Inlet and outlet boundary conditions for the Lattice-Boltzmann modelling of shallow water flows

被引：17
|
作者：
Liu, H. [1 ]
Zhou, J. G. [2 ]
Burrows, R. [2 ]
机构：
[1] Beijing Normal Univ, State Key Lab Water Environm Simulat, Sch Environm, Beijing 100875, Peoples R China
[2] Univ Liverpool, Dept Engn, Liverpool L69 3GQ, Merseyside, England
来源：
PROGRESS IN COMPUTATIONAL FLUID DYNAMICS | 2012年 / 12卷 / 01期
基金：
中国国家自然科学基金;
关键词：
flow boundary conditions; Lattice Boltzmann method; shallow water; LABSWE;
D O I：
10.1504/PCFD.2012.044850
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In Lattice-Boltzmann modelling of shallow water flows, an approach for a constant discharge Q(in) at the inflow and a fixed water depth h* at the outflow is proposed in this paper. It maintains the prescribed conditions, meanwhile keeps the variables consistent with those outside the flow domain. The effectiveness of the approach is demonstrated by two numerical tests: flows in a straight channel and in a divergent channel.
引用
收藏
页码：11 / 18
页数：8
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