 |
Free and accessible knowledge |
Journal articles
A NONISOTHERMAL THERMODYNAMICAL MODEL OF LIQUID-VAPOR INTERACTION WITH METASTABILITY
Abstract : The paper concerns the construction of a compressible liquid-vapor relaxation model which is able to capture the metastable states of the non isothermal van der Waals model as well as saturation states. Starting from the Gibbs formalism, we propose a dynamical system which complies with the second law of thermodynamics. Numerical simulations illustrate the expected behaviour of metastable states: an initial metastable condition submitted to a certain perturbation may stay in the metastable state or reaches a saturation state. The dynamical system is then coupled to the dynamics of the compressible fluid using an Euler set of equations supplemented by convection equations on the fractions of volume, mass and energy of one of the phases.
https://hal.archives-ouvertes.fr/hal-02336478
Contributor : Hala Ghazi Connect in order to contact the contributor
Submitted on : Wednesday, June 2, 2021 - 5:51:10 PM
Last modification on : Wednesday, April 27, 2022 - 3:57:03 AM
Contributor : Hala Ghazi Connect in order to contact the contributor
Submitted on : Wednesday, June 2, 2021 - 5:51:10 PM
Last modification on : Wednesday, April 27, 2022 - 3:57:03 AM
File
Template_1.pdf
Files produced by the author(s)