A second-order multi-fluid model for evaporating sprays

Guillaume Dufour; Philippe Villedieu

ESAIM: Mathematical Modelling and Numerical Analysis (2010)

  • Volume: 39, Issue: 5, page 931-963
  • ISSN: 0764-583X

Abstract

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The aim of this paper is to present a method using both the ideas of sectional approach and moment methods in order to accurately simulate evaporation phenomena in gas-droplets flows. Using the underlying kinetic interpretation of the sectional method [Y. Tambour, Combust. Flame60 (1985) 15–28] exposed in [F. Laurent and M. Massot, Combust. Theory Model.5 (2001) 537–572], we propose an extension of this approach based on a more accurate representation of the droplet size number density in each section ensuring the exact conservation of two moments (as opposed to only one moment used in the classical approach). A corresponding second-order numerical scheme, with respect to space and droplet size variables, is also introduced and can be proved to be positive and to satisfy a maximum principle on the velocity and the mean droplet mass under a suitable CFL-like condition. Numerical simulations have been performed and the results confirm the accuracy of this new method even when a very coarse mesh for the droplet size variable (i.e.: a low number of sections) is used.

How to cite

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Dufour, Guillaume, and Villedieu, Philippe. "A second-order multi-fluid model for evaporating sprays." ESAIM: Mathematical Modelling and Numerical Analysis 39.5 (2010): 931-963. <http://eudml.org/doc/194294>.

@article{Dufour2010,
abstract = { The aim of this paper is to present a method using both the ideas of sectional approach and moment methods in order to accurately simulate evaporation phenomena in gas-droplets flows. Using the underlying kinetic interpretation of the sectional method [Y. Tambour, Combust. Flame60 (1985) 15–28] exposed in [F. Laurent and M. Massot, Combust. Theory Model.5 (2001) 537–572], we propose an extension of this approach based on a more accurate representation of the droplet size number density in each section ensuring the exact conservation of two moments (as opposed to only one moment used in the classical approach). A corresponding second-order numerical scheme, with respect to space and droplet size variables, is also introduced and can be proved to be positive and to satisfy a maximum principle on the velocity and the mean droplet mass under a suitable CFL-like condition. Numerical simulations have been performed and the results confirm the accuracy of this new method even when a very coarse mesh for the droplet size variable (i.e.: a low number of sections) is used. },
author = {Dufour, Guillaume, Villedieu, Philippe},
journal = {ESAIM: Mathematical Modelling and Numerical Analysis},
keywords = {Moment method; sectional method; sprays; evaporation; multi-fluid.; moment method; multi-fluid model; transport scheme; evaporation scheme},
language = {eng},
month = {3},
number = {5},
pages = {931-963},
publisher = {EDP Sciences},
title = {A second-order multi-fluid model for evaporating sprays},
url = {http://eudml.org/doc/194294},
volume = {39},
year = {2010},
}

TY - JOUR
AU - Dufour, Guillaume
AU - Villedieu, Philippe
TI - A second-order multi-fluid model for evaporating sprays
JO - ESAIM: Mathematical Modelling and Numerical Analysis
DA - 2010/3//
PB - EDP Sciences
VL - 39
IS - 5
SP - 931
EP - 963
AB - The aim of this paper is to present a method using both the ideas of sectional approach and moment methods in order to accurately simulate evaporation phenomena in gas-droplets flows. Using the underlying kinetic interpretation of the sectional method [Y. Tambour, Combust. Flame60 (1985) 15–28] exposed in [F. Laurent and M. Massot, Combust. Theory Model.5 (2001) 537–572], we propose an extension of this approach based on a more accurate representation of the droplet size number density in each section ensuring the exact conservation of two moments (as opposed to only one moment used in the classical approach). A corresponding second-order numerical scheme, with respect to space and droplet size variables, is also introduced and can be proved to be positive and to satisfy a maximum principle on the velocity and the mean droplet mass under a suitable CFL-like condition. Numerical simulations have been performed and the results confirm the accuracy of this new method even when a very coarse mesh for the droplet size variable (i.e.: a low number of sections) is used.
LA - eng
KW - Moment method; sectional method; sprays; evaporation; multi-fluid.; moment method; multi-fluid model; transport scheme; evaporation scheme
UR - http://eudml.org/doc/194294
ER -

References

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