Numerical simulation of flow field and hydrodynamic noise characteristics of marine valves
Marine valves are used to control fluid pressure,flow and flow direction in ship pipelines.Usually due to the relatively complex internal flow channel structure,it is easy to produce large turbulence noise,so it is the focus of pipeline noise.This paper selects several common Marine valves,and the internal flow field was calculated by CFD numeric-al simulation.On this basis,the hydrodynamic noise is studied,finally the distribution characteristics of flow field,sound field,flow resistance coefficient and sound pressure level which change with the flow velocity are revealed.Research conclu-sions can be used to guide the optimal design of low noise marine valves.
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