Wave-attenuation characteristics of combined-vegetation wave break forests for big rivers with large flood water level changes

For large rivers with a compound cross section, the downstream channel has a very wide water surface during the flood season. A wide water surface, high water level, and larger wind speed will cause higher waves, increasing the threat of flooding to the dike. The design of a combined-vegetation wave...

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Autores principales:	Jie Ren, Zengchuan Dong, Dawei Jin, Yue Zhou, Wei Xu, Biao Sun
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	combined-vegetation wave break forest numerical simulation physical experiment water level change wave attenuation Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/799bf5c423ab452880abdc4cda025fb4
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id	oai:doaj.org-article:799bf5c423ab452880abdc4cda025fb4
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spelling	oai:doaj.org-article:799bf5c423ab452880abdc4cda025fb42021-11-06T10:47:58ZWave-attenuation characteristics of combined-vegetation wave break forests for big rivers with large flood water level changes0273-12231996-973210.2166/wst.2021.011https://doaj.org/article/799bf5c423ab452880abdc4cda025fb42021-02-01T00:00:00Zhttp://wst.iwaponline.com/content/83/4/831https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732For large rivers with a compound cross section, the downstream channel has a very wide water surface during the flood season. A wide water surface, high water level, and larger wind speed will cause higher waves, increasing the threat of flooding to the dike. The design of a combined-vegetation wave break forest was put forward to achieve better wave attenuation effect. The main idea of this concept is to plant different types of vegetation at different locations in front of the dike. Three single-vegetation and four combined-vegetation forest schemes were tested under seven different water depth conditions. Both physical experiments and wave numerical simulations were carried out for each scheme to study the wave attenuation effect. The results showed that the wave attenuation effect of the single-vegetation wave break forest was significantly different under different water depth conditions, and the overall effect of the combined-vegetation of wave forest was better. Combined-vegetation wave break forests combine the advantages of different types of vegetation in different water levels, which makes it more economical and reasonable to plant by rivers with large water level variation. The proposed design ideas and methods could provide theoretical support for ecological revetment engineering of large rivers and insights for practical applications.Jie RenZengchuan DongDawei JinYue ZhouWei XuBiao SunIWA Publishingarticlecombined-vegetation wave break forestnumerical simulationphysical experimentwater level changewave attenuationEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 4, Pp 831-840 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	combined-vegetation wave break forest numerical simulation physical experiment water level change wave attenuation Environmental technology. Sanitary engineering TD1-1066
spellingShingle	combined-vegetation wave break forest numerical simulation physical experiment water level change wave attenuation Environmental technology. Sanitary engineering TD1-1066 Jie Ren Zengchuan Dong Dawei Jin Yue Zhou Wei Xu Biao Sun Wave-attenuation characteristics of combined-vegetation wave break forests for big rivers with large flood water level changes
description	For large rivers with a compound cross section, the downstream channel has a very wide water surface during the flood season. A wide water surface, high water level, and larger wind speed will cause higher waves, increasing the threat of flooding to the dike. The design of a combined-vegetation wave break forest was put forward to achieve better wave attenuation effect. The main idea of this concept is to plant different types of vegetation at different locations in front of the dike. Three single-vegetation and four combined-vegetation forest schemes were tested under seven different water depth conditions. Both physical experiments and wave numerical simulations were carried out for each scheme to study the wave attenuation effect. The results showed that the wave attenuation effect of the single-vegetation wave break forest was significantly different under different water depth conditions, and the overall effect of the combined-vegetation of wave forest was better. Combined-vegetation wave break forests combine the advantages of different types of vegetation in different water levels, which makes it more economical and reasonable to plant by rivers with large water level variation. The proposed design ideas and methods could provide theoretical support for ecological revetment engineering of large rivers and insights for practical applications.
format	article
author	Jie Ren Zengchuan Dong Dawei Jin Yue Zhou Wei Xu Biao Sun
author_facet	Jie Ren Zengchuan Dong Dawei Jin Yue Zhou Wei Xu Biao Sun
author_sort	Jie Ren
title	Wave-attenuation characteristics of combined-vegetation wave break forests for big rivers with large flood water level changes
title_short	Wave-attenuation characteristics of combined-vegetation wave break forests for big rivers with large flood water level changes
title_full	Wave-attenuation characteristics of combined-vegetation wave break forests for big rivers with large flood water level changes
title_fullStr	Wave-attenuation characteristics of combined-vegetation wave break forests for big rivers with large flood water level changes
title_full_unstemmed	Wave-attenuation characteristics of combined-vegetation wave break forests for big rivers with large flood water level changes
title_sort	wave-attenuation characteristics of combined-vegetation wave break forests for big rivers with large flood water level changes
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/799bf5c423ab452880abdc4cda025fb4
work_keys_str_mv	AT jieren waveattenuationcharacteristicsofcombinedvegetationwavebreakforestsforbigriverswithlargefloodwaterlevelchanges AT zengchuandong waveattenuationcharacteristicsofcombinedvegetationwavebreakforestsforbigriverswithlargefloodwaterlevelchanges AT daweijin waveattenuationcharacteristicsofcombinedvegetationwavebreakforestsforbigriverswithlargefloodwaterlevelchanges AT yuezhou waveattenuationcharacteristicsofcombinedvegetationwavebreakforestsforbigriverswithlargefloodwaterlevelchanges AT weixu waveattenuationcharacteristicsofcombinedvegetationwavebreakforestsforbigriverswithlargefloodwaterlevelchanges AT biaosun waveattenuationcharacteristicsofcombinedvegetationwavebreakforestsforbigriverswithlargefloodwaterlevelchanges
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Wave-attenuation characteristics of combined-vegetation wave break forests for big rivers with large flood water level changes

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