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dc.contributor.authorOwen, Herbert
dc.contributor.authorHouzeaux, Guillaume
dc.contributor.authorSamaniego, Cristobal
dc.contributor.authorLesage, Anne C.
dc.contributor.authorVázquez, Mariano
dc.contributor.otherBarcelona Supercomputing Center
dc.identifier.citationOwen, Herbert [et al.]. Recent ship hydrodynamics developments in the parallel two-fluid flow solver Alya. "Computers & Fluids", 10 Juliol 2013, vol. 80, p. 168-177.
dc.description.abstractCFD modeling of turbulent free surface flows has become an important tool in the design of ship hulls. A two-fluid flow solver that can predict the flow pattern, free surface shape and the forces on the ship hull is presented. The discretization is based on unstructured linear finite elements, tetrahedras and prisms. A Variational Multiscale Stabilization technique known as Algebraic Sub Grid Scale Stabilization (ASGS) is used to deal with convection dominated flows and allow for equal order velocity–pressure interpolations. A fixed grid method that captures the position of the interface with the Level Set technique is used to simulate the two-phase flow. The jump in the fluid properties is smoothed in a region close to the interface. Spalart Allmaras and SST k–ω turbulence models have been tested without showing significant differences. The need to accurately predict the viscous forces on the ship hull has motivated the use of anisotropically refined prism elements close the hull. Such meshes have challenged the capabilities of the equation based reinitialization techniques that we had previously used for the Level Set method.
dc.format.extent10 p.
dc.rightsAttribution-NonCommercial-NoDerivs 4.0 International License
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Impacte ambiental
dc.subject.lcshLevel set methods
dc.subject.lcshTurbulent flow
dc.subject.otherIncompressible two-phase flows
dc.subject.otherStabilized finite element methods
dc.subject.otherLevel set
dc.subject.otherShip hydrodynamics
dc.titleRecent ship hydrodynamics developments in the parallel two-fluid flow solver Alya
dc.subject.lemacFluxos (Sistemes dinàmics diferenciables)
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.publicationNameComputers & Fluids

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