摘要
应用计算流体动力学(CFD)方法,利用"浮子受力平衡度误差分析法"逐步调整入口流速,控制计算精度,对锥管浮子流量计的三维湍流流场进行数值计算,设计出满足设计目标要求的大口径、大流量的金属锥管浮子流量计.为了进一步验证仿真数据的准确性,建立了与实验用流量计结构参数、浮子高度完全相同的6个流量点数值计算模型.物理实验和数值计算数据对比表明,数值计算获得的各流量点的均方根误差仅为1.42%,可以用CFD方法设计浮子流量计的结构参数.
Metal cone rotameter with large diameter and large flow range that could meet the objective requirements was designed with computational fluid dynamics（CFD）method and float force balance error analysis method,which controlled the computational precision and conducted numerical calculation of the 3D turbulence flow field of the cone rotameter by adjusting the inlet velocity.In order to further validate the accuracy of simulation data,numerical calculation models for the six traffic points,which had the same stroke and structural parameters as the rotameter in the experiment,were established.Comparison between the results of the physical experiment and numerical computation indicates that the root mean square error of the various traffic points in numerical calculation is only 1.42%.Therefore,CFD method can be used to design the structural parameters of rotameter.
出处
《天津大学学报》
EI
CAS
CSCD
北大核心
2010年第9期804-809,共6页
Journal of Tianjin University(Science and Technology)
关键词
计算流体动力学
大口径
浮子流量计
结构参数
大流量
computational fluid dynamics
large diameter
rotameter
structural parameter
large flow
