Simulation of Wave Mixing of Surface Layers in the Sea Area

Abstract

A problem of surface waves simulation is considered there in the context of combating oil spills. Being independent of waves penetrating into water, oil is disposed in sea as floating surface slicks and as drops suspended in water thickness. An oil surface slick incurs of transferring by wind and current actions, on the one hand, and of a variety of transforming processes, on the other hand. Gravitational spreading is one of the most influent transforming processes for oil on the sea surface. Among physical problems, there are dynamics of thin films of petroleum products on the sea surface and the need to consider moving on the waved sea-atmosphere border. The oil penetration into the water thickness occurs during the dispersion process --- of the transfer of oil from the water surface to the water phase as a result of wave collapse. The carried away oil splits into drops of different sizes which spread and diffuse into the water thickness. The factors such as droplet size, buoyancy, and turbulence affect dispersion stability. The main sources of dispersion energy are collapsing waves formed by wind on the surface of a water body. We suggest using a 2D surface wave model based on the dynamics of interacting particles. In contrast to complex hydrodynamic and spectral models, that makes it possible to estimate quite simply and effectively the proportion of dispersed oil pollution carried from the surface to the depth of the sea area.