Document Type : Original Manuscript
Authors
1 shahrekord university
2 Water science department, Shahrekord university
3 Amirkabir_university
Abstract
Sustainable development, engineering measures and selection of the most appropriate protection method to organize and stabilize the coasts, depends on knowledge of the behavior of waves on the coast.
Among the methods of protective structures, we can mention the coastal walls, which weaken the wave passing along the shore by creating damping in the height waves.
According to the numerical modeling approach in this study, experimental results were used to evaluate the performance of Open FOAM open source software and K-ω SST turbulence model in modeling the behavior of waves on the body of the coastal dyke.
By considering the different conditions for modeling, a total of 45 experiments were selected to run the program. Finally, the results were compared with laboratory findings, which indicates the ability of the numerical model to estimate the height of the wave passing along the shore after colliding with the dyke structure.
As the wave height increases, the water height before the structure increases, but its effect on the water height after the structure is greater because at a constant height of the structure, when the wave height increases, the amount of water passing increases.
Therefore, when the water height after the structure increases, its difference with the previous height decreases, and therefore the wave damping decreases from a wave height of 6 to 12 cm, and the existing structure reduces the water height to a lesser extent.
From the general comparison of the results, it can be said that a structure with a height of 15 cm has a higher efficiency in wave damping and reduces a greater amount of water height.
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