Experimental and numerical simulations of oblique extreme wave conditions in front of a breakwater`s trunk and round head

• Autor(a) principal: Carvalho, R. F.
• Data de Publicação: 2021
• Outros Autores: Santos, João Alfredo, Ojeda, G. Barajas, Beg, Md. N. A., Lopes, P. M., Fortes, J. C., Lara, J. L.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.21/13761
• topic: Breakwater; Wave generation; OpenFOAM®; Scale-model tests; Oblique extreme wave conditions; Quebra-mar; Geração de ondas; Testes em modelo reduzido; Condições de ondas extremas oblíquas

Climate change studies already reported sea level rise as an accepted scenario, which induces changes in nearshore wave conditions. A large range of new experiences including water level, run-up, overtopping, hydrodynamic data for different wave steepnesses and directions was performed in the Leibniz Universität Hannover (LUH) wave basin for a rubble mound breakwater with a slope of 1(V):2(H). This work presents, focusing on oblique extreme wave conditions, numerical simulations of the hydrodynamics in that experiment using OpenFOAM®. Results of the wave generation boundary conditions and their propagation, namely elevation of the water level free-surface and velocity data at specific locations are compared and discussed with data from experimental measurements acquired by acoustic wave gauges and acoustic doppler velocimeter (ADV) / Vectrino equipment. Although an exact match between numerical and laboratory values was not reached, an appropriate incident wave angle and a reasonable amplitude of velocities and water depths was achieved and the same happened to the statistics of those values.