非对称分叉河渠紊流流场和浓度场的计算  

Numerical Solution of the Turbulent Flow Field and Concentration Field in a Non—symmetrical Branching Channel

作　　者：李克锋[1] 罗麟[1] 李嘉[1] 

机构地区：[1]成都科技大学高速水力学国家重点实验室

出　　处：《成都科技大学学报》1993年第4期47-52,共6页

摘　　要：本文采用紊流深度平均的控制方程组及 k—ε双方程紊流模型,对非对称分叉河渠紊流的流场和浓度场进行了数值模拟,对分叉河渠不规则边界的处理,提出了区域坐标系统法。计算结果给出了流动参量及污染物浓度在水平面的分布。本文数学模型及求解方法对平面上的任意分叉问题都是适用的。Using the depth-averaged governing equations and the k-εturbulence model,the flow field and concentration field of turbulent flow in the non-symmetrical branching channel have been numerically simulated in this paper.The Regional Coordinate System method is put forward to deal with the irregular boundary.The results reveal the distribution of flow quantities and con centration field in the horizontal plane.The mathematical model and the numerical method are suitable for any kind of branching case in the horizontal plane.

关 键 词：不对称分叉 湍流 浓度场 流场 

分 类 号：TV131.21[水利工程—水力学及河流动力学]