Modelling the distribution of velocity in a river cross-section

被引：6

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.

引用

页码：155 / 162

页数：8