摘要
通过对一种新型极低比转数旋喷泵的研究分析,采用连续方程、动量方程、交错网格和Simplec算法求解,对旋喷泵矩形叶轮在相对坐标系下和转子腔、集流管在绝对坐标系下的内部流动分别进行全三维数值模拟.通过分析研究旋喷泵内部流动规律得出转子腔及集流管内部流动的速度场、压力场的分布规律并比较3种模型的优劣,为旋喷泵设计和能量损失分析提供理论依据.研究结果可以用于旋喷泵的性能预测以及集流管的优化设计.
A new roto-jet pump with extremely-low specific speed was investigated and analyzed. And then the continuity equation, momentum equations, staggered grid and SIMPLE algorithm were applied to conduct the full three-dimensional numeric simulations of the internal flow in the rectangular impellor in relative coordinates system and that in the collecting pipe and rotor cavity in absolute coordinates system, respectively. By analyzing and investigating the roto-jet pump flow, the distribution patterns of velocity field and pressure field in the collecting pipe and rotor cavity were obtained. The merit and drawback of three models were compared with each other, so that a theoretical basis was provided for the jet pump design and energy loss analysis. The investigation result can be used {or predicting the performance of rotojet pumps and conducting optimization design of their collecting pipe.
出处
《兰州理工大学学报》
CAS
北大核心
2009年第6期51-55,共5页
Journal of Lanzhou University of Technology
基金
温州市永嘉县科技基金项目的资助(2007115)
关键词
旋喷泵
矩形叶轮
集流管
转子腔
数值模拟
roto-jet pump
rectangular impeller
collecting pipe
rotor cavity
numerical simulation
作者简介
刘宜（1955-），男，甘肃兰州人，高级工程师．
