A new optical method using the deflection of laser beams caused by density gradients in the flow is used to study coherent structures in the first six diameters of five axisymmetric jets of different velocities and densities. Quantitative information about the development of coherent structures with axial distance has been deduced and presented in terms of the average interval between successive events and the convection velocity and chances of survival of individual events. The results are found to be consistent with previous published work in this field. The main advantage of this technique is that it can be used to study high-temperature and high-speed flows in which it is impossible to use conventional techniques like hot-wire anemometry. (DePo)


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Study of coherent structures in axisymmetric jets using an optical technique


    Weitere Titelangaben:

    Studie der kohaerenten Strukturen axialsymmetrischer Strahlstroemungen mit einem optischen Messverfahren


    Beteiligte:

    Erschienen in:

    AIAA Journal ; 18 , 3 ; 225-226


    Erscheinungsdatum :

    1980


    Format / Umfang :

    2 Seiten, 4 Bilder, 1 Tabelle, 3 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch






    Axisymmetric coaxial synthetic jets

    Bangash, Z. / Ahmed, A. | AIAA | 2002


    Coherent Structures in Subsonic Elliptical Jets

    Amaral, Filipe R. / Jordan, Peter / Avanci, Mateus et al. | AIAA | 2024


    Enhancement of Large Scale Structures in Supersonic Axisymmetric Jets Using Laser Excitation

    Elliott, G. S. / Crawford, J. / Mosedale, A. et al. | British Library Conference Proceedings | 1998