The core objective of this study is to present the details of the experimental procedure and measurements made in an axisymmetric swirler model. The flow through 8 blade 30 degree vane swirler is studied experimentally. An overlap angle of 30 degree is provided between the vanes for the proper guidance of the flow through swirler. A hemi spherical bluff body is attached to the hub in order to overcome the inlet flow field distortion. A 5 mm diameter five-hole pitot sphere of cobra type has been used along with electronic digital manometers for the measurements. A computer aided traversing mechanism supported with Streamware software automatically controls the traversing of the probe. The recirculation velocities at the center core and corner regions are well captured with the five-hole probe. Five-hole pitot probe measurements along the entire length of the model at different stations, allow the determination of axial mean velocity component and pressure field parameters, which provide comprehensive information to aid and understand such complex recirculation flows. Flow field characteristics downstream of the swirler at different axial locations are examined in detail. The recirculation length and width are found to be strongly dependent on the amount of turbulence created by the vane swirler.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Experimental study of recirculating flows induced by vane swirler


    Beteiligte:


    Erscheinungsdatum :

    2009


    Format / Umfang :

    9 Seiten, 10 Bilder, 1 Tabelle, 20 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Annular Vane Swirler Performance

    David G. Lilley | AIAA | 1999




    Multi-swirler aerodynamics - Experimental measurements

    Cai, J. / Jeng, S.-M. / Tacina, R. | AIAA | 2001


    A new vane swirler as applied to dual-inlet side-dump combustor

    SITU, M. / QIU, X. / YU, Q. et al. | AIAA | 1992