| HYDRAULIC ENGINEERING |
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Numerical simulation of multidirectional irregular wave group propagation |
| LIU Si, ZHANG Yongliang |
| State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China |
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Abstract Irregular wave group motion was simulated for comparison with physical model tests. Real waves are multidirectional waves. A numerical method was developed to simulate multidirectional irregular wave groups for various wave parameters, grouping factors and directional spreading parameters for use in designing an experimental wave basin for multidirectional irregular wave groups. The simulations of the wave time series of the incident waves was based on the numerical model of modified Boussinesq equations solved by finite element. Examples show that multidirectional waves containing the desired wave groupiness can be generated at a specified position in the numerical wave basin. Transformations of the wave groupings in the basin are also numerically analyzed.
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| Keywords
multidirectional waves
wave groups
grouping factor
numerical simulation
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Issue Date: 15 December 2015
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2015,
Vol. 55
