Wednesday 1 June 2016

MODELLING OF LIQUID PROPELLANT SLOSHIN A RECTANGULAR TANK BY VARYING BAFFLE HEIGHTS. -

Sloshing occurs in fractionally-filled containers that undergoes accelerated motion. It is a phenomenon of fluid-structure interaction. A study of a rectangular fuel tank filled with kerosene was simulated in this paper using Volume of Fluid (VOF) multiphase model. Simulations compared the velocity, turbulence and wall shear stress in the tank by varying the baffle heights. CFD analysis was carried out using a commercial finite volume package ANSYS FLUENT 16.0. The tank was set into motion by giving an acceleration of 9.81 m/s2 in the Z direction. It was found from the CFD simulations that the sloshing in the fuel tank was significantly reduced with the introduction of baffles in the fuel tank. The damping effect of the baffles was clearly visible in the tank with baffles that is 50% of its total height from the obtained results. Further research can be undertaken by introducing holes and by varying the size of the holes in the baffles in order to further reduce the sloshing in the fuel tank. - See more at: 

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