溢洪道中墩水翅的数值模拟  

Numerical simulation research on water wings in end of spillway middle pier

作　　者：郭瑾瑜[1] 王均星[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2013年第5期572-576,共5页Engineering Journal of Wuhan University

摘　　要：采用Realizable k-ε模型和VOF多相流方法,对溢洪道引水渠、溢流堰和泄槽段进行三维数值模拟.分析了中墩尾部水翅的成因与影响因素.对平尾墩、半圆形尾墩、椭圆形尾墩和斜尾墩4种中墩尾部体型设计方案的数值计算结果进行对比分析,确定斜尾墩设计方案为最优方案.对平尾墩、斜尾墩体型设计方案,采用物理模型试验进行验证.结果表明,数值模拟结果和物理模型试验结果相符,增设斜尾墩的优化方案能够较好地解决溢洪道中墩水翅问题.A three-dimensional two-phase flow el and volume of fluid （VOF） model for simula charging section of the spillway are developed. model based on Realizable k-ε two-equation turbulence mod ting the flow field in diversion canal, overflow weir and dis The causes and influencing factors for water wings are ana lyzed. Comparing the shapes of Hirao pier, semi-c pier tail shape is optimized for reducing water wing is chosen as the optimization with the physical model test of the middle pier. scheme. The results ircular tail pier, s in the end of th show the results results, and inclined tail pier can solve oval tail pier e middle pier of numerical the problem and inclined tail pier, the and the inclined tail pier simulation are consistent of water wings in the end

关 键 词：水翅 三维数值模拟 模型试验 中墩尾部体型 

分 类 号：TV135.2[水利工程—水力学及河流动力学]