测量旋涡脱落频率的实验研究  

An Experimental Investigation of Measurement of Vortex Shedding Frequencies

作　　者：王铁城[1] 

机构地区：[1]南京航空航天大学,江苏南京210016

出　　处：《空气动力学学报》1993年第3期325-328,共4页Acta Aerodynamica Sinica

摘　　要：本文提出了一种由表面摩擦测量旋涡脱落频率的方法,阐述了其原理,给出了实验研究的结果,可作为涡街式流量计测量旋涡脱落频率的一种途径。It is the purpose of this paper to report an experimental investigation of measurement of vortex shedding frequencies on a circular cylinder. The experiments were carried out in a low speed wind tunnel. Surface hot film gages were flush bitted on the surface of circular cylinder.During the test, the Reynolds number was kept constant. Hot film gages gave values of vortex shedding frequencies. The experimental results have showed that the technique of application of surface hot film gages can be used in vortex flowmeters for a way of measurement of vortex shedding frequencies.

关 键 词：测量 旋涡脱落频率 流量仪表 

分 类 号：TH814[机械工程—仪器科学与技术]