Cavitation Effect to the Hydraulic Piston Pump Flow Pulsation

Abstract

The flow pulsation is one of the main factors, which affect the performance of water hydraulic piston pump, and cavitation also has importance effect on flow pulsation. In this paper, CFD technology is used to simulate visually the porting process，which causes the flow pulsation in water hydraulic axial piston pump. As a result, the flow pulsation rates and other parameters on fluid-field corresponding to different rotary speed and different loading are obtained respectively when cavitation is considered and not, which can present theoretic references for the development of water hydraulic pump.