|
|
Body-fitted grid generation in double-channel pump impeller and CFD analysis |
ZHAO Bin-juan1, YUAN Shou-qi2, LIU Hou-lin2, HUANG Zhong-fu3, TAN Ming-gao2 |
1.School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.Technical and Research Center of Fluid Machinery Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 3.School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China |
|
|
Abstract Based on the differential equation method,a body-fitted grid generation code was developed for the 3-D body-fitted structured grids.Laplace equation with additional source terms was employed,and source terms were built according to Thompson and Sorenson′s thought by interpolation of exponential function.With the grid generated by this method,the turbulent inner flow within the double-channel impeller was calculated.It is concluded that the grid has good quality to improve the efficiency and precision of inner flow calculation within the double-channel impeller,its size can be human controlled,and grid lines are orthogonal to boundary walls to feed in turbulent wall boundary conditions conveniently.After approp-riate adjustment,the code can also be used to generate the mesh of other irregular flow channels.
|
Received: 08 August 2013
|
|
|
|
[1] 杨敏官,刘栋,贾卫东.离心泵叶轮内部三维湍流流动的分析[J].江苏大学学报(自然科学版),2006,27(6):524-527[2] Rudolf S.Numerical simulation of the two-phase flow in centrifugal pump impellers[J].Journal of Fluids Engineering,2001,123(1):1-6[3] Liu Q Q,Singh V P.Closure to "Fluid-solid interaction in particle-laden flows"[J].Journal of Engineering Mechanics,2006,132(4):464[4] 李仁年,徐振法,韩伟.渣浆泵内部流场数值模拟与磨损特性分析[J].排灌机械,2007,25(2):5-8[5] 陈池,袁寿其,郑铭.离心泵叶轮三维贴体网格生成[J].农业机械学报,2000,31(4):50-53[6] 李昳,袁寿其,何朝辉.无堵塞泵叶轮三维贴体网格生成[J].机械工程学报,2002,38(2):104-107[7] 袁寿其,何有世,黄良勇.带分流叶片的离心泵叶轮三维贴体网格生成[J].农业机械学报,2004,35(6):69-71[8] Thompson J F,Warsi Z U A,Mastin C W.Numerical Grid Generation[M].New York:North-Holland,1985[9] Tourlidakis A.Numerical modeling of viscous turbo-machinery flows with a pressure correction method[D].England:Cranfield University,1992[10] 赵斌娟.双流道泵内非定常三维湍流数值模拟及PIV测试[D].镇江:江苏大学,2007[11] 杨敏官,刘栋,顾海飞.盐析固液两相流场的PIV测量方法[J].江苏大学学报(自然科学版),2007,28(4):324-327[12] 陈次昌,杨昌明,熊茂涛.低比转速离心泵叶轮内固液两相流的数值分析[J].排灌机械,2006,24(6):1-3 |
|
|
|