Simulation of High Pressure Water Jet Nozzle Based on CFD
The flow field and pressure distribution in the high pressure water jet nozzle required for secondary side flushing of the steam generator in nuclear power plant are simulated by using the two-phase flow model of the mixture model.The two-phase flow model is calculated by finite element method,and the distribution of flow field and pressure field is obtained.It can be seen from the flow field distribution that when it is away from the central axis of the high-pressure water jet nozzle,the flow field distribution in the high-pressure water jet gradually decreases.The flow field is the largest at the central axis of the high-pressure water jet nozzle.When the inlet pressure of the high-pressure water jet nozzle gradually increases from 40MPa to 46MPa,the flow field at the outlet gradually increases from 289.502m/s to 312m/s.It can be seen that,within a certain range,the inlet pressure has a significant effect on the increase of the outlet velocity.
high pressure water jetfinite elementsteam generatortwo phase flow
NETL
NSTL
万方数据
