复杂地形河道的二维数值模拟及问题处理

摘要

复杂地形长河道水流形态的数值模拟在模拟过程中会遇到很多困难,本文以遂宁城区河段为例进行二维数值模拟,并对其中出现的问题采用网格加密、热启动等进行处理,计算结果表明,数学模型计算值能与试验值较好吻合,这将为河段水流形态的研究提供借鉴.%Numerical simulation of the complex terrain long river flow form will meet many difficulties in the simulation process.This paper takes SuiNing reach city for example to analysis two dimensional numerical simulation,and uses hot start,mesh refinement different to processing difficulties.The resuits show that mathematical model calculated value and the test value can be better coincidence,which will provide a reference for river flow morphology study.