Direct computation of the Lagrangian autocorrelation is not feasible since generally one cannot measure the turbulent velocity of each fluid particle. A model whereby the Lagrangian autocorrelation is determined in terms of a domain integral of a set regular Eulerian autocorrelations is advanced. The Eulerian autocorrelations are to be aquired concurrently at all positions in the flow field. Three novel averaging procedures are utilized for obtaining the relationship between the Lagrangian and Eulerian autocorrelations. This relationship is not constrained to either homogeneous or isotropic turbulence. (DePo)


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    Title :

    A relation between the Lagrangian and Eulerian turbulent velocity autocorrelation


    Additional title:

    Relation zwischen der Lagrange Funktion und der Euler Gleichung fuer Autokorrelationen turbulenter Geschwindigkeiten


    Contributors:
    Koper, C.A. (author) / Sadeh, W.Z. (author) / Turner, R.E. (author)

    Published in:

    Publication date :

    1978


    Size :

    8 Seiten, 3 Bilder, 17 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English