叶片扩压器内两相流场的数值计算  

Calculation of two-phase flow field in impeller

作　　者：曾卓雄[1] 刘文红[2] 姜培正[2] 

机构地区：[1]南昌航空工业学院,江西南昌330034 [2]西安交通大学,陕西西安710049

出　　处：《水动力学研究与进展（A辑）》2002年第5期631-637,共7页Chinese Journal of Hydrodynamics

摘　　要：以协变物理速度分量作为求解变量 ,在压力修正方程中考虑了密度及浓度修正的影响 ,完成了叶片扩压器内部的两相流场的数值计算。并比较了不同型面、不同叶片出口角的扩压器性能的好坏。The pressure correction equations of particle kinetic pressure and fluid pressure were derived in which the corrections of particle volumetric fraction and fluid concentration were considered. The principle of momentum interpolation was applied to the covariant physical velocity components, which were chosen as the dependent variables in the simulation of the two-phase flow field of impeller. And comparisons of performances for different kinds of impellers were conducted.

关 键 词：叶片扩压器 喷管 密相 两相流 

分 类 号：O357[理学—流体力学]