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    Ship squat in non-uniform water depth

    Access Status
    Fulltext not available
    Authors
    Gourlay, Tim
    Date
    2013
    Type
    Conference Paper
    
    Metadata
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    Citation
    Gourlay, Tim P. 2013. Ship squat in non-uniform water depth, in Turner, I.L. and Couriel, E.D. (ed), Proceedings of the Coasts and Ports Australasian conference, Sep 11-13 2013. Sydney, Australia: National Committee for Coastal and Ocean Engineering (Engineers Australia) and PIANC Australia and the Institute of Professional Engineers New Zealand (IPENZ).
    Source Title
    Coasts and Ports 2013, Sydney
    Source Conference
    Coasts and Ports 2013, Sydney
    Additional URLs
    http://cmst.curtin.edu.au/local/docs/pubs/gourlay_2013_ship_squat_in_non_uniform.pdf
    URI
    http://hdl.handle.net/20.500.11937/23211
    Collection
    • Curtin Research Publications
    Abstract

    The problem of predicting ship squat in non-uniform water depth is studied in this paper. For transverse depth variations, calculations are done using slender-body shallow-water theory, as implemented in the code “ShallowFlow”. Examples are given for realistic ships transiting dredged channels, and the effect of channel width on ship squat is discussed. Further examples are given for ships transiting canals such as the new Panama Canal. It is found that in a typical dredged channel, midship squat can be in the order of 20% larger than in open water of the same depth, while dynamic trim is essentially unchanged. In canals such as the new Panama canal, midship sinkage can be 100% larger than in open water of the same depth.

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    • Ship squat in water of varying depth
      Gourlay, Tim (2003)
      Two theories are described which predict ship squat in water of varying depth. Firstly, a one-dimensional theory is proposed for a ship in a narrow channel of varying depth. This is solved analytically in the case of a ...
    • Shallowflow: A program to model ship hydrodynamics in shallow water
      Gourlay, Tim (2014)
      In this article we present details of “ShallowFlow”, a computer program to model the hydrodynamic flow around ships in calm shallow water. The program is based on slender-body shallow-water theory. Outputs from the program ...
    • Shallowflow: A program to model ship hydrodynamics in shallow water
      Gourlay, Tim (2014)
      Copyright © 2014 by ASME. In this article we present details of "ShallowFlow", a computer program to model the hydrodynamic flow around ships in calm shallow water. The program is based on slender-body shallow-water theory. ...
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