Single-phase and Two-phase Smoothed Particle Hydrodynamics for Sloshing in the Low Filling Ratio of the Prismatic Tank

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Trimulyono A.; Chrismianto Deddy; Samuel S.; Aslami M.H.

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Journal Paper

Paper Information

Journal: International Journal of Engineering Year:2021 | Volume:34 | Issue:5 Page(s): 1345-1351

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Title

Single-phase and Two-phase Smoothed Particle Hydrodynamics for Sloshing in the Low Filling Ratio of the Prismatic Tank

Author(s)

Trimulyono A. | Chrismianto Deddy | Samuel S. | Aslami M.H. | Issue Writer Certificate

Keywords

Smoothed particle hydrodynamics

Prismatic tank

Hydrostatic pressure

Dynamics pressure

Free surface deformation

Abstract

The present study is to carry out a numerical sloshing using Smoothed particle hydrodynamics (SPH) in the Prismatic tank. Sloshing is a violent flow caused by the resonance of fluid in the tank by external oscillation. The Prismatic tank was used to resemble a membrane LNG type carrier. The sloshing experiment was carried out using three pressure sensors, a camera high resolution, and four degrees of freedom forced oscillation machine. In this study, a filling ratio of 25% was used to reproduce sloshing in a low filling ratio. Only roll motion is used in the numerical simulation. Roll motion is directly imposing from the experiment displacement, and a comparison of hydrostatic and dynamic pressure was made to validate the SPH result. The time duration of the sloshing is the same as the experiment. Single-phase and multiphase SPH are conducted to reproduce sloshing in the Prismatic tank. Sloshing was done both for the 2D and 3D domain. It shows that SPH has a good agreement with analytical and experimental results. The dynamic pressure is similar to an experiment through a spurious pressure oscillation exist. The Dynamics pressure results show fairly for short time simulation and slightly decrease after that. The Free surface deformation tendency is similar to experiment.

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