Numerical modelling of wind effects on breaking waves and moving body problems

Zhihua Xie, Centre for Computational Fluid Dynamics, University of Leeds

A two-phase flow model is addressed in this study to investigate effects of wind on breaking solitary waves, by solving the Reynolds-averaged Navier-Stokes (RANS) equations simultaneously for the flows both in the air and water, in which the free surface is calculated by the Volume-of-Fluid (VOF) method. First, the proposed model was validated with the experiment of a breaking solitary wave without wind on a 1:19.85 impermeable beach, and then the splash up of the breaking solitary wave on a 1:15 impermeable beach was simulated and compared with the experiment. After that the wind effects were taken into account for modelling breaking solitary waves.

Some fluid structure interaction with moving body problems like water wave maker, water entry and exit of a cylinder or wedge were simulated and will be shown in this talk.