摘要
本文从三维雷诺方程和物质输运方程出发,导出水深平均的二维K-ε紊流模型,运用控制体积法对方程组进行离散,采用SLMPLE计算程式,模拟计算扩散器近区流场和浓度场.通过物理模型试验,验证数值模型,计算结果与试验值十分吻合.
The steady two-dimensional flow and concentration field induced by a diffuser in open channels are obtained by a numerical solution of the depth-averaged k-ε equations based on integrating three-dimensional Reynolds equations and scalar equation. The numerical scheme which uses the control volme method and SIMPLE method is validated against detainled laboratory experiments for a wide range of ambient conditions.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1992年第3期15-23,共9页
Journal of Hohai University(Natural Sciences)
关键词
扩散器
数值模拟
河流
流场
浓度场
open channel
diffuser
numerical simulation
κ-ε model
control volume mothod
momentum source
flow field
concentration field
