Turbulent Free Surface Flow over a Gravel Bed

被引：0

作者：

Xie, Zhihua ^{[1
]}

Lin, Binliang ^{[1
,2
]}

Falconer, Roger A. ^{[1
]}

机构：

[1] Cardiff Univ, Sch Engn, Cardiff CF24 3AA, S Glam, Wales

[2] Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China

来源：

PROCEEDINGS OF THE 35TH IAHR WORLD CONGRESS, VOLS I AND II | 2013年

关键词：

Open-channel flows; Free surface; Turbulence; Numerical simulation; Gravel bed; LARGE-EDDY SIMULATION; ROUGH-BED; CHANNEL;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Turbulence in open-channel flow over a rough bed is very complex. Although many investigations have been undertaken, the current understanding of the roughness effect on the turbulent properties is still limited. In this paper, a numerical model study of turbulent free surface flow over a gravel bed is presented. A three-dimensional turbulent free surface flow model was developed to study the roughness effect on the turbulence properties and free surface. The model has been applied to an experiment of flow over a gravel bed and the predictions agree closely with the experimental data, thus it can be considered as a complementary approach to experimental investigations to gain further insight into the turbulent flow dynamics.

引用

页码：4880 / 4885

页数：6

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