A Holographic Particle-Image Velocimetry (HPIV) system is developed to investigate the in-cylinder flow in a motored four-valve engine operated at 1500 rpm. Image aberrations introduced by the optical liner of the engine are optically eliminated using complex-conjugate hologram reconstruction that allows measurements near the cylinder walls also. High-resolution velocity measurements in different axial planes of the in-cylinder flow are made at crank angles from 60° to 285° ATDC. Prospects and limitations to full three-dimensional extension of the HPIV system are discussed. The results show the development of the in-cylinder flow in two planes with emphasis on large and small-scale flow structures.


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    Title :

    Three Dimensional Flow Measurements Within the Cylinder of a Motored Four-Valve Engine Using Holographic Particle-Image Velocimetry


    Additional title:

    Sae Technical Papers


    Contributors:
    Konrath, R. (author) / Limberg, W. (author) / Schröder, W. (author)

    Conference:

    Spring Fuels & Lubricants Meeting & Exhibition ; 2002



    Publication date :

    2001-09-24




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English