基于LDV测速技术对风洞流速分布规律探索性研究  

Exploratory Research on Wind Tunnel Velocity Distribution Based on LDV Velocity Measurement Technology

作　　者：周艳 扶志勇 朱宁 冯得明 尹鑫昊 阮中 Zhou Yan;Fu Zhiyong;Zhu Ning;Feng Deming;Yin Xinhao;Ruan Zhong(Hunan Institute of Metrology and Test,Changsha 410014)

机构地区：[1]湖南省计量检测研究院,长沙市410014

出　　处：《仪器仪表标准化与计量》2024年第2期21-22,35,共3页Instrument Standardization & Metrology

基　　金：湖南创新型省份建设专项自然科学基金科市联合项目:基于LDV测速技术的现场风量测量方法及应用研究(编号:2022JJ90052);湖南省市场监督管理局科技计划资助项目:基于激光多普勒测速技术的流场风速分布研究(编号:2021KJJH50)。

摘　　要：本文采用激光多普勒测速仪(LDV)非接触式测速技术研究风洞流速分布规律,通过对不同风速段的测量,测试风洞装置的风场气流均匀性及风速稳定性,并对风洞试验段的气流流动特性进行探索性研究,对数据和图例进行了研究分析,提取有效数据值,对后续试验任务进行有效的调整和规划,为进一步研究整个风洞流速分布规律提供参考。The paper uses Laser Doppler Velocimeter(LDV)non-contact velocity measurement technology to study the distribution law of wind tunnel velocity,through the measurement of different wind speed sections,the wind field airflow uniformity and wind speed stability of the wind tunnel device are tested,and the airflow flow characteristics of the wind tunnel test section are exploratory studied,researched and analyzed on the data and legends,and extracted effective data values,effectively adjust and plan subsequent experimental tasks to provide reference for further research on the flow velocity distribution pattern of the entire wind tunnel.

关 键 词：LDV 风速 风洞 流场 流速分布 

分 类 号：V211.752[航空宇航科学与技术—航空宇航推进理论与工程]