Modelling the distribution of velocity in a river cross-section

被引：5
|
作者：
Goring, DG
Walsh, JM
Rutschmann, P
Trosch, J
机构：
[1] National Institute of Water & Atmospheric Research Ltd., Christchurch
[2] Laboratory of Hydraulics, Hydrology and Glaciology, Swiss Federal Institute of Technology, Zürich
来源：
NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH | 1997年 / 31卷 / 02期
关键词：
Navier Stokes equations; velocity distributions; finite element method; river gauging;
D O I：
10.1080/00288330.1997.9516754
中图分类号：
S9 [水产、渔业];
学科分类号：
0908 ;
摘要：
A method is described for modelling the distribution of velocity across a river cross-section in a straight reach in uniform, steady flow. The method uses a finite element model based on a simplified Navier-Stokes equation and a mixing length hypothesis. The model is applied to a representative river reach and a comparison is made with velocity gaugings in the reach. Good agreement is shown where flow conditions match the assumptions on which the model is based.
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页码：155 / 162
页数：8
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