http://www.cnr.it/ontology/cnr/individuo/prodotto/ID177998

Fast free-surface detection and level-set function definition in SPH solvers (Articolo in rivista)

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Label

Fast free-surface detection and level-set function definition in SPH solvers (Articolo in rivista) (literal)

Anno

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Alternative label

Marrone, S (Marrone, S.); Colagrossi, A (Colagrossi, A.); Le Touze, D (Le Touze, D.); Graziani, G (Graziani, G.) (2010)
Fast free-surface detection and level-set function definition in SPH solvers
in Journal of computational physics (Print)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Marrone, S (Marrone, S.); Colagrossi, A (Colagrossi, A.); Le Touze, D (Le Touze, D.); Graziani, G (Graziani, G.) (literal)

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Rivista

Note

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Le Touze, D (Le Touze, D.); CNRS, Ecole Cent Nantes, Fluid Mech Lab, Nantes, France Graziani, G (Graziani, G.); Univ Roma La Sapienza, Dept Mech & Aeronaut, Rome, Italy (literal)

Titolo

Fast free-surface detection and level-set function definition in SPH solvers (literal)

Abstract

The present paper proposes a novel algorithm to detect the free-surface in particle simulations, both in two and three dimensions. Since the proposed algorithms are based on SPH interpolations their implementation does not require complex geometrical procedures. Thus the free-surface detection can be easily embedded in SPH solvers, without a significant increase of the CPU time. Throughout this procedure accurate normal vectors to the free-surface are made available. Then it is possible to define a level-set function algo- rithm which is presented in detail. The latter allows in-depth analyses of three-dimensional free-surface simulations by using standard visualization tools, including internal features of the flow. The algorithms proposed for detecting free-surface particles and defining the level-set function are validated on simple and complex two- and three-dimensional flow simulations. The usefulness of the proposed procedures to post-process and analyze complex flows are illustrated on realistic examples. (literal)

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