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Experimental verification of horizontal two-dimensional modified mild-slope equation model
Institution:1. Iranian National Institute for Oceanography and Atmospheric Sciences (INIOAS), Tehran, Iran, 1411813389;2. School of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran, 1684613114;1. Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection of People''s Republic of China, 8 Jiangwangmiao Str., Nanjing 210042, China;2. School of Geographic and Oceanographic Sciences, Nanjing University, 163 Xianlin Ave., Nanjing 210023, China
Abstract:In order to verify modified mild-slope equation models in a horizontal two-dimensional space, a hydraulic experiment is made for surface wave propagation over a circular shoal on which water depth varies substantially. A horizontal two-dimensional numerical model is also constructed based on the hyperbolic equations that have been developed from the modified mild-slope equation to account for the substantial depth variation. Comparison between experimental measurements and numerical results shows that the modified mild-slope equation model is capable of producing accurate results for wave propagation in a region where water depth varies substantially, while the conventional mild-slope equation model gives large errors as the mild-slope assumption is violated.
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