Influence of nanosecond repetitively pulsed discharges on the stability of a swirled propane/air burner representative of an aeronautical combustor

Séverine Barbosa (1) , Guillaume Pilla (1) , Deanna Lacoste (1) , Philippe Scouflaire (1) , Sebastien Ducruix (1) , Christophe O. Laux (1) , Denis Veynante (1)

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

This paper reports on an experimental study of the influence of a nanosecond repetitively pulsed spark discharge on the stability domain of a propane/air flame. This flame is produced in a lean premixed swirled combustor representative of an aeronautical combustion chamber. The lean extinction limits of the flame produced without and with plasma are determined and compared. It appears that only a low mean discharge power is necessary to increase the flame stability domain. Lastly, the effects of several parameters (pulse repetition frequency, global flowrate, electrode location) are studied.

Domaines: Sciences de l'ingénieur [physics]; Milieux fluides et réactifs

Séverine Barbosa, Guillaume Pilla, Deanna Lacoste, Philippe Scouflaire, Sebastien Ducruix, et al.. Influence of nanosecond repetitively pulsed discharges on the stability of a swirled propane/air burner representative of an aeronautical combustor. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015, 373 (2048), pp.20140335. ⟨10.1098/rsta.2014.0335⟩. ⟨hal-01219310⟩