基于CFD的双三角形节流槽液压滑阀阀口稳态液动力的仿真分析

Simulation Analysis of Steady Flow Force for Hydraulic Spool Valve Double Triangle Slot Valve Port Based on CFD

选取双三角形节流槽液压滑阀作为研究对象,运用软件STAR-CD对该阀内的流场进行仿真计算,得到该滑阀在不同阀口开度时的稳态液动力数值,计算结果表明:在该双三角形节流槽液压滑阀阀口的流入和流出方向,稳态液动力均让阀口趋于关闭,其数值在流出方向略大于流入方向,且射流角变化微小,稳态液动力随着流量增加而增加。

The Double Triangle slot hydraulic spool valve is selected as the research object,and the flow field in the double triangle slot hydraulic spool valve is simulated by using the fluid simulation software STAR-CD,the results show that in the inlet and outlet directions of the valve,both the steady-state hydrodynamic force makes the valve port close,the hydrodynamic force value is slightly larger in the outflow direction than in the inflow direction,and the change of the jet angle is slight,the hydrodynamic force increases as the flow rate increases.