【作者】 廖伟丽； 覃延春； 柴胜凯； 罗兴錡；

【Author】 Liao wei-li Qin yan-chun Chai Sheng-kai Luo Xing-qi (Xi’an University of Technology, Xi’an 710048, China)

【机构】 西安理工大学；

【摘要】 本文基于N-S方程和雷诺应力微分模型,采用非结构化网格技术,用速度压力校正法在设计工况下分别对无缝隙流动模型和有缝隙流动模型的轴流泵叶轮内部的三维紊流场进行了详细的数值计算与分析,得出其内部流场、压力场的分布情况及其水力效率和考虑缝隙的容积效率。将计算结果进行处理,分别用矢量图和等值线表示其内部流动状态和压力分布,并将无缝隙模型和有缝隙流模型分析、比较得出结论。更多还原

【Abstract】 Analyzing the 3D turbulent flow field in the axial flow pump impeller is significant for improving performance and optimum design level of the pump. In this paper, the 3D turbulent flow is simulated based on Navier-Stokes equations and standard k-ε model. The turbulent flow through axial flow pump impeller is simulated by using the unstructured mesh system and the finite volume method. Calculated results are presented at the design operating condition for the impeller in detail, which give a valuable reference to improve the performance of the impeller.更多还原