|
|
|
| Numerical calculation of cavitation for inner flow field of variable-pitch inducer |
| YUAN Dan-qing, LIU Ji-chun, CONG Xiao-qing, WANG Guan-jun |
| School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China |
|
|
|
|
Abstract The design method of inducer was introduced to get some main parameters of IH65—50—160 pump inducer.The Euler multiphase flow model,the standard k-ε turbulent model and three-dimensional non-structural tetrahedral mesh were adopted to calculate the three-dimensional flow field for the variable-pitch inducer to obtain the distributions of pressure and phases of inner flow field.The simulated results show that,arc impeller blade inlet can improve the operation conditions of inducer inlet and the anti-cavitation performance of itself.Based on the analyses of impeller outlet pressure fluctuations and inlet gas share rise,the causes of channel vortex are outlined.The study probides reference for improving the design and optimizing the hydraulic design of inducer.
|
|
Received: 08 August 2013
|
|
|
|
| [1] 崔宝玲.高速诱导轮离心泵的理论分析与数值模拟[D].杭州:浙江大学,2006[2] ZHU Zu-chao,XIE Peng,OU Guo-fu.Design and experimental analyses of small flow high-head centrifugal-vortex pump for gas-liquid two-phase mixture[J].Chinese Journal of Chemical Engineering,2008,16(4):528-534[3] 李仁年,陈冰,韩伟.变螺距螺旋离心泵叶片型线参数方程的分析[J].排灌机械,2007,25(6):1-3[4] Coutier-Delgosha O,Morel P,Fortes-Patella R.Numerical simulation of turbopump inducer cavitating behavior[J].International Journal of Rotating Machinery,2005(2):135-142[5] 黄建德,谷传纲.诱导轮形状对汽蚀特性的影响[J].航空动力学报,2000,15(2):142-146[6] (C)dina M.Detection of cavitation phenomenon in a centrifugal pump using audible sound[J].Mechanical Systems and Signal Processing,2003,17(6):1335-1347[7] Kiris C C,Kwak D,Chan W.High-fidelity simulations of unsteady flow through turbopumps and flowliners[J].Computers and Fluids,2008,37(5):536-546[8] 关醒凡.现代泵技术手册[M].北京:宇航出版社,1995[9] 孙建,孔繁余,焦其斌.变螺距诱导轮的设计步骤及参数选择[J].流体机械,2006,34(4):19-37 |
|
|
|
