Modeling and Simulation of Nucleate Boiling - Archive ouverte HAL Access content directly
Conference Papers Year : 2012

Modeling and Simulation of Nucleate Boiling

(1) , (2) , (3)
1
2
3

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.
Fichier principal
Vignette du fichier
Faccanoni_resume.pdf (112.08 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-00977843 , version 1 (16-04-2014)

Identifiers

  • HAL Id : hal-00977843 , version 1

Cite

Gloria Faccanoni, Samuel Kokh, Grégoire Allaire. Modeling and Simulation of Nucleate Boiling. EDP-Normandie, 2010, Caen, France. pp.49-53. ⟨hal-00977843⟩
323 View
169 Download

Share

Gmail Facebook Twitter LinkedIn More