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    Forces on a cruciform/sphere structure in uniform current

    Forces on a cruciform/sphere structure in uniform current


    Experiments have been conducted on a cruciform structure in uniform flow. The cruciform consists of two intersecting cylinders and a center sphere and is assumed to mimick two twines (cylinders) that meet in a knot (sphere). The experiments are motivated by the need for a better understanding of drag forces acting on net based structures such as fish farms. The cruciform model was designed so that is it was possible to isolate the forces acting on the separate cylinders from the forces acting on the sphere only. It was found that the cylinders in the cruciform experienced a drag coefficient similar to established measurements of a cylinder in uniform flow (Cd≈1.0). The sphere, however, experienced a drag coefficient that was between two and three times higher (Cd in the area 1.1 to 1.6) that what previously have been found for a single sphere in uniform flow (Cd≈0.5).

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    Titel :

    Forces on a cruciform/sphere structure in uniform current

    Beteiligte:
    Lader, Pal (Autor:in) / Enerhaug, Birger (Autor:in) / Fredheim, Arne (Autor:in) / Klebert, Pascal (Autor:in) / Pettersen, Björnar (Autor:in)
    Erschienen in:

    Ocean Engineering ; 82 ; 180-190

    Erscheinungsdatum :

    2014

    Format / Umfang :

    11 Seiten, 16 Quellen

    ISSN :

    0029-8018

    DOI :

    https://doi.org/10.1016/j.oceaneng.2014.03.007

    Medientyp :

    Aufsatz (Zeitschrift)

    Format :

    Print

    Sprache :

    Englisch

    Schlagwörter :

    Hydrodynamik , Strömungswiderstand , Meerestechnik , gleichförmige Strömung , Widerstandskoeffizient

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