As part of my thesis, I used the Dual SPHysics software to model wave interactions with three different breakwater designs (rectangular, sloped, and rounded) under current and future climate conditions. The study is based on the smoothed particle hydrodynamics (SPH) method, which enables detailed analysis of fluid-structure interactions. The results show that breakwater geometry significantly impacts performance: the sloped design proved to be most effective at wave energy dissipation, while the rectangular structure caused the highest wave reflections. Future climate scenarios incorporated a 1,5 m sea level rise and 10 % increase in wave height while maintaining constant wave period. Simulations of future state confirmed that climate change will reduce the effectiveness of all designs, with the sloped breakwater showing the smallest loss of performance. The work highlights the need for adapting existing coastal structures. The findings provide valuable insights for coastal engineering by evaluating breakwater performance under projected future conditions. Study limitations include simplified geometrical models and roughly estimated future climate parameters. More accurate climate data and realistic modeling would be required for further research.
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