EFFECT OF DISCHARGE RATIO ON FLOW CHARACTERISTICS IN 90°EQUAL-WIDTH OPEN-CHANNEL JUNCTION

作     者：ZHANG Ting XU Wei-lin WU Chao ZHANG Ting College of Civil Engineering,Fuzhou University,Fuzhou 350108,China State Key Laboratory of Hydraulics and Mountain River Engineering,Sichuan University,Chengdu 610065,China XU Wei-lin,WU Chao State Key Laboratory of Hydraulics and Mountain River Engineering,Sichuan University,Chengdu 610065,China

作者机构：College of Civil Engineering Fuzhou University Fuzhou 350108 China State Key Laboratory of Hydraulics and Mountain River Engineering Sichuan University Chengdu 610065 China 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2009年第21卷第4期

页      面：541-549页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 0807[工学-动力工程及工程热物理] 081502[工学-水力学及河流动力学] 0815[工学-水利工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Basic Research Program of China (973 Program, Grant No. 2007CB714705) the National Science Foundation of Fujian Province (Grant No. E0710013) 

主　　题：κ- ω turbulent model open-channel junction separation zone secondary current 

摘      要：For the 90° equal-width open-channel junction flow, the Reynolds averaged Navier-Stokes equations are solved while using the 3-D κ- ω model. The mean flow pattern and the secondary current are obtained. The model is validated by experimental data, and then applied to investigate the effect of the discharge ratio on the shape of separation zone shape, the cross-sectional mean flow angle and the contraction coefficient. The results are fairly close to those of the prior studies. The numerical modeling is both less time-consuming and less expensive to obtain the various flow parameters needed for engineering design.