Modelling Solitary Waves and Its Impact on Coastal Houses with SPH Method |
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Authors: | LIANG Dong-fang N I Thusyanthan S P Gopal Madabhushi TANG Hong-wu |
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Institution: | [1]Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, UK [2]KW Ltd, Fetcham Park House, Lotcer Road, Fetcham, Surrey KT22 91ID, UK [3]State Key Laboratory of Hydrology-Water Resources and Hydraulic Er~gineering, Hohai University, Nanjing 210098, China |
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Abstract: | The interaction between solid structures and free-surface flows is investigated in this study. A Smoothed Particle Hydrodynamics (SPH) model is used in the investigation and is verified against analytical solutions and experimental observations. The main aim is to examine the effectiveness of a tsunami-resistant house design by predicting the wave loads on it. To achieve this, the solitary wave generation and run-up are studied first. The solitary wave is generated by allowing a heavily weighted block to penetrate into a tank of water at one end, and the near-shore seabed is modelled by an inclined section with a constant slope. Then, the SPH model is applied to simulate the three-dimensional flows around different types of houses under the action of a solitary wave. It has been found that the tsunami-resistant house design reduces the impact force by a factor of three. |
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Keywords: | solitary waves tsunami wave impact coastal structures SPH |
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