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原文传递 SPH Modeling of Wave Transformation over a Coral Reef with Seawall

题名：	SPH Modeling of Wave Transformation over a Coral Reef with Seawall
正文语种：	英文
作者：	Hongjie Wen1; Bing Ren2; Xiang Zhang3; Xiping Yu4
作者单位：	1Postdoctoral Fellow, State Key Laboratory of Coastal and Offshore Engineering, Dalian Univ. of Technology, Dalian 116024, China. 2Professor, State Key Laboratory of Coastal and Offshore Engineering, Dalian Univ. of Technology, Dalian 116024, China (corresponding author). 3Assistant Engineer, Yellow River Institute of Hydraulic Research, Yellow River Conservancy Commission, Zhengzhou 450003, China. 4Professor, State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua Univ., Beijing 100084, China.
关键词：	Wave breaking; Wave setup; Wave-induced current; Coral reef; Smoothed particle hydrodynamic; Vertical seawall
摘要：	Wave transformations over a coral reef with a steep front slope were comparatively studied using both laboratory tests and smoothed particle hydrodynamic (SPH) modeling. In the numerical model, nonreflective generation and absorption of waves were realized by adding a source term and a velocity attenuation term into the governing momentum equation. The physical and numerical models were carefully designed so that the nonphysical rise of the mean water level over the reef was avoided. Experimental and numerical results on the free surface elevations and the spatial distributions of wave height and wave setup over the reef with and without a vertical seawall were compared and good agreements were obtained. The cross-spectral transfer of wave energy from the peak frequency to the lower and higher frequencies, the vertical distributions of wave-induced current over the reef, and the effects of the seawall position on the maximum wave setup and wave run-up are discussed.
出版年：	2019
期刊名称：	Journal of Waterway, Port, Coastal, and Ocean Engineering
卷：	145
期：	1
页码：	1-13