Theoretical and Experimental Determinations of the Transfer Function of a Laminar Premixed Flame

Sébastien Ducruix (1) , Daniel Durox (1) , Sébastien M. Candel (1)

1 EM2C - Laboratoire d'Énergétique Moléculaire et Macroscopique, Combustion

The dynamical behavior of laminar premixed flames is investigated in this article. The flame response to incident perturbations is characterized with a transfer function relating the flow velocity modulations and the heat release fluctuations. This function is obtained using the assumptions introduced in previous studies by Fleifil et al., but the model is extended to account for any flame angle (i.e., any operating condition). The modeling shows that phenomena can be described using a single control parameter taking the form of a reduced frequency w*.

Mots clés: Acoustic Flame Interactions; Pagoda Flame; Transfer Function

Domaines: Milieux fluides et réactifs

Sébastien Ducruix, Daniel Durox, Sébastien M. Candel. Theoretical and Experimental Determinations of the Transfer Function of a Laminar Premixed Flame. Proceedings of the Combustion Institute, 2000, 28, pp.765-773. ⟨10.1016/s0082-0784(00)80279-9⟩. ⟨hal-00182868⟩