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http://hdl.handle.net/10174/27493
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Title: | Un algorithme pour la simulation du transport convectif et de la propagation acoustique à tout nombre de Mach |
Authors: | Moguen, Yann Bruel, Pascal Correia, Paulo Dick, Erik |
Keywords: | All Mach schemes Momentum interpolation AUSM decomposition Co-located finite volumes Convectif transport Acoustic propagation |
Issue Date: | Aug-2019 |
Publisher: | HAL archives-ouvertes.fr |
Citation: | Moguen, Yann, Pascal Bruel, Paulo Correia, and Erik Dick. 2019. “Un Algorithme Pour La Simulation Du Transport Convectif et de La Propagation Acoustique à Tout Mombre de Mach.” In Actes 24ème Congrès Français de Mécanique. Brest: Association Française de Mécanique (AFM). |
Abstract: | A pressure-correction algorithm is presented for compressible fluid flow regimes. It is well-suited to si-
mulate flows at all levels of Mach number with smooth and discontinuous flow field changes, by providing
a precise representation of convective transport and acoustic propagation. The co-located finite volume
space discretization is used with the AUSM flux splitting. It is demonstrated that two ingredients are
essential for obtaining good quality solutions : the presence of an inertia term in the transporting velo-
city expression ; a velocity difference diffusive term in the face pressure expression, with a correct Mach
number scaling to recover the hydrodynamic and acoustic low Mach number limits. To meet these two
requirements, a new flux scheme, named MIAU, for Momentum Interpolation with Advection Upstream
splitting is proposed. |
URI: | https://biblio.ugent.be/publication/8627214 https://hal-univ-pau.archives-ouvertes.fr/hal-02361166/file/2019-CFM-MIAU.pdf http://hdl.handle.net/10174/27493 |
Type: | article |
Appears in Collections: | MAT - Artigos em Livros de Actas/Proceedings
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