水力发电学报2016，Vol.35Issue(10)：12-20,9.DOI:10.11660/slfdxb.20161002
基于精确河道地形的溢流坝泄流三维数值模拟
Three-dimensional numerical simulations of flows over spillway dam using accurate river terrain
摘要
Abstract
This study has developed a three-dimensional CFD numerical method for simulation of the flows over a spillway dam using accurate river terrain.We used the CATIA design platform to construct a 3-D reservoir model for the Yujiahe project of Hubei,which combined the detailed geometry of buildings and structures with river terrain and captured the geometric details of spatial arrangement of a real hydraulic project.An RNG k-epsilon turbulence model and VOF method for tracking free surface were adopted.Flow velocity,water flow regime,and pressure on dam surface in the conditions of flow rates of 1669,1199 and 728 m3/s were simulated.Comparison and analysis showed a good agreement of modeling results with the measurements of our scale model tests and verified the model.This study demonstrates the advantages of the new method in simulation of 3-D flows over complicated river terrain.关键词
溢流坝/精确河道地形/三维数值模拟/紊流模型/物理模型试验Key words
spillway dam/accurate river terrain/3D numerical simulation/turbulent model/physical model test分类
建筑与水利引用本文复制引用
戚蓝,陈辉,费文才,刘东海..基于精确河道地形的溢流坝泄流三维数值模拟[J].水力发电学报,2016,35(10):12-20,9.基金项目
国家自然科学基金(51479132) （51479132）
