REHEAT systems for turbo-jet engines employ variable area convergent nozzles, and modern developments have produced nozzles made up of a series of flaps or fingers, as shown in fig. 1. These flaps have to be supported against the internal gas load to maintain a given area. The turning moment on each flap is usually balanced by a single element through a mechanical linkage; the element may take the form of a rod in tension or a shaft in torsion. This note provides a theoretical study of the nature of this load. In addition, the concept of frictional forces is introduced and a method developed for calculating the forces prevailing in flight, provided that two constants are determined from sea level test results.


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    Titel :

    Pressure Forces on Variable Conical Nozzles


    Untertitel :

    A Theoretical Study of Pressure and Turning Moment Distribution on Turbojet Engine Reheat Systems


    Beteiligte:
    Woods, W.A. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.04.1961


    Format / Umfang :

    3 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Jet separation in conical nozzles

    Sunley, H.L.G. / Ferriman, V.N. | Engineering Index Backfile | 1964


    Shock predictions in conical nozzles

    KOSSEN, R. / MIGDAL, D. | AIAA | 1965


    SHOCK FORMATION IN CONICAL NOZZLES

    BADHAM, H. / DARWELL, H. M. | AIAA | 1963


    Optimization of conical thrust nozzles.

    Hoffman, J. D. / Scofield, M. P. | NTRS | 1967


    Optimization of conical thrust nozzles.

    HOFFMAN, J. D. | AIAA | 1967