ROLL MOTION: 2D EXPERIMENTAL ACTIVITY (Rapporti progetti di ricerca)

Type
Label
  • ROLL MOTION: 2D EXPERIMENTAL ACTIVITY (Rapporti progetti di ricerca) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Alternative label
  • Fabbri, Luigi (1) Palini, Massimo (1) Lugni, Claudio (1) (2003)
    ROLL MOTION: 2D EXPERIMENTAL ACTIVITY
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Fabbri, Luigi (1) Palini, Massimo (1) Lugni, Claudio (1) (literal)
Pagina inizio
  • 1 (literal)
Pagina fine
  • 675 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://puma.isti.cnr.it//linkdoc.php?idauth=62&idcol=41&icode=2003-EC-001&authority=cnr.insean&collection=cnr.insean&langver=it (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 675 (literal)
Note
  • PuM (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) INSEAN, Roma - Istituto Nazionale per Studi ed Esperienze di Architettura Navale (literal)
Titolo
  • ROLL MOTION: 2D EXPERIMENTAL ACTIVITY (literal)
Abstract
  • Rapid advancements in computational fluid dynamics (CFD) have enabled solution of increasingly complex ship flow simulations. For development and validation of CFD codes, much more detailed model-scale, surface ship experiment data is required. Official issues from ITTC 1999 require explicitly EFD and CFD to be more and more interlaced in order to provide reliable tools for fluid physics understanding. More in detail, EFD should be able to provide highly reliable, time- and space-refined data-sets for CFD code validation. This requires a considerable effort in designing and executing experiments that consider more real world flow conditions and address a variety of physics of interest with advanced measurement techniques. For these reasons, in the following an experimental campaign with the measurement of the flow field around to 2D body (ashlar) with section coincident to that one of a ship has been developed. Global and local quantities have been measured. Unsteady conditions of the flow have been studied. Firstly the hydrodynamic field caused by the forced roll motion of the body in calm water (radiation test) has been investigated. Measurements of wave elevations and of velocity field by using the PIV technique have been performed. Then the body has been fixed, and a regular wave system interacted with him (diffraction test). Forces, wave elevation and PIV measurements of the velocity field around the body have been carried out. Finally the motion of the body interacting with an incident wave system has been considered. Obviously in this case the ashlar was free to respond to the regular wave train. The experimental campaign was successfully performed and the data will be presented in this document. (literal)
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