SCALE EFFECTS OF AIR-WATER FLOWS IN STILLING BASIN OF MULTI-HORIZONTAL SUBMERGED JETS

作     者：CHEN Jian-gang ZHANG Jian-min XU Wei-lin WANG Yu-rong CHEN Jian-gang,ZHANG Jian-min,XU Wei-lin,WANG Yu-rong State Key Laboratory of Hydraulics and Mountain River Engineering,Sichuan University,Chengdu 610065,China

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

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

年 卷 期：2010年第22卷第6期

页      面：788-795页

核心收录：

学科分类：081504[工学-水利水电工程] 082903[工学-林产化学加工工程] 08[工学] 0829[工学-林业工程] 0815[工学-水利工程] 082201[工学-制浆造纸工程] 0822[工学-轻工技术与工程] 

基　　金：Project supported by the National Key Basic Research Program of China (973 Program,Grant No. 2007CB714105) the Science Foundation of Ministry of Education of China (Grant No. 2008108111) the Program for New Century Excellent Talents in University (Grant No. NCET-08-0378) 

主　　题：multi-horizontal submerged jets Xiangjiaba hydropower station scale effects experimental investigation hydraulic characteristics 

摘      要：A series of experiments were carried out on multi-horizontal submerged jets with four different model scales of 1：36, 1：57, 1：80, 1：200. In routine tests, scale effects have to be considered, due to complex vortex structure and strong air entrainment in stilling basin. Our focus was laid on measuring and analyzing the time-averaged pressure distribution, water depth and closed-to-bed velocity in the stilling basin of multi-horizontal submerged jets. The experiments results show that the model scale has but a slight effect on the time-averaged hydraulic characteristics in the stilling basin of multi-horizontal submerged jets, which indicates that the results of time-averaged hydraulic characteristics for a normal pressure model are reliable. However, the scale effects of air entrainment, fluctuation pressure and vortex structure call for further investigations in order to make the results of experiments serve as scientific references for practical engineering.