Multi-scale Godunov-type method for cell-centered discrete Lagrangian hydrodynamics.
| hal.structure.identifier | Centre d'Etudes Lasers Intenses et Applications [CELIA] | |
| dc.contributor.author | MAIRE, P.H. | |
| hal.structure.identifier | Institut de Mathématiques de Bordeaux [IMB] | |
| dc.contributor.author | NKONGA, Boniface | |
| dc.date.issued | 2009 | |
| dc.identifier.issn | 0021-9991 | |
| dc.description.abstractEn | This work presents a multidimensional cell-centered unstructured finite volume scheme for the solution of multimaterial compressible fluid flows written in the Lagrangian formalism. This formulation is considered in the Arbitrary-Lagrangian-Eulerian (ALE) framework with the constraint that the mesh and the fluid velocity coincide. The link between the vertex velocity and the fluid motion is obtained by a formulation of the momentum conservation on a class of multi-scale encased volumes around mesh vertices. The vertex velocity is derived with a nodal Riemann solver constructed in such a way that the mesh motion and the face fluxes are compatible. Finally, the resulting scheme conserves both momentum and total energy and, it satisfies a semi-discrete entropy inequality. The numerical results obtained for some classical 2D and 3D hydrodynamic test cases show the robustness and the accuracy of the proposed algorithm. | |
| dc.description.sponsorship | Simulation Numérique pour la Recherche en Rayonnement, Gravitation et Hydrodynamique . - ANR-06-CIS6-0009 | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Lagrangian hydrodynamics | |
| dc.subject.en | finite volume method | |
| dc.subject.en | unstructured | |
| dc.subject.en | multidimensional | |
| dc.title.en | Multi-scale Godunov-type method for cell-centered discrete Lagrangian hydrodynamics. | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.jcp.2008.10.012 | |
| dc.subject.hal | Physique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph] | |
| dc.subject.hal | Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des fluides [physics.class-ph] | |
| bordeaux.journal | Journal of Computational Physics | |
| bordeaux.page | Pages 799-821 | |
| bordeaux.volume | Volume 228 | |
| bordeaux.issue | Issue 3, 20 February 2009 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | inria-00290717 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//inria-00290717v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Computational%20Physics&rft.date=2009&rft.volume=Volume%20228&rft.issue=Issue%203,%2020%20February%202009&rft.spage=Pages%20799-821&rft.epage=Pages%20799-821&rft.eissn=0021-9991&rft.issn=0021-9991&rft.au=MAIRE,%20P.H.&NKONGA,%20Boniface&rft.genre=article |
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