An analytical study has been made of the effects of viscous/inviscid interactions on the transonic flow over boattail nozzles. The theoretical method couples a relaxation solution of the full potential transonic flow equations with a conventional boundary-layer solution to account for displacement-thickness effects. Surface pressures calculated on circular-arc boattails with solid jet-plume simulators show good agreement with experiment for free-stream Mach numbers less than 0.90. For separated flows, an empirical discriminating streamline model of the separation bubble gives good results until the onset of shock-induced separation, which occurs typically at a Mach number of about 0.90.


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    Titel :

    Analytical study of viscous effects on transonic flow over boattail nozzles


    Beteiligte:
    Wilmoth, R. G. (Autor:in)

    Kongress:

    Aerospace Sciences Meeting ; 1977 ; Los Angeles, CA


    Erscheinungsdatum :

    01.01.1977


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



    Numerical calculation of transonic boattail flow

    Chow, Wen L. / Bober, Lawrence J. / Anderson, Bernhard H. | TIBKAT | 1975


    Separation region on boattail nozzles

    Buteau, J. D. / King, R. W. / Presz, W. M., Jr. | NTRS | 1980



    Boundary-layer separation on isolated boattail nozzles

    Abeyounis, William Kelly | TIBKAT | 1978