Abstract
The Smoothed Particle Hydrodynamics (SPH) method has become one of the most promising methods for violent wave impact simulations. In this paper, the incompressible SPH (ISPH) method will be used to simulate liquid sloshing in a 2D tank with complex baffles. Firstly, the numerical model is validated against the experimental results and the simulations from commercial CFD software STAR-CCM+ for a sloshing tank without any baffle. Then various sloshing tanks are simulated under different conditions to analyze the influence of the excitation frequency and baffle configuration. The results show that the complex baffles can significantly influence the impact pressures on the wall caused by the violent sloshing, and the relevant analysis can help find the engineering solutions to effectively suppress the problem. The main purpose of the paper is to study the practical importance of this effect.
Highlights
The phenomenon of liquid sloshing is frequently observed in marine and offshore engineering.It occurs in a partially filled container due to external excitation on the inside liquid
If the excitation frequency is close to the natural frequency of the tank, the liquid container is subject to tremendous impact load, which may cause serious damage to the hull structure
It essentially projects the intermediate velocity of particles onto a divergence-free space or their intermediate density onto a density-invariance field by solving a pressure Poisson equation based on strict hydrodynamic formulations [23]
Summary
The phenomenon of liquid sloshing is frequently observed in marine and offshore engineering.It occurs in a partially filled container due to external excitation on the inside liquid. If the excitation frequency is close to the natural frequency of the tank, the liquid container is subject to tremendous impact load, which may cause serious damage to the hull structure. Such a consequence would be very serious in engineering practice [1]. The common techniques for analyzing the sloshing problem include theoretical, experimental, and numerical methods Theoretical approaches, such as the analytical solution [2,3,4] or the potential flow theory based method [5,6], can be used to study sloshing tanks of relatively simple geometry and internal structure.
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