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完善了螺旋离心泵叶轮的曲面方程，使其与三维网格的自动生成和三维流场的数值模拟相适应；基于对泵内流动与油流试验结果的分析，提出和建立了非规则叶轮曲面方程。作为实例，针对规则叶轮流道生成了三维非均匀网格
The surface equation of the screw centrifugal pump impeller is improved, which is adapted to the automatic generation of three-dimensional grid and the numerical simulation of three-dimensional flow field. Based on the analysis of the flow in the pump and the oil flow test results, the irregular impeller surface equation. As an example, a three-dimensional non-uniform grid is generated for a regular impeller runner