Numerical Simulation on Hydraulic Characteristics of Spray Regulator Valve

The hydraulic properties of the internal fluid of the spray regulator valve are studied by numerical simulation. The velocity field, pressure field, flow coefficient and adjustable ratio of spray regulator valve at different opening are analyzed. The results show that the main factors affecting the flow field distribution and the maximum flow velocity inside the valve body are the valve opening and the inlet and outlet pressure difference. There is a high speed area in the narrow channel area around the valve spool, which will decrease as the valve opening decreases. The pressure in the fluid domain changes rapidly from the inlet pressure to the outlet pressure at the narrow channel around the valve core. The adjustable ratio of the spray regulator valve is 72.9.