水利水电科技进展2017，Vol.37Issue(5)：51-56,6.DOI:10.3880/j.issn.1006-7647.2017.05.009
梯形透水潜坝三维水流特性的数值模拟
Numerical simulation of three-dimensional flow characteristics of trapezoidal permeable submerged dam
摘要
Abstract
Three-dimensional flow fields of submerged dams with four permeable rates (0. 1, 0. 2, 0. 3, and 0. 4) were numerically simulated based on the OpenFOAM open source package, and the influence of the permeable rate and discharge on the three-dimensional flow characteristics around permeable submerged dams was examined. The results show that, under constant discharge conditions, with the increase of the permeable rate, the reflux behind the dam is weakened; the upwelling height, the range of the slow-flow area, and the vorticity decrease; and the turbulent kinetic energy in the dam and near the permeable circular hole behind the dam increases. Under constant permeable rate conditions, with the increase of the discharge, the range of the slow-flow area behind the dam increases, the reflux is gradually weakened, the mixing is aggravated, and the vorticity and turbulent kinetic energy as well as their influence ranges increase.关键词
透水潜坝/透空率/流场/涡量/紊动能/三维水流特性Key words
permeable submerged dam/permeable rate/flow field/vorticity/turbulent kinetic energy/three-dimensional flow characteristics分类
建筑与水利引用本文复制引用
王小明,程永舟,常留红,徐斌..梯形透水潜坝三维水流特性的数值模拟[J].水利水电科技进展,2017,37(5):51-56,6.基金项目
国家自然科学基金(51679015) （51679015）
国家重点研发计划(2016YFC0402108) （2016YFC0402108）
湖南省自然科学基金(2015JJ2006) （2015JJ2006）
