DISTRIBUTIONS OF VELOCITY IN COMPOUND CHANNELS WITH HIGH VEGETATION ON FLOODPLAINS

被引：3
|
作者：
Koziol, Adam [1 ]
Kubrak, Janusz [1 ]
Kubrak, Elzbieta [1 ]
Krukowski, Marcin [1 ]
Kiczko, Adam [1 ]
机构：
[1] Szkola Glowna Gospodarstwa Wiejskiego Warszawie, Katedra Inzynierii Wodnej, Ul Nowoursynowska 159, PL-02776 Warsaw, Poland
来源：
ACTA SCIENTIARUM POLONORUM-FORMATIO CIRCUMIECTUS | 2016年 / 15卷 / 04期
关键词：
flow velocity of water; discharge of compound channel; floodplain with and without vegetation;
D O I：
10.15576/ASP.FC/2016.15.4.227
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
The method of Shiono and Knight [1991] is applied for predicting the lateral velocity profile averaged in depth in compound channels with high vegetation on floodplains. The model is based on the analytical solution of Navier-Stokes equations that include the effect of vegetation. The flow through vegetation was modeled by an additional term in Navier- Stokes equations for the resistance force. The coefficients characterizing the eddy viscosity and secondary flows, necessary for calculations were identified. The computational results were compared with laboratory and field measurements. The elaborated transverse velocity profiles averaged in depth and water discharges are in a good agreement with laboratory and field observations.
引用
收藏
页码：227 / 241
页数：15
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