title: Influence of nanosecond repetitively pulsed discharges on the stability of a swirled propane/air burner representative of an aeronautical combustor.
abstract: 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.
authors.affiliation: CNRS, UPR 288 Laboratoire EM2C, Grande Voie des Vignes, 92290 Chatenay-Malabry, France École Centrale Paris, Grande Voie des Vignes, 92290 Chatenay-Malabry, France severine.barbosa@univ-amu.fr.
authors.forename: S
authors.initials: S
authors.lastname: Barbosa
authors.affiliation: CNRS, UPR 288 Laboratoire EM2C, Grande Voie des Vignes, 92290 Chatenay-Malabry, France École Centrale Paris, Grande Voie des Vignes, 92290 Chatenay-Malabry, France.
authors.forename: G
authors.initials: G
authors.lastname: Pilla
authors.affiliation: CNRS, UPR 288 Laboratoire EM2C, Grande Voie des Vignes, 92290 Chatenay-Malabry, France École Centrale Paris, Grande Voie des Vignes, 92290 Chatenay-Malabry, France.
authors.forename: D A
authors.initials: DA
authors.lastname: Lacoste
authors.affiliation: CNRS, UPR 288 Laboratoire EM2C, Grande Voie des Vignes, 92290 Chatenay-Malabry, France École Centrale Paris, Grande Voie des Vignes, 92290 Chatenay-Malabry, France.
authors.forename: P
authors.initials: P
authors.lastname: Scouflaire
authors.affiliation: CNRS, UPR 288 Laboratoire EM2C, Grande Voie des Vignes, 92290 Chatenay-Malabry, France École Centrale Paris, Grande Voie des Vignes, 92290 Chatenay-Malabry, France.
authors.forename: S
authors.initials: S
authors.lastname: Ducruix
authors.affiliation: CNRS, UPR 288 Laboratoire EM2C, Grande Voie des Vignes, 92290 Chatenay-Malabry, France École Centrale Paris, Grande Voie des Vignes, 92290 Chatenay-Malabry, France.
authors.forename: C O
authors.initials: CO
authors.lastname: Laux
authors.affiliation: CNRS, UPR 288 Laboratoire EM2C, Grande Voie des Vignes, 92290 Chatenay-Malabry, France École Centrale Paris, Grande Voie des Vignes, 92290 Chatenay-Malabry, France.
authors.forename: D
authors.initials: D
authors.lastname: Veynante
keywords: flame stabilization; lean premixed combustion; nanosecond repetitively pulsed discharges; optical diagnostics; plasma-assisted combustion