NUMERICAL SIMULATIONS OF SPILLING BREAKING WAVES

Proceedings of the International Conference on Coastal Engineering

Hubert Branger³  Olivier Kimmoun²  Pierre Lubin¹  Stéphane Glockner¹ 

[1] Université de Bordeaux;Ecole Centrale de Marseille;Université Aix-Marseille

关键词: breaking waves;    Navier-Stokes;    numerical simulations;    Large Eddy Simulation;   

DOI  :  10.9753/icce.v32.waves.11

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

Numerical simulation of spilling breaking waves is still a very challenging aim to achieve since small interfacedeformations, air entrainment and vorticity generation are involved during the early stage of the breaking of the wave.High mesh grid resolutions and appropriate numerical methods are required to capture accurately the length scales ofthe complex mechanisms responsible for the start of the breaking (small plunging jet, white foam, etc.). Numericalworks usually showed better agreements when simulating plunging breaking waves than the spilling case comparedwith available experimental data. Kimmoun and Branger (2007) recently experimented surf-zone breaking waves.Detailed pictures showed a short spilling event occurred at the crest of the waves, before degenerating into strongplunging breaker. This work is devoted to the qualitative comparison of our numerical results with the experimentalobservations, as we will focus on capturing and describing the spilling phase experimented.

【 授权许可】

Unknown