An automated technique for measuring particle diameters and their spatial coordinates from holographic reconstructions is being developed. Preliminary tests on actual cold-flow holograms of impinging jets indicate that a suitable discriminant algorithm consists of a Fourier-Gaussian noise filter and a contour thresholding technique. This process identifies circular as well as noncircular objects. The desired objects (in this case, circular or possibly ellipsoidal) are then selected automatically from the above set and stored with their parametric representations. From this data, dropsize distributions as a function of spatial coordinates can be generated and combustion effects due to hardware and/or physical variables studied.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Feasibility of automated dropsize distributions from holographic data using digital image processing techniques


    Contributors:

    Conference:

    American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting ; 1979 ; New Orleans, LA


    Publication date :

    1979-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English






    Flow and Dropsize Measurements in Glycerol Spray Flames

    Simmons, Benjamin / Agrawal, Ajay | AIAA | 2012



    Flow and Dropsize Measurements in Glycerol Spray Flames

    Simmons, B. / Agrawal, A. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2012