Mostrar el registro sencillo del ítem

Geometrical level set reinitialization using closest points method and kink detection for thin filaments, topology changes and two-phase flows

hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorHENRI, Félix
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorCOQUERELLE, Mathieu
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorLUBIN, Pierre
dc.date.accessioned2021-05-14T09:30:45Z
dc.date.available2021-05-14T09:30:45Z
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/75837
dc.description.abstractEnWe introduce a robust and high order strategy to perform the reinitialization in a level set framework. The reinitialization by closest-points (RCP) method is based on geometric considerations. It relies on a gradient descent to find the closest points at the interface in order to solve the eikonal equation and thus reinitializing the level set field. Furthermore, a new algorithm, also based on a similar geometric approach, is introduced to detect precisely all the ill-defined points of the level set. These points, also referred to as kinks, can mislead the gradient descent and more widely impact the accuracy of level set methods. This algorithm coupled with the precise computation of the closest points of the interface, permits the novel method to be robust and accurate even when performing the reinitialization every time step after solving the advection equation. Furthermore, they both require very few given parameters with the advantage of being based on a geometrical approach and independent of the application. The proposed method was tested on various benchmarks, and demonstrated equivalent or even better results compared to solving the Hamilton-Jacobi equation.
dc.language.isoen
dc.subject.engeometrical approach
dc.subject.enlevel set
dc.subject.enreinitialization
dc.subject.enclosest points
dc.subject.enkink detection
dc.subject.enmedial axis
dc.title.enGeometrical level set reinitialization using closest points method and kink detection for thin filaments, topology changes and two-phase flows
dc.typeDocument de travail - Pré-publication
dc.subject.halInformatique [cs]/Modélisation et simulation
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
hal.identifierhal-03159919
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03159919v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=HENRI,%20F%C3%A9lix&COQUERELLE,%20Mathieu&LUBIN,%20Pierre&rft.genre=preprint


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem