Abstract:

The numerical simulation computation of flow field in a conical spool valve was carried,which was based on CFD approach. The simulation results of flow field distribution under fixed condition were analyzed,and the influence of opening and structural parameters of valve port on the flow field distribution in valve port were also analyzed and compared. The results show that the fluid flows complicatedly in valve port ,the flow field distribution is uneven in the axial and radial and affected by the opening and structural parameters of valve port:optimizing the structural parameters of valve port and changing the valve opening can improve the flow field distribution in valve port,prevent the cavitation and the vortex forming and developing,reduce pressure loss and energy consumption.

Key words: CFD, conical valve port, flow field distribution, valve opening, structural parameter