州310058

出　　处：《实验室研究与探索》2014年第3期55-58,共4页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目资助(50908208);浙江大学实验技术研究重点项目资助

摘　　要：标定风洞是开展风速传感器标定的重要设备,研制了一套专门用于风速传感器标定的低风速直流风洞。对小型风洞的技术参数确定、洞体气动轮廓设计、洞体整体结构设计与制作等内容进行了介绍,并对风洞的流场进行了全面的校测。流场校验结果表明,该小型直流标定风洞的变频器输出频率与风速有良好的线性关系,出口气流的动压稳定性、均匀性较为理想,湍流度较小,表明小型直流风洞的研制是成功的,可用于风速传感器的标定。Calibration wind tunnel is important equipment for calibration of wind speed sensors. A set of low speed direct-current wind tunnels specially used for sensor calibration are developed. The determination of technical parameters of small wind tunnel,aerodynamic profile design,overall structural design and fabrication are introduced in detail,and the field flow of the wind tunnel is tested comprehensively. Results show that,the inverter output frequency and wind speed of the small-sized direct-current calibration wind tunnel have a good linear relationship,the dynamic pressure stability and uniformity of the exit flow is good,and the flow turbulence is small. The results mean the development of small-sized direct-current calibration wind tunnel is successful,and it can be used to calibrate the wind speed sensors.

关 键 词：标定风洞 气动设计 结构设计 流场校测 

分 类 号：V211.74[航空宇航科学与技术—航空宇航推进理论与工程]