The local velocity characteristics of separating boundary-layer flows and the resulting downstream regions of recirculation are obtained by solving, with finite- difference methods, parabolic and elliptic equations that represent conservation of mass and momentum. Both methods are shown to represent, in general terms, the measurements of Simpson et al. obtained in a separating boundary layer. Quantitative discrepancies exist and may be attributed partly to the turbulence models and wall functions. In addition, the boundary-layer assumptions of the parabolic equations may contribute to the discrepancies, and the comparatively small number of nodes abailable for the solution of the elliptic equations undoubtedly contribute. The elliptic procedure has been used to calculate the separated flow in wide-angle diffusers and on wedges, again with flow separation, intended to simulate the trailing edge of airfoils at angle of attack. (Jensen)


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    Title :

    Calculation of separated boundary-layer flows


    Additional title:

    Berechnung der Grenzschichtabloesung bei Grenzschichtstroemungen


    Contributors:
    Cebeci, T. (author) / Khalil, E.E. (author) / Whitelaw, Y.H. (author)

    Published in:

    AIAA Journal ; 17 , 12 ; 1291-1292


    Publication date :

    1979


    Size :

    2 Seiten, 2 Bilder, 3 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Calculation of Separated Boundary-Layer Flows

    Tuncer Cebeci / E.E. Khalil / J. H. Whitelaw | AIAA | 1979




    Turbulence modeling of shock separated boundary-layer flows

    Coakley, T.J. / Viegas, J.R. | Tema Archive | 1977