Medium-speed catamarans are under development as a new class of vessels to meet requirements for highly efficient sea transportation with low environmental impact. Reduced service speed and increased deadweight will increase transport efficiency. Compared to current high-speed catamarans, these new vessels will operate in a transitional speed range between high-speed craft and conventional displacement ships. In this paper, design guidelines to choose appropriate main dimensions for medium speed catamarans with minimum resistance were derived and a preliminary design was made. These vessels will operate at Froude numbers of about 0.35 and have a relatively low prismatic coefficient of about 0.5 in conjunction with a small transom immersion. Different methods are discussed to correctly predict the calm water resistance, with RANSE (Reynolds-averaged Navier-Stokes equations)-based flow simulations being the most promising. It is shown that they are capable of predicting the hydrodynamic characteristics of medium-speed catamarans, such as drag force, trim and sinkage with acceptable accuracy.


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    Titel :

    A Practical Design Approach including Resistance Predictions for Medium-speed Catamarans


    Beteiligte:
    Haase, Max (Autor:in) / Davidson, Gary (Autor:in) / Thomas, Giles (Autor:in) / Binns, Jonathan (Autor:in) / Bose, Neil (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2013-01-01


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    A practical design approach including resistance predictions for medium-speed catamarans

    Haase, Max / Davidson, Gary / Thomas, Giles et al. | Tema Archiv | 2013


    Calm Water Powering Predictions for High-Speed Catamarans

    Couser, P. / Molland, A. F. / Armstrong, N. et al. | British Library Conference Proceedings | 1997


    Database Design for High Speed Catamarans

    Latorre, R. / Vasconcellos, J. M. A. / Royal Institution of Naval Architects | British Library Conference Proceedings | 1995


    Catamarans

    Online Contents | 1995