小口径浮子流量计温度特性研究  

A research on the temperature characteristics of small caliber glass rotameters

作　　者：何馨雨[1] 朱家顺 苏中地[1] 

机构地区：[1]中国计量学院计量测试工程学院,浙江杭州310018 [2]余姚市银环流量仪表有限公司,浙江余姚315400

出　　处：《中国计量学院学报》2008年第2期119-123,共5页Journal of China Jiliang University

摘　　要：通过计算流体力学(CFD)的方法对15 mm口径的玻璃浮子流量计进行了数值仿真,给出了浮子流量计的速度场、压力场、速度矢量场以及浮子的受力;研究了温度变化对流量造成的影响,并用实验进行了比较.结果表明,数值仿真与实验结果基本吻合.In order to study the mechanism of the small caliber glass rotameters and to improve their accuracy requirement under different operating environments, numerical simulations of a 15mm caliber glass rotameter were carried out. The pressure distributions, velocity contours, velocity-vector field and the forces on the floater were presented through numerical simulations by the method of computational fluid dynamics. This paper studied the effect of varying temperatures on flow rate by computation and compared the numerical results with the experiments. Comparisons show that the simulation results agree with the experimental results well.

关 键 词：浮子流量计 数值仿真 温度变化 

分 类 号：TH814[机械工程—仪器科学与技术] O357.5[机械工程—精密仪器及机械]