Two-Dimensional Analytical Solution for Compound Channel Flows With Vegetated Floodplains

HUAI Wen-xin; GAO Min; ZENG Yu-hong; LI Dan

doi:10.3879/j.issn.1000-0887.2009.09.006

Volume 30 Issue 9

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HUAI Wen-xin, GAO Min, ZENG Yu-hong, LI Dan. Two-Dimensional Analytical Solution for Compound Channel Flows With Vegetated Floodplains[J]. Applied Mathematics and Mechanics, 2009, 30(9): 1049-1056. doi: 10.3879/j.issn.1000-0887.2009.09.006

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Two-Dimensional Analytical Solution for Compound Channel Flows With Vegetated Floodplains

doi: 10.3879/j.issn.1000-0887.2009.09.006

State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, P. R. China

Received Date: 2008-09-16
Rev Recd Date: 2009-07-02
Publish Date: 2009-09-15

Abstract

Abstract

A 2-D analytical solution for compound channel flows with vegetated floodplains is presented.For steady uniform flow,the depth-integrated N-S equation was used for analysis.The effects of the vegetation were considered as the drag force item.The secondary currents were also taken into account in the governing equations and preliminary estimation of the secondary current intensity coef-ficient K was discussed.Predicted results for the straight channels and apex cross-section of meandering channels agree well with the experimental data,which shows that the analytical model presented here can be applied to predict the flow in compound channels with vegetated floodplains.
- compound channel,
- vegetation,
- drag force,
- secondary currents

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References(11)

References

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