In this paper, the sloshing response of liquid in a two dimensional rigid rectangular tank with rigid baffles is investigated using boundary element technique. A baffle is a supplementary structural element which supplies a kind of passive control on the effects of ground shaking. The complicated liquid domain is divided into two simple sub-domains so that the liquid velocity potential in each ...

Sloshing is one of challenging problem in the free surface flow, because dealing with large deformation fluid. The present paper was carried out numerical sloshing prismatic tank that resemble LNG membrane type carrier. Pressure sensor used to validate dynamic pressure low filling ratio tank. Forced oscillation motion sway f = 1.08 Hz and amplitude 6.52 mm. A single, double vertical baffles are...

Sloshing is a common flow phenomenon in liquid cargo tanks and has great negative impact on the stability safety of ship navigation. It important to understand sloshing process under excitation complex external conditions for transportation cargo. In this paper, characteristics tank are studied combination roll surge. The pressure distribution at different positions discussed, along with influe...

In the conventional ship-motion analysis, the effects of inner free surface have been usually ignored. Recent experimental and numerical studies have shown that the coupling effect between liquid cargo sloshing and LNG(Liquefied Natural Gas) ship motion can be significant at certain frequency range of partially filled tanks. This is of great concern to the LNG FPSO/FSRU operation in the product...

This paper presents ExxonMobil’s evolution of a direct sloshing assessment methodology to resolve several challenging technical issues that are essential for evaluating the integrity of LNG containment systems. Among the most significant developments is the introduction of a probabilistic-based framework that facilitates modeling of the high variability of sloshing impact pressures due to slosh...

OF DOCTORAL DISSERTATION HELSINKI UNIVERSITY OF TECHNOLOGY P.O. BOX 1000, FI-02015 TKK http://www.tkk.fi Author Kristjan Tabri Name of the dissertation Dynamics of Ship Collisions Manuscript submitted 30.09.2009 Manuscript revised 10.12.2009 Date of the defence 09.02.2010 Monograph Article dissertation (summary + original articles) Faculty Faculty of Engineering and Architecture Department Depa...

Abstract In this paper, a nonlinear reduced-order model based on neural networks is introduced in order to vertical sloshing presence of Rayleigh–Taylor instability the free surface for use fluid–structure interaction simulations. A box partially filled with water, representative wing tank, first set harmonic motion via controlled electrodynamic shaker. Accelerometers and load cells at interfac...

In this paper the potential flow approach adopted in previous investigations for the coupling effect between rigid body ship motion and sloshing is extended to the flexible ship-partially filled tank system, using the de-singularised Rankine source method. The unified method is verified by applying it to the sloshing in a partially filled rectangular tank with a flexible wall. The main aim of t...