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

共 50 条

[41] An experimental investigation of turbulent free-surface flows over a steep permeable bed
Rousseau, G.
Ancey, C.
[J]. JOURNAL OF FLUID MECHANICS, 2022, 941
[42] Spatial-scale partitioning of in situ turbulent flow data over a pebble cluster in a gravel-bed river
Lacey, R. W. Jay
Legendre, Pierre
Roy, Andre G.
[J]. WATER RESOURCES RESEARCH, 2007, 43 (03)
[43] Shallow gravel-bed river flows: The behaviour of the free surface and the flow information contained within
Nichols, A.
Horoshenkov, K. V.
Tait, S. J.
[J]. RIVER FLOW 2014, 2014, : 301 - 309
[44] Turbulence at a roughness transition in a depth limited flow over a gravel bed
Robert, A
Roy, AG
DeSerres, B
[J]. GEOMORPHOLOGY, 1996, 16 (02) : 175 - 187
[45] ON THE DEVELOPMENT OF BOUNDARY-LAYER FLOW OVER A GRAVEL-BED
WANG, JJ
[J]. CHINESE SCIENCE BULLETIN, 1991, 36 (20): : 1725 - 1728
[46] Turbulent Bore in a Supercritical Flow over an Irregular Bed
Gusev, A. V.
Lyapidevskii, V. Yu.
[J]. FLUID DYNAMICS, 2005, 40 (01) : 54 - 61
[47] Turbulent bore in a supercritical flow over an irregular bed
A. V. Gusev
V. Yu. Lyapidevskii
[J]. Fluid Dynamics, 2005, 40 : 54 - 61
[48] A comparative study of the turbulent flow field with and without a pebble cluster in a gravel bed river
Lacey, R. W. Jay
Roy, Andre G.
[J]. WATER RESOURCES RESEARCH, 2007, 43 (05)
[49] On the integration of turbulent flow structures within the dynamics of a gravel-bed river reach
Buffin-Bélanger, T
Roy, AG
Kirkbride, AD
[J]. GEOGRAPHIE PHYSIQUE ET QUATERNAIRE, 2000, 54 (01): : 105 - 117
[50] 3D NUMERICAL MODELLING OF NEAR BED FLOW OVER AN ARTIFICIAL GRAVEL BED
Sessa, Vincenzo
Ruther, Nils
Gualtieri, Carlo
[J]. PROCEEDINGS OF THE 36TH IAHR WORLD CONGRESS: DELTAS OF THE FUTURE AND WHAT HAPPENS UPSTREAM, 2015, : 3516 - 3523

← 1 2 3 4 5 →