Computational Fluid Dynamics (CFD) Analysis to Predict and Control the Cavitation Erosion in a Hydraulic Control Valve

Priyatosh Barman

doi:10.4271/2002-01-0572

2002-03-04

Computational Fluid Dynamics (CFD) Analysis to Predict and Control the Cavitation Erosion in a Hydraulic Control Valve 2002-01-0572

This paper summarizes the successful application of Computational Fluid Dynamics (CFD) analysis to predict and control the cavitation erosion in a hydraulic control valve. The accurate control of different vehicle operations demands very fine spool modulations in a hydraulic valve. The precise spool modulations create very high flow rates and high-pressure drops in the valve. The low local fluid pressure regions create cavitation inside the valve. Due to the explosion of bubbles there is a high erosion damage to the valve body as well as the spool surface. The CFD analysis has been used to predict the location of cavitation origination and also used to control the cavitation by redistributing the flow inside the valve.

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Computational Fluid Dynamics (CFD) Analysis to Predict and Control the Cavitation Erosion in a Hydraulic Control Valve 2002-01-0572

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