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| Simulation of Wave Breaking Based on NonHydrostatic Equations |
| ZOU Guoliang1,2,ZHANG Qinhe1，ZHANG Na3
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| (1. State Key Laoratory of Hydraulic Engineering Simulation and Safety, Tianjin University,
Tianjin 300072, China; 2. Nanjing Hydrulic Research Institute, Nanjing 210024, China;
3. School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China) |
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Abstract Abstract： A numerical model was developed for simulating wave propagation and breaking in nearshore zone with higher computational efficiency based on SWASH which is a on nonhydrostatic equations model to ensure essential numerical precision. In order to reduce vertical layers, nonhydrostatic equations were switched to nonlinear shallow water equations with hydrostatic approximation while a turbulence model was simultaneously introduced to describe the energy dissipation of breaking waves. The model was verified by experimental data of flume experiments such as wave breaking on a slope bottom, submerged breakwater and a sand bar. These validations show that the model is very effective in reasonably predcting wave breaking location and breaking wave height. This further illustruates that the nonhydrostatic model adopting realatively few vertical layers can be more attractive and competitive in actual engineering appliations.
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Received: 03 March 2015
Published: 28 March 2016
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