The present paper aims at proposing a fast algorithm permitting to detect the free-surface in particle simulations, and next to define a level-set function on a cartesian grid. The latter allows for analyzing in detail the free surface shape of three-dimensional simulations as well as internal features of the flow, by using standard visualization tools. The algorithms proposed for detecting the free-surface particles are described in both two and three dimensions, and are validated on simple and complex flow simulations. Then, the derivation of the level-set function is detailed and the usefulness of the proposed method to post-process and analyze complex flows are illustrated on realistic 2D and 3D examples.
A fast algorithm for free-surface particles detection in 2D and 3D SPH methods / S., Marrone; A., Colagrossi; D., Le Touz´e; Graziani, Giorgio. - ELETTRONICO. - (2009), pp. 61-68. (Intervento presentato al convegno 4th SPHERIC Workshop tenutosi a Nantes (Fr) nel May 27-29).
A fast algorithm for free-surface particles detection in 2D and 3D SPH methods
GRAZIANI, Giorgio
2009
Abstract
The present paper aims at proposing a fast algorithm permitting to detect the free-surface in particle simulations, and next to define a level-set function on a cartesian grid. The latter allows for analyzing in detail the free surface shape of three-dimensional simulations as well as internal features of the flow, by using standard visualization tools. The algorithms proposed for detecting the free-surface particles are described in both two and three dimensions, and are validated on simple and complex flow simulations. Then, the derivation of the level-set function is detailed and the usefulness of the proposed method to post-process and analyze complex flows are illustrated on realistic 2D and 3D examples.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
