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Wave Shoaling over a Submerged Ramp: An Experimental and Numerical Study
| 题名： | Wave Shoaling over a Submerged Ramp: An Experimental and Numerical Study |
| 其他题名： | Alagan Chella,M.,Bihs,H.,and Myrhaug,D.(2015)."Characteristics and profile asymmetry properties of waves breaking over an impermeable submerged reef."Coastal Eng.,100,26-36. |
| 正文语种： | 英文 |
| 作者： | V. K. Srineash |
| 关键词： | Shoaling coefficient;Measurement of wave shoaling;Skewness;Kurtosis;Computation of wave shoaling |
| 摘要： | Shoaling in intermediate and shallow waters is a major process that occurs as the water wave travels toward the shore from deep waters. Evaluation of the appropriate shoaling coefficient (K_s) is essential in understanding the nearshore energy distribution and surf-zone dynamics. The value of K_s is underestimated using linear wave theory in shallow waters. The present work focused on the investigation of the shoaling coefficient through wave-flume experiments and numerical simulations. Furthermore, comparisons were made with nonlinear theories to bring out the range of applicability of theories. A submerged ramp was used in the wave-flume experiments to mimic the shoaling process. The nonlinearity in the unshoaled and shoaled-wave profiles were brought out using skewness and kurtosis. It was found that Cokelet's nonlinear theory agrees well with the measurements and computations. The comparative analysis of the experimental measurements with the numerical simulations suggests that the numerical model is a powerful tool to reproduce the wave-transformation process over sloping beds. |
| 出版年： | 2018 |
| 论文唯一标识： | P-108Y2018V144N02010 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/(ASCE)WW.1943-5460.0000435 |
| 期刊名称： | Journal of Waterway, Port, Coastal, and Ocean Engineering |
| 拼音刊名(出版物代码)： | P-108 |
| 卷： | 144 |
| 期： | 02 |
| 页码： | 124-135 |
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