Experimental and numerical investigation of sloshing in anti-roll tank using effective gravity angle

J. Ercolanelli , M. Le Boulluec (1) , Yves-Marie Scolan (2) , Aurélien Babarit (3) , Philippe Magaldi

1 IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer
2 IRDL - Institut de Recherche Dupuy de Lôme
3 LHEEA - Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique

Anti-roll tanks (ART) are commonly used by naval architects to deal with the lightly damped roll motion. As well as improving the roll behavior even at low or zero speed, they offer the advantage of simplicity, low cost and no extra added resistance. The investigation carried out in the present research takes part in the design and optimization of a new concept of passive anti-roll tank driven by non-linear free-surface flow phenomena and bathtub vortex (figure 1). In addition to harnessing the roll stabilizing moment from the sloshing of liquid, the kinetic energy of the vortex can be harvested using water turbines providing a new source of energy on board. The bathtub vortex (figure 2) have been studied both experimentally and numerically by Fourestier [1, 2]. Here, the focus is on the experimental and numerical modelling of the free-surface flow to properly account for the effect of sloshing in the ship global response.

Domains: Engineering Sciences [physics]; Mechanics [physics.med-ph]; Structural mechanics [physics.class-ph]

J. Ercolanelli, M. Le Boulluec, Yves-Marie Scolan, Aurélien Babarit, Philippe Magaldi. Experimental and numerical investigation of sloshing in anti-roll tank using effective gravity angle. 33rd International Workshop on Water Waves and Floating Bodies, Apr 2018, Guidel-Plage, France. pp.4 - 7. ⟨hal-02187371⟩