Influence of Bottom Roughness on the Solitary-Wave Interaction with Partially Immersed Rectangular Body
O. I. Gusev1, V. S. Skiba1,2, G. S. Khakimzyanov1, L. B. Chubarov1
1Federal Research Center of Information and Computing Technologies, Novosibirsk, Russia
2Novosibirsk National Research State University, Novosibirsk, Russia
Keywords: solitary wave, uneven bottom, partially immersed body, nonlinear dispersion equations, conjugation conditions, force impact, calculation results
Abstract
The problem of the interaction of a solitary wave with a partially immersed stationary body over an uneven bottom. This problem is solved using the nonlinear dispersion shallow-water model (Serret-Green-Naghdi) and the model of potential flows. The influence of the horizontal and vertical sizes of bottom irregularities and their location relative to the partially immersed body on the values of the total force acting on the obstacle. It is shown that the horizontal component of this force increases monotonically with increasing vertical dimension and length of the underwater obstacle. This effect is also enhanced when approaching the body The vertical component of the force is slightly affected by the obstacle, and its dependence on the obstacle size can be nonmonotonic.
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