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Publicações
Santoro, A., Arena, F. e Guedes Soares, C. (2014), “Space-time evolution of wave groups in crossing seas with the Quasi-determinism theory”, Ocean Engineering, Vol. 91, pp. 350-362
The space-time evolution of wave groups in crossing seas is investigated. Profiles were calculated by applying Quasi-determinism theory in its first formulation starting first from the laboratory data and then using the theoretical spectrum used for wave generation, given that a very high crest takes place at a fixed point in the basin. The analysis of the predictions shows that the group with the high crest is given by the superposition of two wave groups, associated one to the low-frequency component of the frequency spectrum and the other to the high-frequency one. The results showed how in crossing seas, the change in direction of one system affects the evolution of the related group, without any significant influence on the evolution of the other one. The results obtained demonstrate that in crossing seas the profile at each location reflects the spectrum related to that specific point. Finally the analysis of the second-order contribution revealed that the nonlinear effect is maximum when the highest crest occurs and gives higher and steeper crests and lower and flatter troughs than the linear ones whatever is the sea state considered being the greatest in presence of the wind wave dominated spectrum.
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