Using computational fluid dynamics for wave generation and evaluation of results in numerical wave tank modelling

Abstract

In this paper, computational modeling of wave generation and evaluation of results are given. The analysis of Computational Fluid Dynamics is performed in the ANSYS Fluent module. The model of numerical analysis is made time-dependent. The Numerical Wave Tank is an engineering research equipment for studying sea waves that requires the least amount of people and materials. The Numerical Wave Tank may be used to simulate the motion of the ocean and sea waves with a modeled moving wall as a wave-maker. To generate regular gravity waves, a Numerical Wave Tank based on Reynolds Averaged Navier Stokes equations and the Volume of Fluid technique is modeled using Dynamic Mesh Technique. Wave heights, water depths, wavelength and wave periods are chosen variable parameters. Water volume fraction, velocities, turbulence kinetic energy and dynamic pressure are evaluated results. A brief explanation of how to generate waves influence is made.

Keywords

• computational fluid dynamics
• volume of fluid method
• numerical wave tank
• dynamic mesh technique
• user defined function