Numerical Simulation of the Effect of Tank Shape on Sloshing Using Smoothed Particle Hydrodynamics

Abstract Sloshing is the violent motion of a resonant fluid in moving tank. When moves and interacts with tank, dynamic pressure from such an interaction can cause large deformations tank walls structure. In this study, 3D numerical simulation was carried out five variations LNG ship model: prismatic, rectangular, tube, spherical, new model filling ratio 25%. Forced oscillation roll f = 1.04 Hz amplitude movement 8.66°. Smoothed Particle Hydrodynamics Lagrangian meshless (non-grid) method known as mesh-free computational dynamics. This very appropriate for sloshing phenomenon because closely related to free surface motion. Advanced visualization performed using Blender version 2.92, more realistic attractive than conventional SPH post-processing. The results study indicate that different shapes influence reducing value. It found effective shape tube reduced value 9% 11%.