SPH Simulation of the Interaction between Freak Waves and Bottom-Fixed Structures

Xuan Hu, Azhar Halik () and Ahmadjan Muhammadhaji
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Xuan Hu: College of Mathematics and System Sciences, Xinjiang University, Urumqi 830017, China
Azhar Halik: College of Mathematics and System Sciences, Xinjiang University, Urumqi 830017, China
Ahmadjan Muhammadhaji: College of Mathematics and System Sciences, Xinjiang University, Urumqi 830017, China

Mathematics, 2023, vol. 11, issue 23, 1-16

Abstract: In this paper, the Smoothed Particle Hydrodynamics (SPH) method is used in a C# environment to simulate the interaction between freak waves and bottom-fixed structures by establishing a fluid dynamics model. Paraview software 5.10.1 was used to analyze and visualize the simulation results. In order to simulate wave propagation accurately, the reliability of the model was verified by comparing experimental and simulated data. A two-dimensional numerical wave flume was established based on the SPH method, a conservative Riemann solver was introduced, a repulsive boundary condition was adopted, and a slope was used to eliminate wave reflection. Bottom-fixed structures of different heights and lengths, as well as different wave conditions, were selected to numerically simulate the interaction between freak waves and bottom-fixed structures. The results show that the height of bottom-fixed structures and wave conditions have a significant effect on hindering the propagation of rogue waves, while the length has little effect on the propagation of deformed waves. When the amplitude of the wave remains constant, both the period andthe duration of the deformed wave are longer. This research is of certain significance for the prediction of freak waves in marine engineering and the application and promotion of SPH methods.

Keywords: SPH method; freak wave; bottom-fixed structures; numerical simulation; breakwater (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
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