实验流体力学2013，Vol.27Issue(1)：65-71,101,8.
U形渠道机翼形量水槽水跃数值模拟与试验研究
Numerical simulation and experimental research of hydraulic jumps on the airfoil-shaped measuring flume in U-shaped canal
摘要
Abstract
Measuring flume is a common water measuring device which is designed for irrigation. The characteristics of hydraulic jump is one of the important indexes to judge whether the selected shape is suitable. This paper discussed the last stage of irrigation canal renovation project in a certain small irrigation area as an archetype, with two different experimental conditions, computed by the turbulence mathematical model tracking the free surface of liquid based on Tru-VOF method and realized mesh optimization based on Favor. We also simulated the water jump in U-shaped canal airfoil-shaped flume in three dimensions, and analyzed the hydraulic characteristics such as time-averaged flow field, conjugate depth, occurring position, jump length, distribution of hydraulic velocity in cross section and the loss of energy of hydraulic jump section. We verified simulation results by using experimental data of hydraulic model test whose ratio archetype is 1:1. The results of experimental and the computational model are consistent. In the end, we analyzed the conjugate depths of experimental data and simulation results, and inferred the approximate calculation formula of conjugate depths for U-shaped canal airfoil-shaped flume. This research provides some basic advice and suggestions on the application of airfoil-shaped flume in irrigated area in last stage of canal system in plain with gentle slope.关键词
U形渠道/机翼形量水槽/水跃/Flow-3D软件/数值模拟Key words
U-shaped canal/airfoil-shaped measuring flume/hydraulic jump/Flow-3D/numerical simulation分类
建筑与水利引用本文复制引用
孙斌,吕宏兴,张宽地,石喜,DINH Thi Huong,周亚森..U形渠道机翼形量水槽水跃数值模拟与试验研究[J].实验流体力学,2013,27(1):65-71,101,8.基金项目
国家自然科学基金(41001159) （41001159）
高校博士点基金(20090204110019) （20090204110019）
陕西省自然基金(2011JQ5004) （2011JQ5004）
