A Method of Assessment of the Liquid Sloshing Impact on Ship Transverse Stability | Zendy

P. Krata | Zendy

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A Method of Assessment of the Liquid Sloshing Impact on Ship Transverse Stability

Author(s) -

P. Krata

Publication year - 2014

Publication title -

transnav the international journal on marine navigation and safety of sea transportation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.253

H-Index - 5

eISSN - 2083-6481

pISSN - 2083-6473

DOI - 10.12716/1001.08.04.07

Subject(s) - slosh dynamics , transverse plane , stability (learning theory) , moment (physics) , longitudinal static stability , computational fluid dynamics , mechanics , engineering , structural engineering , marine engineering , computer science , physics , classical mechanics , machine learning , aerodynamics

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.

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