Hydrodynamics of Planing Hulls in Asymmetric Conditions (Contributo in atti di convegno)

Type
Label
  • Hydrodynamics of Planing Hulls in Asymmetric Conditions (Contributo in atti di convegno) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Alternative label
  • Broglia, R., Iafrati, A. (2010)
    Hydrodynamics of Planing Hulls in Asymmetric Conditions
    in 28th Symposium on Naval Hydrodynamics, Pasadena, California, USA, 12-17 September 2010
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Broglia, R., Iafrati, A. (literal)
Pagina fine
  • 12 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-INSEAN (literal)
Titolo
  • Hydrodynamics of Planing Hulls in Asymmetric Conditions (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
  • 9781618392992 (literal)
Abstract
  • The flow about a hard-chine, wedge shaped hull in steady planing conditions is simulated numerically by a Reynolds-Averaged Navier-Stokes Equation based solver. The main purpose of the study is the understanding of the changes induced by a heel angle on the flow, the pressure distribution and free surface shape. It is shown that the non zero heel angle induces a pressure growth at the heeled side and a reduction at the opposite one. A corresponding variation of the spray occurs, with a longer and thinner jet on the heeled side and a shorter and thicker jet on the other. It is shown that the pressure difference at the two sides induces a cross flow just beneath the keel line, which takes the largest intensity at the fore part. Because of the cross flow, a stagnation point is also formed at the heeled side. Comparisons are established with results obtained for the two-dimensional water entry flow of an inclined wedge and with some experimental measurements available in literature. (literal)
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