Numerical Simulation of a Check Valve Closure Induced by Pump Shutdown

High pressure surges induced by the sudden closure of check valves can cause severe damage to mechanical and hydraulic facilities. A three-dimensional unsteady numerical simulation of a dual disc check valve closure induced by upstream pump shutdown was performed and validated experimentally. An overset mesh was applied to achieve a full closure of the check valve discs and capture pressure surges accurately. The velocity field graphs improve …