Locally refined discrete velocity grids for stationary rarefied flow simulations
| hal.structure.identifier | Centre d'études scientifiques et techniques d'Aquitaine (CESTA-CEA) [CESTA] | |
| dc.contributor.author | BARANGER, Céline | |
| hal.structure.identifier | Centre d'études scientifiques et techniques d'Aquitaine (CESTA-CEA) [CESTA] | |
| dc.contributor.author | CLAUDEL, Jean | |
| hal.structure.identifier | Institut de Mathématiques de Bordeaux [IMB] | |
| dc.contributor.author | HÉROUARD, Nicolas | |
| hal.structure.identifier | Institut de Mathématiques de Bordeaux [IMB] | |
| dc.contributor.author | MIEUSSENS, Luc | |
| dc.date.created | 2013-04-19 | |
| dc.date.issued | 2014 | |
| dc.identifier.issn | 0021-9991 | |
| dc.description.abstractEn | Most of deterministic solvers for rarefied gas dynamics use discrete velocity (or discrete ordinate) approximations of the distribution function on a Cartesian grid. This grid must be sufficiently large and fine to describe the distribution functions at every space position in the computational domain. For 3-dimensional hypersonic flows, like in re-entry problems, this induces much too dense velocity grids that cannot be practically used, for memory storage requirements. In this article, we present an approach to generate automatically a locally refined velocity grid adapted to a given simulation. This grid contains much less points than a standard Cartesian grid and allows us to make realistic 3-dimensional simulations at a reduced cost, with a comparable accuracy. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | rarefied flow simulation | |
| dc.subject.en | hypersonic flows | |
| dc.subject.en | re-entry problem | |
| dc.subject.en | transition regime | |
| dc.subject.en | BGK model | |
| dc.subject.en | discrete velocity model | |
| dc.title.en | Locally refined discrete velocity grids for stationary rarefied flow simulations | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.jcp.2013.10.014 | |
| dc.subject.hal | Mathématiques [math]/Analyse numérique [math.NA] | |
| dc.identifier.arxiv | 1304.5611 | |
| bordeaux.journal | Journal of Computational Physics | |
| bordeaux.page | 572-593 | |
| bordeaux.volume | 257 | |
| bordeaux.issue | 15 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00815967 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00815967v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Computational%20Physics&rft.date=2014&rft.volume=257&rft.issue=15&rft.spage=572-593&rft.epage=572-593&rft.eissn=0021-9991&rft.issn=0021-9991&rft.au=BARANGER,%20C%C3%A9line&CLAUDEL,%20Jean&H%C3%89ROUARD,%20Nicolas&MIEUSSENS,%20Luc&rft.genre=article |
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