基于CFD方法的阀测试管路设计

Valve test pipeline design based on CFD method

采用计算流体力学(CFD)方法对加装整流器前、后各种管径管道内湍流流场进行数值仿真计算。研究了整流器对管道流动的整流效果。通过对比加装整流器前、后流场速度、湍流度分布,确定整流后管路中测试阀门的安装高度。结果表明:加装整流器能够有效改善流场品质,使得符合测试阀门安装要求的位置明显降低,对实际管路设计具有重大意义。

Turbulent flow field in pipeline before and after adding rectifier was simulated using computational fluid dynamics （CFD）, rectifying effect on pipe flow was studied. Through comparing flow velocity, turbulivity distribution before and after adding rectifier, installation height of test valve after rectifica- tion was identified. The results showed that rectifier could im- prove flow quality effectively,lower installation position of test valve, and be of great significance for actual pipe design.