Effect of vegetation on run-up and wall pressures due to cnoidal waves / Vallam Sundar in Journal of hydraulic research, Vol. 49 N° 4 (Juillet/Août 2011)  

Public ISBD [article]  inJournal of hydraulic research > Vol. 49 N° 4 (Juillet/Août 2011) . - pp. 562-567 Titre : Effect of vegetation on run-up and wall pressures due to cnoidal waves Type de document : texte imprimé Auteurs : Vallam Sundar, Auteur ; Kantharaj Murali, Auteur ; Lakshmanan Noarayanan, Auteur Année de publication : 2011 Article en page(s) : pp. 562-567 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Bio-shield Cnoidal wave Dynamic pressure Run-up Tsunami mitigation Vegetation Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : A comprehensive experimental investigation was carried out to understand the effect of vegetation in attenuating run-up over a plane slope of 1 : 30 due to the propagation of cnoidal waves. Two different types of vegetation configurations, namely tandem and staggered, are considered. Dynamic pressures exerted along a vertical wall fronted by these two vegetation types were measured, and the typical variation of dimensionless peak pressures for different relative depths of submergence of the pressure ports is reported as a function of dimensionless parameters involving the vegetation and wave characteristics. Further, typical results on the variation of the dimensionless peak run-up versus the surf similarity parameter only for the staggered configuration are also herein reported. Finally, the percentage reduction in wave run-up and pressures on the wall due to the presence of wall fronted by vegetation are reported. DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2010.542615 [article] Effect of vegetation on run-up and wall pressures due to cnoidal waves [texte imprimé] / Vallam Sundar, Auteur ; Kantharaj Murali, Auteur ; Lakshmanan Noarayanan, Auteur . - 2011 . - pp. 562-567. Hydraulique Langues : Anglais (eng) in Journal of hydraulic research > Vol. 49 N° 4 (Juillet/Août 2011) . - pp. 562-567 Mots-clés : Bio-shield Cnoidal wave Dynamic pressure Run-up Tsunami mitigation Vegetation Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : A comprehensive experimental investigation was carried out to understand the effect of vegetation in attenuating run-up over a plane slope of 1 : 30 due to the propagation of cnoidal waves. Two different types of vegetation configurations, namely tandem and staggered, are considered. Dynamic pressures exerted along a vertical wall fronted by these two vegetation types were measured, and the typical variation of dimensionless peak pressures for different relative depths of submergence of the pressure ports is reported as a function of dimensionless parameters involving the vegetation and wave characteristics. Further, typical results on the variation of the dimensionless peak run-up versus the surf similarity parameter only for the staggered configuration are also herein reported. Finally, the percentage reduction in wave run-up and pressures on the wall due to the presence of wall fronted by vegetation are reported. DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2010.542615

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