Phenomenology of a two-phase laminar flame interacting with a heated cylinder

被引：1
|
作者：
Thomine, Olivier [3 ]
Gai, Guodong [1 ,2 ]
Hadjadj, Abdellah [2 ]
Kudriakov, Sergey [1 ]
机构：
[1] Univ Paris Saclay, Commissariat Energie Atom & Energies Alternat, DEN DM2S STMF, F-91191 Gif Sur Yvette, France
[2] Univ Normandy, INSA, CORIA UMR 6614 CNRS, F-76000 Rouen, France
[3] Univ Toulon & Var, Aix Marseille Univ, CNRS, LIS UMR 7020, Ave Escadrille Normandie Niemen, F-7020 Marseille 20, France
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2021年 / 168卷
关键词：
Spray droplets; Laminar flame; Stokes number; Submerged cylinder;
D O I：
10.1016/j.ijheatmasstransfer.2020.120867
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this work, the interaction between a two-phase laminar flame and a heated cylinder is investigated numerically. Different physical phenomena are considered, such as droplets/cylinder collision, droplets evaporation, flame ignition and stabilization. Several important parameters appearing in the interaction are discussed. The Stokes number is proved to be of significant importance on the droplet segregation. The region of highest density of liquid fuel in the vicinity of the cylinder is analyzed as to study the droplet segregation in the two-phase flow. As a result of evaporation, the droplet segregation can effectively change the gas mixtures near the cylinder. The spray droplets with small Stokes numbers show weak evaporation capacity on the cylinder surface. It is found that the fuel gas density increases with higher Stokes number and a flame detachment is noticed. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：10
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