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发表时间：2022-10-09

发表刊物：流体机械

期号：9

页面范围：19-24

ISSN号：1005-0329

摘要：The shear stress transport ( SST) k-ωturbulent models and detached eddy simulations were used in steady and un-steady 3-dimensional numerical simulation to investigate the influence of uneven guide blade on performance and pressure fluctua-tion of nuclear model pump. Two model's performance curves and pressure fluctuation were gotten,and both time and frequency domain of pressure fluctuation were analyzed. It is shown that,the flow condition at the outlet is improved with a specific configu-ration of uneven guide blade,and the performance of multiple operating conditions is promoted. Effects of uneven guide blade on pressure fluctuation in different area of model pump are of their own features. But the frequency and amplitude which Caused by rotor-stator interaction are changed and decreased. It helps to reduce the vibration and noise,improve the safety of nuclear main pump.

备注：新增回溯数据