基于CFD的前置导叶轴流泵通用特性曲线预报  

General characteristic curve forecast for axial flow pump with front guide vane by CFD

作　　者：戴原星[1] 王立祥[1] 

机构地区：[1]中国船舶及海洋工程设计研究院,上海200011

出　　处：《船舶》2013年第5期1-5,共5页Ship & Boat

摘　　要：通过求解由RNG k-ε二方程湍流模型封闭的相对定常雷诺时均方程,对初始设计的前置导叶轴流泵进行全三维数值模拟,得到通用特性曲线。分析设计工况点是否在最佳效率处,设计点是否成功。捕捉前置导叶轴流泵内流场,观察导叶预旋是否到位,尾流场是否有旋流。所得的结果对初始设计的前置导叶轴流泵的改进和优化具有十分重要的意义。Based on the solution of relative steady time-averaged Reynolds equation enclosed by the RNG k-εtwo-equation turbulence model,general characteristic curve for axial flow pump with front guide vane has been drawn out by full 3D numerical simulation during preliminary design. The design point is evaluated by analysis whether the design operation point has optimal efficiency. The internal flow field is captured to observe whether the prerotation reaches proper position and whether there is rotational flow in the wake. The results have important significance for improvement and optimization of axial flow pump with front guide vane during the preliminary design.

关 键 词：轴流泵 前置导叶 喷水推进 数值模拟 湍流模型 

分 类 号：U664.3[交通运输工程—船舶及航道工程]