Spatially localized radiating diffusion flames

David Lo Jacono (1) , Alain Bergeon (1) , Edgar Knobloch (2)

1 IMFT - Institut de mécanique des fluides de Toulouse
2 LBNL - Lawrence Berkeley National Laboratory [Berkeley]

A simple model of radiating diffusion flames considered by Kavousanakis et al. (2013) [1] is extended to two spatial dimensions. A large variety of stationary spatially localized states representing the breakup of the flame front near extinction is computed using numerical continuation. These states are organized by a global bifurcation in space that takes place at a particular value of the Damköhler number and their existence is consistent with current understanding of spatial localization in driven dissipative systems.

Mots clés: Diffusion flames; Localized states; Instabilities

Domaines: Mécanique des fluides [physics.class-ph]

David Lo Jacono, Alain Bergeon, Edgar Knobloch. Spatially localized radiating diffusion flames. Combustion and Flame, 2017, vol. 176, pp. 117-124. ⟨10.1016/j.combustflame.2016.10.002⟩. ⟨hal-01613931⟩