Simulation of Hydraulic Controllable Shut off Valve Based on Dynamic Mesh Technology

Presented the design scheme of the controllable shut off valve according to the real condition of drainage system.Geometric model and mathematic model of the hydraulic controllable shut-off valve were built by using FLUENT dynamic mesh technology,the numerical simulation to its internal flow field was carried on,and the analog result was analysed.From the analysis results,can see that,when the valve's closure or open velocity is bigger than 0.01 m/s,the phenomenon of pressure fluctuation and the water hammer would occur easily.