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Modelling the distribution of velocity in a river cross‐section

 

作者: DerekG. Goring,   JeremyM. Walsh,   Peter Rutschmann,   Jürg Trösch,  

 

期刊: New Zealand Journal of Marine and Freshwater Research  （Taylor Available online 1997）
卷期: Volume 31, issue 2  

页码: 155-162

 

ISSN:0028-8330

 

年代: 1997

 

DOI:10.1080/00288330.1997.9516754

 

出版商: Taylor & Francis Group

 

关键词: Navier Stokes equations;velocity distributions;finite element method;river gauging

 

数据来源: Taylor

 

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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