Experimental visualization of aluminum ignition and burning close to a solid propellant burning surface

Thomas Geoffrey Decker (1) , Robin William Devillers (1) , Stany Gallier (2)

1 DMPE, ONERA, Université Paris Saclay [Châtillon]
2 ArianeGroup

Visible images of burning solid propellants loaded with aluminum particles are presented. The images are recorded at high acquisition frame rate (up to 33kHz) with excellent sharpness, enabling the study of aluminum ignition and combustion close to the propellant burning surface. The article focuses on two aspects: the aluminum aggregate ignition and the alumina breaking and migration on the aggregate surface. The article presents new ways of studying aluminum agglomeration and combustion by applying image processing algorithms on state-of-the-art image series.

Mots clés: Solid Propellants; Aluminium; Shadowgraphy

Mots clés: Propergol Solid; Aluminium; Ombroscopie

Domaines: Sciences de l'ingénieur [physics]; Physique [physics]

Thomas Geoffrey Decker, Robin William Devillers, Stany Gallier. Experimental visualization of aluminum ignition and burning close to a solid propellant burning surface. ECM 2023, Coria UMR 6614, French Combustion Institute, Apr 2023, Rouen, France. ⟨hal-04120551⟩