NUMERICAL INVESTIGATION OF FLOW PATTERNS IN DIFFERENT PUMP INTAKE SYSTEMS  

作　　者：ZHAN Jie-min WANG Ben-cheng YU Ling-hui LI Yok-sheung TANG Ling 

机构地区：[1]Department of Applied Mechanics and Engineering,Sun Yat-sen University [2]Department of Civil and Structural Engineering,The Hong Kong Polytechnic University

出　　处：《Journal of Hydrodynamics》2012年第6期873-882,共10页水动力学研究与进展B辑（英文版）

基　　金：Project supported by of the National Marine Public Welfare Research Projects of China(Grant No.201005002);supported by the Hong Kong Polytechnic University(Grant No.H-ZG68)

摘　　要：A 3-D numerical model for pump intake is established based on the Navier-Stokes equations with the RNG k-ε turbulence model and the VOF method to simulate the free surface. The applicability of the proposed model is validated by a test case of non-symmetric pump-intake bay. The predicted locations, structures and shapes of all vortices are in good agreement with those observed in experiments, though with some differences in vorticity strengths. The flow pattern and the efficiency of five types of pump intake systems are studied. The discharge and the velocity tmiformity of the intake system are used as indices to evaluate its performance.A 3-D numerical model for pump intake is established based on the Navier-Stokes equations with the RNG k-ε turbulence model and the VOF method to simulate the free surface. The applicability of the proposed model is validated by a test case of non-symmetric pump-intake bay. The predicted locations, structures and shapes of all vortices are in good agreement with those observed in experiments, though with some differences in vorticity strengths. The flow pattern and the efficiency of five types of pump intake systems are studied. The discharge and the velocity tmiformity of the intake system are used as indices to evaluate its performance.

关 键 词：pump intake Navier-Stokes equations VOF method 

分 类 号：O35[理学—流体力学]