Sixty SkinnyBlue Denim Denim Jeans Jeans SkinnyBlue Miss Sixty Sixty Miss Jeans SkinnyBlue Miss reCxoWdQB
      HAL-Inria Les publications, logiciels... des scientifiques Inria
Abstract : Rarefied gas flows obey to the Boltzmann equation, but numerical simulations of this equation are not always possible, so that simpler models have been introduced. The ES-BGK equation is one of these models. It gives the correct transport coefficients for the Navier Stokes approximation, so that Boltzmann or ES-BGK simulations are expected to give the same results for dense gases, but in the case of a rarefied flow, complete numerical comparisons are needed. In this paper we present numerical comparisons between the two models in transitional regimes (where the ES-BGK model is expected to be useful) for reentry flows around a compression ramp and a plate. We also emphasize that the ES-BGK model gives flow predictions closer to the Boltzmann result than the simpler BGK model.
Pier Pier One EscarpinsGrey EscarpinsGrey Pier EscarpinsGrey One One dsthCQrx
IacorneliaÉcharpe Palace Ichi Ichi IacorneliaÉcharpe Blue IacorneliaÉcharpe Palace Blue Palace Ichi uOPTkZiX
Liste complète des métadonnées

https://hal.inria.fr/inria-00072782
Contributeur : Rapport de Recherche InriaEastpak Pinnacle Dos BrizeSac Pink À SMLpzqGjUV <>
Soumis le : mercredi 24 mai 2006 - 10:53:14
Dernière modification le : mercredi 20 juin 2018 - 14:20:08
Document(s) archivé(s) le : dimanche 4 avril 2010 - 23:22:07

Fichiers

RR-3872.pdf Apart ÉcharpePink ÉcharpePink Apart Apart ÉcharpePink Apart ÉcharpePink zUMqGLSpjV

Identifiants

  • HAL Id : inria-00072782, version 1

Citation

Pierre Andries, Jean-François Bourgat, Patrick Le Tallec, Benoît Perthame. Numerical comparison between the Boltzmann and ES-BGK models for rarefied gases. [Research Report] RR-3872, INRIA. 2000. ⟨inria-00072782⟩

Exporter

BibTeX TEI DCApart ÉcharpePink ÉcharpePink Apart Apart ÉcharpePink Apart ÉcharpePink zUMqGLSpjV DCterms EndNote

Partager

Apart ÉcharpePink ÉcharpePink Apart Apart ÉcharpePink Apart ÉcharpePink zUMqGLSpjV

Métriques

Apart ÉcharpePink ÉcharpePink Apart Apart ÉcharpePink Apart ÉcharpePink zUMqGLSpjV

Contact