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An Investigation of Vortex Shedding Below the Keel of a Floating Offshore Vessel in Waves

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Unsteady Turbulent Shear Flows

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Abstract

This paper presents a theoretical analysis for modelling the vortex shedding from the submerged keel edges of a flat-bottomed barge. The analysis is capable of computing the resultant added damping forces which can be superimposed on the results from potential flow theory to arrive at a more accurate assessment of barge roll motions in waves. The results of small and large scale tests aimed at verifying the validity of the model are also presented.

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References

  1. Clements, R.R.: An inviscid model of two-dimensional vortex shedding. J. of Fluid Mechanics, 57, Pt. 2, (1973).

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  2. Lua, A.B.: An experimental study of the damping forces on flat- bottomed barges during roll and pitch motions. Department of Mechanical Engineering, University College London, M.Sc. thesis, October 1978.

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  3. Patel, M.H.: The influence of vortex shedding on the roll motions of a flat-bottomed barge. Paper presented at Euromech 119 Colloquium on Vortex Shedding from Bluff Bodies in Oscillating Flow - Imperial College of Science & Technology, London, l6–l8 July 1979.

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  4. Petrides, P.C.: Investigation of flat-bottomed barge motions due to wave excitation. Department of Mechanical Engineering, University College London, M.Sc. thesis, October 1980.

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  5. Eatock Taylor, R. and Waite, J.B.: The dynamics of offshore structures evaluated by boundary integral techniques. Inter¬national J. for Num. Methods in Engineering, 13, (1978).

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Author information

Authors and Affiliations

  1. London Centre for Marine Technology Department of Mechanical Engineering, University College London, London, UK

    D. T. Brown & M. H. Patel

Authors
  1. D. T. Brown
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  2. M. H. Patel
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Editor information

Editors and Affiliations

  1. Centre d’Études et de Recherches de Toulouse, Office National d’Études et de Recherches Aérospatiales, 2, avenue Edouard Belin, 31055, Toulouse, France

    R. Michel , J. Cousteix  & R. Houdeville ,  & 

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© 1981 Springer-Verlag, Berlin, Heidelberg

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Brown, D.T., Patel, M.H. (1981). An Investigation of Vortex Shedding Below the Keel of a Floating Offshore Vessel in Waves. In: Michel, R., Cousteix, J., Houdeville, R. (eds) Unsteady Turbulent Shear Flows. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-81732-8_27

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  • DOI: https://doi.org/10.1007/978-3-642-81732-8_27

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-81734-2

  • Online ISBN: 978-3-642-81732-8

  • eBook Packages: Springer Book Archive

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