Numerical Analysis of Interaction between a Solitary Wave and a Rectangular Fixed Semisubmerged Body
O. I. Gusev1, V. S. Skiba1,2, G. S. Khakimzyanov1, L. B. Chubarov1
1Federal Research Center for Information and Computational Technologies, Novosibirsk, Russia
2Novosibirsk State University, Novosibirsk, Russia
Keywords: solitary wave, rectangular semisubmerged body, two-dimensional and one-dimensional shallow water equations, matching conditions, offset, force action
Abstract
The results of numerical simulation within the framework of a two-dimensional shallow water model of the interaction of a solitary wave with a stationary semi-submerged body with a rectangular cross section are presented. A comparison of these results with the results of calculations based on a model of irrotational three-dimensional flows showed that for small amplitudes of the incident wave, the modeling accuracy is satisfactory. It has been established that neglecting the diffraction of a solitary wave on the surface of a cylinder when using a one-dimensional model of shallow water leads to overestimates of the maximum values of the wave runup on the edge of the cylinder and the force loads on it.
|
