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The purpose of this article is the analysis and the development of Eulerian multi-fluid models to describe the evolution of the mass density of evaporating liquid sprays. First, the classical multi-fluid model developed in [Laurent and Massot, Combust. Theor. Model. 5 (2001) 537-572] is analyzed in the framework of an unsteady configuration without dynamical nor heating effects, where the evaporation process is isolated, since it is a key issue. The classical multi-fluid method consists then in a discretization of the droplet size variable into cells called sections. This analysis provides a justification of the “right” choice for this discretization to obtain a first order accurate and monotone scheme, with no restrictive CFL condition. This result leads to the development of a class of methods of arbitrary high order accuracy through the use of moments on the droplet surface in each section and a Godunov type method. Moreover, an extension of the two moments method is proposed which preserves the positivity and limits the total variation. Numerical results of the multi-fluid methods are compared to examine their capability to accurately describe the mass density in the spray with a small number of variables. This is shown to be a key point for the use of such methods in realistic flow configurations.
@article{M2AN_2006__40_3_431_0,
author = {Laurent, Fr\'ed\'erique},
title = {Numerical analysis of eulerian multi-fluid models in the context of kinetic formulations for dilute evaporating sprays},
journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
pages = {431--468},
publisher = {EDP-Sciences},
volume = {40},
number = {3},
year = {2006},
doi = {10.1051/m2an:2006023},
mrnumber = {2245317},
zbl = {1160.76380},
language = {en},
url = {http://geodesic.mathdoc.fr/articles/10.1051/m2an:2006023/}
}
TY - JOUR AU - Laurent, Frédérique TI - Numerical analysis of eulerian multi-fluid models in the context of kinetic formulations for dilute evaporating sprays JO - ESAIM: Mathematical Modelling and Numerical Analysis PY - 2006 SP - 431 EP - 468 VL - 40 IS - 3 PB - EDP-Sciences UR - http://geodesic.mathdoc.fr/articles/10.1051/m2an:2006023/ DO - 10.1051/m2an:2006023 LA - en ID - M2AN_2006__40_3_431_0 ER -
%0 Journal Article %A Laurent, Frédérique %T Numerical analysis of eulerian multi-fluid models in the context of kinetic formulations for dilute evaporating sprays %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2006 %P 431-468 %V 40 %N 3 %I EDP-Sciences %U http://geodesic.mathdoc.fr/articles/10.1051/m2an:2006023/ %R 10.1051/m2an:2006023 %G en %F M2AN_2006__40_3_431_0
Laurent, Frédérique. Numerical analysis of eulerian multi-fluid models in the context of kinetic formulations for dilute evaporating sprays. ESAIM: Mathematical Modelling and Numerical Analysis , Tome 40 (2006) no. 3, pp. 431-468. doi: 10.1051/m2an:2006023
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