Abstract
In this paper, we present a sharp interface method for the large-eddy simulation of breaking waves generated by immersed bodies. Our method is based on the level set formulation for two-phase incompressible flows, in which the interface between two immiscible fluids, e.g., air and water, is represented by the zero level set. The density jump and pressure jump due to surface tension are treated in a sharp interface manner using a boundary condition capturing method (ghost fluid method). The immersed bodies are treated using a sharp interface direct forcing immersed boundary method. A Lagrangian dynamic Smagorinsky subgrid-scale model is adopted for the large-eddy simulations of turbulent two-phase flows. The numerical method is validated using several examples, such as 2D solitary wave propagation, 2D dam-break problem, and 3D rising bubble. And the large-eddy simulations of breaking waves generated by a submerged hydrofoil and a surface-mounted bump are described in detail.
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