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原文传递 Experimental Investigation of the Hydraulic Performance of Breakwater Structures with Geotextile Armor Units

题名：	Experimental Investigation of the Hydraulic Performance of Breakwater Structures with Geotextile Armor Units
正文语种：	eng
作者：	Tom Elias;Kiran G. Shirlal
作者单位：	Research Scholar Dept. of Water Resources and Ocean Engineering National Institute of Technology Kamataka Surathkal Mangaluru 575025 India;Dept. of Water Resources and Ocean Engineering National Institute of Technology Kamataka Surathkal Mangaluru 575025 India
关键词：	Geotextiles; Breakwater; Reflection coefficient; Wave runup; Wave rundown
摘要：	Geotextiie sand containers (GSCs) gained popularity recently as a modem age coastal protection measure. Its usability as an ecofriendly alternative for traditional breakwaters overcomes issues such as scarcity and quarrying prohibition of natural rocks. The current work involves a 1:30 scaled physical experimentation on the hydraulic performance of an emerged, nonovertopping breakwater model with GSCs. Four configurations of GSC structures are analyzed for their runup, rundown, and reflection characteristics confining to wave parameters of Mangaluru. The study revealed that the reflection coefficient (K_r) for GSC structures could range from 0.26 to 0.69. In addition, reducing GSC fill percentage from 100 to 80 is found to be more effective (up to 64%) in reducing reflection, runup, and rundown rates, than altering GSC size. These results can serve as a practical guideline for designing GSC breakwaters.
出版年：	2022
期刊名称：	Journal of Waterway, Port, Coastal and Ocean Engineering
卷：	148
期：	3
页码：	04022006.1-04022006.13