ANALYSIS OF SLOSHING SUPPRESSORS IN LIQUEFIED NATURAL GAS CARRIERS TANKS

Resumo

The problem of sloshing has been studied in the last decades, seeking to reduce the
deleterious effects promoted by this phenomenon in liquefied natural gas carriers tanks. Since there is
a need to develop tank designs capable of reducing the damaging effects of sloshing, a study on the
hydrodynamic loads involving the fluid-structure relationship becomes necessary. In this work,
attenuation devices were installed to reduce the effect of sloshing on containers, such as deflector
blades positioned on tank walls. Regarding this topic, our work was devoted to testing two types of
sloshing suppressor bulkheads, where two different heights were assigned and tested for the first
vertical deflector located in the center of the tank. Secondly we change the morphology of the baffle,
leaving it in the shape of an arrow pointing upwards. The results show that the baffles can be efficient
mechanisms for the suppression of slonging and that there is a strongly relationship between the
height of the baffles and the level of fluid filling in relation to the tank.