Water entry of an elastic conical shell

Khabakhpasheva, T. I. ORCID: https://orcid.org/0000-0003-4058-0508, Korobkin, A. A. ORCID: https://orcid.org/0000-0003-3605-8450 and Malenica, S. (2024) Water entry of an elastic conical shell. Journal of Fluid Mechanics, 980. ISSN 0022-1120

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The axisymmetric problem of a conical shell impact onto an inviscid and incompressible liquid of infinite depth is studied. The shell is thin, and its deadrise angle is small. The problem is inertia dominated. Gravity, surface tension and viscous effects are not taken into account. The hydrodynamic loads acting on the shell and the shell displacements are determined at the same time. The model by Scolan (J. Sound Vib., vol. 277, issue 1–2, 2004, pp. 163–203) is used to find the flow and hydrodynamic pressure caused by the shell impact. This model is based on the Wagner theory of water impact, which was generalised to axisymmetric problems of hydroelastic slamming. Dry and wet modes of the conical shell, as well as the corresponding frequencies, are calculated. It is shown that a conical shell can be approximated by a circular plate only for a very small deadrise angle. Deflections and strains in the conical shell during the impact stage, when the wetted part of the shell increases at high rate, as well as the hydrodynamic loads, are determined and analysed.

Item Type: Article
Additional Information: Funding information: T.Kh. and A.K. gratefully acknowledge the financial support received from the University of East Anglia through Pro-Vice-Chancellor Impact Fund and Associate Dean Research Impact Fund within the grant ‘Wave Slamming’.
Uncontrolled Keywords: wave–structure interactions,general fluid mechanics,wave-structure interactions,condensed matter physics,mechanics of materials,mechanical engineering,applied mathematics ,/dk/atira/pure/subjectarea/asjc/3100/3104
Faculty \ School: Faculty of Science > School of Mathematics
UEA Research Groups: Faculty of Science > Research Groups > Fluid and Solid Mechanics
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Depositing User: LivePure Connector
Date Deposited: 22 May 2024 10:30
Last Modified: 28 May 2024 13:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/95282
DOI: 10.1017/jfm.2024.17


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