摘要
提出了一种采用导光管和测量体反射镜的激光多普勒测速(LDV)新方法,成功测得了游泳机主流区的流速和速度分布,以及游泳机的速度控制特性,为检验和评价游泳机的技术性能指标提供了依据,对自由水面下的流速测量也有参考价值。
A new method of the laser Doppler velocimetry(LDV)by using the light-guide tube and measuring body reflector is proposed.This paper provided a new LDV method with two light guide tubes and a reflection mirror for the measuring volume.The flow velocity and velocity distribution in the main flow region of the swimming machine and the speed control characteristics of the swimming machine are successfully measured,which provides a basis for testing and evaluating the technical performance index of the swimming machine,and also has reference value for the velocity measurement under the free surface.
作者
牛洪涛
李治明
沈熊
Niu Hongtao;Li Zhiming;Shen Xiong(Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China;Beijing Feilijia Technology Service Inc.,Ltd.,Beijing 100084,China)
出处
《实验技术与管理》
CAS
北大核心
2018年第9期55-58,共4页
Experimental Technology and Management
关键词
游泳机
波浪水流
速度特性
激光多普勒测速
swimming machine
wave flow
velocity characteristics
laser Doppler velocimetry
