Modeling and Simulation of Nucleate Boiling

Abstract : This work investigates the modelization and simulation of liquid-vapor phase change in compressible flows. Each phase is modeled as a compressible fluid equipped with its own Equation of State (EOS). We suppose that inter-phase equilibrium processes in the medium operate at a short timescale compared to the other physical phenomena such as convection or thermal diffusion. This assumption provides an implicit definition of an equilibrium EOS for the two-phase medium. Within this framework, mass transfer is the result of local and instantaneous equilibria between both phases. The overall model is strictly hyperbolic. We examine properties of the equilibrium EOS and we propose a discretization strategy based on a Finite-Volume relaxation method. This method allows to cope with the implicit definition of the equilibrium EOS, even when the model involves complex EOSs for the pure phases, including tabulated ones. We present two-dimensional numerical simulations that shows that the model is able to reproduce mechanism such as nucleation.
Type de document :
Communication dans un congrès
EDP-Normandie, 2010, Caen, France. pp.49-53, 2012
Liste complète des métadonnées

Littérature citée [10 références]  Voir  Masquer  Télécharger

https://hal-univ-tln.archives-ouvertes.fr/hal-00977843
Contributeur : Gloria Faccanoni <>
Soumis le : mercredi 16 avril 2014 - 12:56:24
Dernière modification le : lundi 2 juillet 2018 - 10:02:02
Document(s) archivé(s) le : lundi 10 avril 2017 - 12:06:17

Fichier

Faccanoni_resume.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-00977843, version 1

Collections

Citation

Gloria Faccanoni, Samuel Kokh, Grégoire Allaire. Modeling and Simulation of Nucleate Boiling. EDP-Normandie, 2010, Caen, France. pp.49-53, 2012. 〈hal-00977843〉

Partager

Métriques

Consultations de la notice

592

Téléchargements de fichiers

208