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2023 Journal Impact Factor - 0.7
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ISSN 2083-6473
ISSN 2083-6481 (electronic version)
Editor-in-Chief
Associate Editor
Prof. Tomasz Neumann
Published by
TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
81-345 Gdynia, POLAND
e-mail transnav@umg.edu.pl
A Method of Assessment of the Liquid Sloshing Impact on Ship Transverse Stability
P. Krata 1
1 Gdynia Maritime University, Gdynia, Poland
ABSTRACT: Liquid sloshing phenomenon taking place in partly filled ships? tanks directly affects the stability of a vessel. However, only static calculations are carried out onboard ships nowadays and static transfer of liquid weight is taken into account in the course of routine stability calculation. The paper is focused on a dynamic heeling moment due to liquid sloshing in tanks onboard ships. The set of numerical simulations of liquid sloshing taking place in moving tanks is carried out. The realistic range of geometric parameters is taken into account. The conducted CFD simulations are experimentally verified. Finally, the method of an assessment of the liquid sloshing impact on ship transverse stability is worked out. The key point of the method is a dynamic coefficient describing relation of the researched dynamic heeling moment and the quasi-static one in terms of dynamic stability of a vessel which is related to the weather criterion of ship stability assessment.
KEYWORDS: Ship Stability, Hydrodynamics, Computational Fluid Dynamics (CFD), Dynamic Heeling Moment, Liquid Sloshing, Ship Operation, Liquid Sloshing Phenomenon, Ship Transverse Stability
REFERENCES
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Krata P., Jachowski J., Wawrzyński W., Więckiewicz W., The dynamic heeling moment due to liquid sloshing in partly filled wing tanks for varying rolling period of seagoing vessels, Marine Navigation and Safety of Sea Transportation – Weintrit & Neumann (ed.), Vol. Maritime Transport & Shipping, Chap. Hydrodynamics and Ship Stability, CRC Press Taylor & Francis Group – Balkema Book, pp. 303-310, Boca-Raton-London-New York-Leiden 2013.
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Krata P., Wawrzyński W., Więckiewicz W., Jachowski J., Ship’s ballast tanks size and dimensions review for the purpose of model research into the liquid sloshing phenomenon, Scientific Journals of Maritime University of Szczecin, 29(101) pp. 88–94, Szczecin 2012.
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Citation note:
Krata P.: A Method of Assessment of the Liquid Sloshing Impact on Ship Transverse Stability. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 8, No. 4, doi:10.12716/1001.08.04.07, pp. 535-541, 2014
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