Soot modeling in turbulent diffusion flames: review and prospects

Sebastian Valencia (1) , Sebastián Ruiz (1) , Javier Manrique (1) , Cesar Celis (1) , Luís Fernando Figueira da Silva (2, 3)

1 PUCP - Pontificia Universidad Católica del Perú = Pontifical Catholic University of Peru
2 PUC-Rio - Pontifícia Universidade Católica do Rio de Janeiro [Brasil] = Pontifical Catholic University of Rio de Janeiro [Brazil] = Université catholique pontificale de Rio de Janeiro [Brésil]
3 PPrime [Poitiers] - Institut Pprime [UPR 3346]

This work reviews the state-of-the-art of the main soot modeling approaches used in turbulent diffusion flames. Accordingly, after a short introduction about the subject addressed here, the main soot formation mechanisms are described next. This description provides the basis for the discussions about the different soot modeling techniques employed nowadays for soot predictions. Since combustion and radiation models have a significant impact on soot predictions, as a consequence of the strong coupling between chemistry, turbulence and soot formation, a general overview about these models is also provided. For the sake of clarity, the main soot formation models reviewed in this work are classified as semi-empirical soot precursor models and detailed ones. Both advantages and disadvantages of the referred soot modeling approaches are properly discussed. In the last part of this review, comparative results obtained using some of the main soot models currently available are presented along with a discussion about the prospects for soot modeling in turbulent flames. Finally, some conclusions and references are provided. Overall, based on the literature reviewed, it is concluded that there is yet a long path to be followed before understanding first and having then a soot model able to properly describe the formation of this critical pollutant for a variety of situations of industrial interest.

Domaines: Milieux fluides et réactifs

Sebastian Valencia, Sebastián Ruiz, Javier Manrique, Cesar Celis, Luís Fernando Figueira da Silva. Soot modeling in turbulent diffusion flames: review and prospects. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2021, 43 (4), ⟨10.1007/s40430-021-02876-y⟩. ⟨hal-03313675⟩