调节阀内部流场的数值模拟与试验分析

对某一广泛应用的套筒型调节阀内部流场建立模型.通过前处理器生成计算网格,应用CFD软件进行离散求解,得到调节阀内部流场的可视化图形,数值模拟不同开度下流量,绘出调节阀的流量特性曲线,与试验测定的数据进行比较分析.结果表明模拟值与试验值较好的吻合,为后续优化和设计工作提供依据.

Numerical simulation and experimental analysis of interior flow field in control valves

Three-dimensional modeling software was used to establish interior flow field model of a generally used bush-type control valves.Visualized graphs of inner flow field in the control valve were obtained by means of a preprocessor to generate computational grids and the CFD software to perform discrete solution.The flow characteristic of the control valve was obtained with numerical simulation of the flow-rate for different openings.It was shown by the comparison of the simulation data to those of experimental measurement that the former was well consistent with the latter,providing a basis for further optimization and design of the control valves.