Numerical investigation of sloshing flow interaction with porous baffles in a 2D rectangular tank

Abstract

In practical applications of ocean engineering, porous structures are usually used to enhance the efficiency of anti-sloshing performance, the porous media model is widely applied to predict resistance to fluid flow due to porous structures. To this end, the code used to solve the interaction between the porous structure and fluid flow is first extended to consider the interaction of the porous baffle with the sloshing flow, then we redefined the coefficients of the porous media model so that makes it more reliable to analysis the influence of the porous baffle on sloshing flow. The reliability of the code extension is verified by comparison with the experimental data. The verified porous media model is then introduced to investigate the anti-sloshing performance for various baffle parameters. Results reveal that differing from the issues for wave-porous structure interaction, the coefficients for linear and nonlinear terms are recommended to be set as 400 and 1.0, respectively, and dominant factors for generating and developing vortex structures vary in different situations.