【作者】 孔繁余； 吕毅； 黄建军； 孙建；

【Author】 KONG-Fanyu, LV-Yi, HUANG-Jianjun, SUN-Jian (Research Center of Fluid Machinery, Jiangsu University, Zhenjiang 230031,China)

【机构】 江苏大学流体机械工程技术研究中心；

【摘要】 在泵叶轮进口前置变螺距诱导轮能有效地提高泵机组的抗汽蚀性能。但目前尚缺乏对变螺距诱导轮内部流态的研究。基于CFD技术,采用Fluent软件对变螺距诱导轮几何建模、选定边界条件等,进行其内部流场数值模拟计算。结合变螺距诱导轮的实例,给出了变螺距诱导轮内部速度与压力的分布情况以及粒子流动迹线图,得到了其内部流场的主要特征。变螺距诱导轮的数值模拟具有重要的理论和应用价值。更多还原

【Abstract】 A inducer set before the inlet of the impeller can reduce the cavitation efficiently , however, it is lack of research in the fluid field about the variable pitch inducer ( simplified VPI)at present. Based on CFD technical and Fluent program, the fluid field about variable pitch inducer are numerical simulated. Related to the example of the variable pitch inducer, in it, the distribution of velocity and pressure are taken out and the trace of the particle are plot and the main characteristic of the interior fluid field are described. Numerical simulation play a important part in theory research and practice.更多还原