• Stabilized edge-based finite e...

Treffer: Stabilized edge-based finite element simulation of free-surface flows

Title:
Stabilized edge-based finite element simulation of free-surface flows
Authors:
ELIAS, Renato N, COUTINHO, Alvaro L. G. A
Source:
Stabilized, multiscale and multiphysics methodsInternational journal for numerical methods in fluids. 54(6-8):965-993
Publisher Information:
Chichester: Wiley, 2007.
Publication Year:
2007
Physical Description:
print, 49 ref
Original Material:
INIST-CNRS
Subject Terms:
Mechanics acoustics, Mécanique et acoustique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Domaines classiques de la physique (y compris les applications), Fundamental areas of phenomenology (including applications), Mécanique des fluides, Fluid dynamics, Méthodes de calcul en mécanique des fluides, Computational methods in fluid dynamics, Ondes en hydrodynamique, Hydrodynamic waves, Sciences appliquees, Applied sciences, Batiment. Travaux publics, Buildings. Public works, Travaux hydrauliques, Hydraulic constructions, Barrages et installations annexes, Dams and subsidiary installations, Action vague, Wave effect, Acción onda, Algorithme parallèle, Parallel algorithms, Barrage, Dams, Ecoulement surface libre, Free surface flow, Flujo superficie libre, Génération maille, Mesh generation, Modélisation, Modelling, Mécanique fluide numérique, Computational fluid dynamics, Méthode élément fini, Finite element method, Rupture, Ruptures, Simulation numérique, Digital simulation, edge-based formulation, free surface, interface capturing, stabilized finite elements, volume-of-fluid
Time:
4711, 4735
Document Type:
Konferenz Conference Paper
File Description:
text
Language:
English
Author Affiliations:
Center for Parallel Computations and Department of Civil Engineering, Federal University of Rio de Janeiro, P.O. Box 68506, RJ 21945-970-Rio de Janeiro, Brazil
ISSN:
0271-2091
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=18888654
Rights:
Copyright 2007 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Building. Public works. Transport. Civil engineering

Physics: fluid mechanics
Accession Number:
edscal.18888654
Database:
PASCAL Archive

Weitere Informationen

Free-surface flows occur in several problems in hydrodynamics, such as fuel or water sloshing in tanks, waves breaking in ships, offshore platforms, harbours and coastal areas. The computation of such highly nonlinear flows is challenging since free-surfaces commonly present merging, fragmentation and breaking parts, leading to the use of interface-capturing Eulerian approaches. In such methods the surface between two fluids is captured by the use of a marking function which is transported in a flow field. In this work we present a three-dimensional parallel edge-based incompressible SUPG/PSPG finite element method to cope with free-surface problems with volume-of-fluid (VOF) extensions to track the evolving free surface. The pure advection equation for the scalar marking function was solved by a fully implicit parallel edge-based SUPG finite element formulation. We studied variants of this formulation, considering the effects of discontinuity capturing and a particular tangent transformation designed to increase interface sharpness. Global mass conservation is enforced adding or removing mass proportionally to the absolute value of the normal velocity of the interface. We introduce a parallel dynamic deactivation algorithm to solve the marking function equation only in a small region around the interface. The implementation is targeted to distributed memory systems with cache-based processors. The performance and accuracy of the proposed solution method were tested with several validation problems.