A comparison of 2D and 3D simulations of the River Blackwater

被引：2

作者：

Barrett, Lawrence ^{[1
]}

Wright, Nigel G. ^{[2
]}

Sterling, Mark ^{[3
]}

机构：

[1] UNESCO, IHE Inst Water Educ, Delft, Netherlands

[2] Univ Leeds, Sch Civil Engn, Water & Environm Engn, Leeds, W Yorkshire, England

[3] Univ Birmingham, Fluid Dynam, Birmingham, W Midlands, England

来源：

PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-ENGINEERING AND COMPUTATIONAL MECHANICS | 2011年 / 164卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

fluid mechanics; mathematical modelling; river engineering;

D O I：

10.1680/eacm.2011.164.4.217

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The present paper reports the findings of a study in which the appropriateness of using two-dimensional (2D) and three-dimensional (3D) numerical modelling in order to simulate the flow in a small reach of the river Blackwater, UK, was examined. The numerical simulations were compared with data obtained from a 1 : 5 scale physical model of the reach. A variety of turbulence models were used in order to evaluate their suitability and assess their impact on the simulations. In order to enable direct comparisons, all of the simulations were undertaken using a single modelling code, Delft3D. It was shown that 3D models offer significant advantages over 2D when applied to a meandering channel and that this choice outweighs the choice of turbulence model.

引用

页码：217 / 232

页数：16

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