中文摘要：

基于标准κ-ε双方程湍流模型和SIMPLEC算法,采用Fluent软件对一台IS型离心泵内部整个三维流场,在不同工况下分别进行了定常湍流计算,并分析了不同工况下内部流动的差异性,获得了离心泵各过流部件内的流动特性,发现隔舌的存在导致泵内流动呈现非对称性。在数值模拟的基础上,得到该离心泵的性能曲线,并与试验性能曲线进行对比,结果显示两者在总体上吻合。

英文摘要：

The standard k-ε turbulence model and SIMPLEC algorithm are applied to simulate the three-dimension internal flow field incompressible turbulence flow in centrifugal pump.The internal flow under different operating conditions is analyzed and the flow feathers are revealed.According to the results obtained,the simulated performance curves of a centrifugal pump are compared with the experimental performance curves.The experimental results and simulation results show good agreement.The result of the research provides some theoretical basis for optimized design to centrifugal pump.