A comparative study of different baffles on mitigating liquid sloshing in a rectangular tank due to a horizontal excitation

Abstract

Purpose -The purpose of this paper is to investigate different baffles on mitigating liquid sloshing in a rectangular tank due to a horizontal excitation and to find out the optimal selection of sloshing mitigation for practical applications. Design/methodology/approach -The numerical study is conducted by using a proven improved smoothed particle hydrodynamics (SPH), which is convenient in tracking free surfaces and capable of obtaining smooth and correct pressure field. Findings -Liquid sloshing effects in a rectangular tank with vertical middle baffles, horizontal baffles, T-shape baffles and porous baffles are investigated together with those without any baffles. It is found that the existence of baffles can mitigate sloshing effects and the mitigation performance depends on the shape, structure and location of the baffles. Considering the balance of sloshing mitigation performance and the complexity in structure and design, the I shaped and T shaped baffles can be good choices to mitigate sloshing effects. Practical implications -The presented methodology and findings can be helpful in practical engineering applications, especially in ocean engineering and problems with large sloshing effects. Originality/value -The SPH method is a meshfree, Lagrangian particle method, and therefore it is an attractive approach for modeling liquid sloshing with material interfaces, free surfaces and moving boundaries. In most previous literature, only simple baffles are investigated. In this paper, more complicated baffles are investigated, which can be helpful in practical applications and engineering designs.

Application of the peridynamic differential operator to the solution of sloshing problems in tanks

“…Installing baffles inside liquid tanks is also a crucial issue in liquid sloshing problems (Liu and Lin, 2009;Shao et al, 2015). Because of usually baffles are very thin, many numerical methods are still incapable of capturing the detailed flow phenomenon near the baffle tip.…”

New design concept of a tank made of plastic material for firefighting vehicle

“…Therefore, chemical resistance and non-toxicity may be the key factors in this new kind of tank. The geometry of baffles also plays an important role in avoiding the effect of fluid slosh [28,29]. Moreover, the effects of baffles on the performance of the vehicle have been presented in the literature, in particular on the dynamic behaviour of the braking phase [30,31].…”

“…Table 1 shows that the minimum safety coefficient of the last load and with all load conditions as 1, 5, respectively. [28,29,42], both to provide the highest possible head loss and guarantee an appropriate safety factor. Based on the determination of internal and external plates, an overall analysis was performed on the structural mechanical behaviour of the tank (in terms of stresses and displacements).…”

The influence of obliquely perforated dual-baffles on sway induced tank sloshing dynamics

“…They demonstrated that different types of perforated plates are all effective on damping the run-up and impact pressure along the bulkhead. Shao et al 31 investigated the influence of different baffle configurations on mitigating liquid sloshing in a rectangular tank subject to sway induced excitation. They concluded that effectiveness of the solution depends on the shape, structure, and location of the baffles.…”