Coherent anti-Stokes Raman spectroscopy (CARS) thermometry has been used to obtain static temperature cross sections in a three-dimensional supersonic combustor flowfield. Data were obtained in three spanwise planes downstream of a single normal fuel injector which was located downstream of a rearward-facing step. The freestream flow was nominally Mach 2 and was combustion heated to a total temperature of 1440 K (yielding a static temperature of about 800 K in the freestream) to simulate the inflow to a combustor operating at a flight Mach number of about 5.4. Since a broadband probe laser was used an instantaneous temperature sample was obtained with each laser shot at a repetition rate of 10 Hz. Thus root-mean-square (rms) temperatures and temperature probability density functions (pdf's) were obtained in addition to mean temperatures.


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    Titel :

    Coherent anti-Stokes Raman spectroscopy temperature measurements in a hydrogen-fueled supersonic combustor


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    1993-04-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch