Measurements were made in a combustion-heated supersonic axi-symmetric free jet from a nozzle with a diameter of 6.35 cm using dual-pump Coherent Anti-Stokes Raman Spectroscopy (CARS). The resulting mean and standard deviation temperature maps are presented. The temperature results show that the gas temperature on the centerline remains constant for approximately 5 nozzle diameters. As the heated gas mixes with the ambient air further downstream the mean temperature decreases. The standard deviation map shows evidence of the increase of turbulence in the shear layer as the jet proceeds downstream and mixes with the ambient air. The challenges of collecting data in a harsh environment are discussed along with influences to the data. The yield of the data collected is presented and possible improvements to the yield is presented are discussed.


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    Title :

    CARS Temperature Measurements in a Combustion-Heated Supersonic Jet


    Contributors:

    Conference:

    47th AIAA Aerospace Sciences Meeting and Exhibit Including The New Horizons Forum and Aerospace Exposition ; 2009 ; Orlando, FL, United States


    Publication date :

    2009-01-05


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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