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Residual heat removal pumps (RHRPs) are the key equipment in nuclear power plants, and their transient performances can sensitively affect the stability and reliability of pump system. A 1D-3D coupling methodology has been developed to investigate the instantaneous flow characteristics of the pump system during start-up period. In this methodology, the flow in the RHRPs was considered to be three-dimensional...
Residual heat removal pump (RHRP) is one of key equipments in 1000 MW nuclear power plants; its faction is to transport high temperature and pressure medium. Vibration and dynamic stress which is caused by the interaction between the fluid and structure can affect the reliability of RHRP. This paper presents an investigation of internal flow field of residual heat removal pumps, by using a combined...
The hydraulic performances as well as the cavitation phenomena in a scaled residual heat removal pump were investigated by experimental and numerical methods, respectively. In particular, a three-dimensional numerical model of cavitation with the standard k-ε turbulence model was adopted to simulate the internal cavitating flow through the model pump, and a high quality polyhedral grid was generated...
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