Journal of Dynamic Systems Measurement and Control · 1994 · 38 citations · 0 references
EngineeringMechanical EngineeringComputational Fluid DynamicsHydraulic EngineeringHydraulicsCavitationHydraulic MachineryHydraulic Pumping SystemsHydraulic SystemsAxial-flow PumpsPiston PumpsPump CavitationPump DesignPump Performance ModelingPumpsSimulation StudiesSuction Flow Dynamics
Suction dynamics of axial piston pumps become critical at high speeds, requiring higher boost pressures to prevent air‑release and cavitation, yet data gaps hinder design of suitable boost conditions and portplate configurations. The study investigates the suction performance of high‑speed axial‑piston pumps through experimental and simulation analyses. The authors evaluate various air‑release and cavitation models for simulating high‑speed axial‑piston pump suction dynamics. Experimental and simulation results demonstrate the suction behavior of high‑speed axial‑piston pumps.
The suction dynamics of axial piston pumps become more critical if the pump is to be used at high speeds. In order to prevent air-release and cavitation from occurring within the pump it is necessary to pressurise the pump inlet. As the speed of a pump is increased, higher boost pressures are required, due to the extra losses incurred through the suction line and portplate at the higher flowrates. However, the lack of data regarding axial piston pump behavior at high speeds creates problems for the system designer in selecting suitable boost conditions and for the pump designer in selecting the portplate configuration that is required to reduce fluid-borne-noise levels. This paper discusses the suction performance of piston pumps, and presents experimental and simulation results exploring the behavior of a high-speed axial-piston pump. Different air-release and cavitation models that are suitable for simulation studies are investigated.