Numerical simulation of multidirectional irregular wave group propagation

LIU Si; ZHANG Yongliang

doi:10.16511/j.cnki.qhdxxb.2015.24.004

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Journal of Tsinghua University(Science and Technology) ›› 2015, Vol. 55 ›› Issue (12) : 1289-1295. DOI: 10.16511/j.cnki.qhdxxb.2015.24.004

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Numerical simulation of multidirectional irregular wave group propagation

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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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multidirectional waves / wave groups / grouping factor / numerical simulation

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LIU Si, ZHANG Yongliang. Numerical simulation of multidirectional irregular wave group propagation[J]. Journal of Tsinghua University(Science and Technology). 2015, 55(12): 1289-1295 https://doi.org/10.16511/j.cnki.qhdxxb.2015.24.004

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