Lattice Boltzmann method for simulating flows in open-channel with partial emergent rigid vegetation cover

被引：0

作者：

Zhong-hua Yang

Feng-peng Bai

Wen-xin Huai

Cheng-guang Li

机构：

[1] Wuhan University,State Key Laboratory of Water Resources and Hydropower Engineering Science

[2] Changjiang Water Resources Protection Institute,Shandong Provincial Key Laboratory of Water Resources and Water Environment

[3] Water Resources Research Institute of Shandong Province,undefined

来源：

Journal of Hydrodynamics | 2019年 / 31卷

关键词：

Open-channel flow; rigid vegetation; lattice Boltzmann method; shallow water equations; vegetation roughness coefficient;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Flows in open-channel with partial emergent rigid vegetation cover are simulated using the lattice Boltzmann method (LBM) described by the 2-D nonlinear shallow water equations. The effect of vegetation is represented with the vegetation roughness coefficient, which is related to the vegetation density, diameter of the vegetation elements and drag coefficient. The model is verified by three numerical tests: flow in a 180° curved open channel with partial vegetation cover at the outer bank, flow in a rectangular channel with a finite patch of vegetation and flow in a rectangular channel with a vegetated bank. Numerical results are compared with the experimental data, and the good agreement proved that the presented model can model the vegetated channel flows correctly.

引用

页码：717 / 724

页数：7

共 45 条

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