[Calcul de la formation des suies sur des flammes de diffusion à contre-courant de éthylène/air]
Une méthodologie est proposée pour le calcul des niveaux de suies produits dans des flammes laminaires monodimensionnelles. Cette méthode est appliquée à une série de flammes de diffusion à contre-courant éthylène/air, largement référencées et documentées dans la littérature, et calculées avec un mécanisme chimique détaillé (Davis et al., 1999 [1]) et le modèle semi-empirique à deux équations de Leung et Lindstedt (1991) [2]. Le modèle de suie a été corrigé afin dʼobtenir un meilleur accord avec les mesures expérimentales de Hwang et Chung (2001) [3]. Afin de prendre en compte les pertes thermiques radiatives, une deuxième série de simulations couplées gaz/suies/rayonnement de ces flammes à contre-courant a été réalisée. Cette démarche permet dʼévaluer lʼeffet du rayonnement des suies et de la phase gazeuse sur la formation des suies et sur la structure de flamme.
A methodology is presented which allows to predict soot levels produced in simple, one-dimensional laminar flames. The method is applied to the calculation of a set of well documented ethylene/air counterflow diffusion flames, using a detailed chemical mechanism (Davis et al., 1999 [1]) and a semi-empirical, two-equation soot model from Leung and Lindstedt (1991) [2]. Modifications of the original soot model are made in order to retrieve the experimental measurements of Hwang and Chung (2001) [3]. To account for radiative heat losses, a second series of fully coupled gas/soot/radiation simulations of the counterflow flames is performed. This allows to assess the effect of soot and gas radiation on soot formation and on the flame structure.
Mot clés : Suies, Rayonnement, Flammes de diffusion à contre-courant
Ignacio Hernández 1 ; Guillaume Lecocq 1 ; Damien Poitou 1 ; Eléonore Riber 1 ; Bénédicte Cuenot 1
@article{CRMECA_2013__341_1-2_238_0, author = {Ignacio Hern\'andez and Guillaume Lecocq and Damien Poitou and El\'eonore Riber and B\'en\'edicte Cuenot}, title = {Computations of soot formation in ethylene/air counterflow diffusion flames and its interaction with radiation}, journal = {Comptes Rendus. M\'ecanique}, pages = {238--246}, publisher = {Elsevier}, volume = {341}, number = {1-2}, year = {2013}, doi = {10.1016/j.crme.2012.11.005}, language = {en}, }
TY - JOUR AU - Ignacio Hernández AU - Guillaume Lecocq AU - Damien Poitou AU - Eléonore Riber AU - Bénédicte Cuenot TI - Computations of soot formation in ethylene/air counterflow diffusion flames and its interaction with radiation JO - Comptes Rendus. Mécanique PY - 2013 SP - 238 EP - 246 VL - 341 IS - 1-2 PB - Elsevier DO - 10.1016/j.crme.2012.11.005 LA - en ID - CRMECA_2013__341_1-2_238_0 ER -
%0 Journal Article %A Ignacio Hernández %A Guillaume Lecocq %A Damien Poitou %A Eléonore Riber %A Bénédicte Cuenot %T Computations of soot formation in ethylene/air counterflow diffusion flames and its interaction with radiation %J Comptes Rendus. Mécanique %D 2013 %P 238-246 %V 341 %N 1-2 %I Elsevier %R 10.1016/j.crme.2012.11.005 %G en %F CRMECA_2013__341_1-2_238_0
Ignacio Hernández; Guillaume Lecocq; Damien Poitou; Eléonore Riber; Bénédicte Cuenot. Computations of soot formation in ethylene/air counterflow diffusion flames and its interaction with radiation. Comptes Rendus. Mécanique, Volume 341 (2013) no. 1-2, pp. 238-246. doi : 10.1016/j.crme.2012.11.005. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2012.11.005/
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