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Springer Geology

ISSN:21979545

2026

10.1007/978-981-96-9302-3_12

The expansion of the mode composition and amplification of long-wave oscillations in systems of adjacent bays due to their coupling through entrances can make a serious threat to the operation of ports and their coastal infrastructure. Based on the nonlinear numerical model FUNWAVE (fully nonlinear WAVE model), seiche oscillations in a system of two adjacent model bays of different sizes, excited by the action of a soliton, were studied. It was found that the large bay A has a significant effect on oscillations in the adjacent smaller bay B, in which, due to the coupling, an intense oscillation with a period corresponding to the Helmholtz mode of bay A is generated, dominating over all other eigenmodes. The condition under which the Helmholtz mode of bay A does not penetrate into bay B was obtained. Higher frequency eigenmodes are also excited in the bays under consideration. Their intensity is low and weakly depends on the distance between the bays.

Boussinesq equations, Coupled bays, Helmholtz mode, Numerical model FUNWAVE, Seiches

2-s2.0-105026669274

Manilyuk, Y.V., Dovgaya, S.V., Fomin, V.V. (2026). Features of Seiche Oscillations in the System of Adjacent Bays. In: Chaplina, T. (eds) Processes in GeoMedia—Volume IX. Springer Geology. Springer, Singapore. https://doi.org/10.1007/978-981-96-9302-3_12