CARS spectroscopy of CH4 for implication of temperature measurements in supercritical LOX/CH4 combustion

F. Grisch (1) , E. Bertseva (1) , M. Habiballah (1) , Eric Jourdanneau (2) , Frédéric Chaussard (2) , R. Saint-Loup (2) , Tony Gabard (2) , H. Berger (2)

1 ONERA - The French Aerospace Lab [Palaiseau]
2 LPUB - Laboratoire de Physique de l'Université de Bourgogne

Experimental and theoretical investigations of coherent anti-Stokes Raman spectroscopy of CH4 have been carried out. Experimental spectra were measured in a heated high-pressure test cell and compared with numerical simulations. Good agreement was obtained for the temperature and the pressure dependence of CARS spectra in the ranges 300-1100 K and 0.1-5.0 MPa. The observed dependencies provide useful guidance for CARS thermometry, allowing quantitative measurements of temperature in high-pressure combustors. Application of multiplex CH4 CARS thermometry for single-shot measurements in a LOX/CH4 combustion at high pressure was demonstrated at supercritical conditions (5.6 MPa).

Mots clés: temperature; supercritical pressure; coherent anti-Stokes Raman scattering; CH4 spectroscopy; LOX/CH4 combustion

Domaines: Optique [physics.optics]

F. Grisch, E. Bertseva, M. Habiballah, Eric Jourdanneau, Frédéric Chaussard, et al.. CARS spectroscopy of CH4 for implication of temperature measurements in supercritical LOX/CH4 combustion. Aerospace Science and Technology, 2007, 11, pp.48--54. ⟨10.1016/j.ast.2006.07.005⟩. ⟨hal-00400381⟩