AbstractThis paper reports on an experimental study motivated by the issue of vortex formation in fuel tanks of liquid propulsion rockets. In this study, vortex funnel (vortex-air core) formation during draining of liquids from cylindrical tanks is suppressed by means of a simple, yet effective method of controlling or adjusting the size of the base drain port. This is particularly relevant in spacecraft and rocket applications where suppression of such vortex-air core is very much warranted because of the possible drain port blockage they cause and the consequent adverse impact (of vortices) on the generation of propulsive thrust. It is found that in the range of rotational speeds provided to the liquid column (between 120 and 200 rpm) in a cylindrical tank, for d/D∼0.03 (where D is the tank diameter held constant in the study, and d is the port diameter that is varied in the experiments), vortex funnel formation is completely eliminated for concentric drain ports. For eccentric ports, this occurs at a slightly higher value of port size, viz., d/D∼0.04. The liquid used is water at room temperature with its free surface open to the atmosphere.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Vortex Suppression through Drain Port Sizing




    Erscheinungsdatum :

    2016




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    55.50 Luftfahrzeugtechnik / 51.40 Werkstoffe für bestimmte Anwendungsgebiete / 55.60 Raumfahrttechnik
    Lokalklassifikation TIB:    770/7040



    Vortex Suppression through Drain Port Sizing

    Ajith Kumar, R. / Joykutty, Josy / Shaji, Rahul Korah et al. | ASCE | 2016


    Vortex Suppression through Drain Port Sizing

    Ajith Kumar, R | Online Contents | 2016


    Vortex Formation during Draining from Cylindrical Tanks: Effect of Drain Port Eccentricity

    Ajith Kumar, R. / Nair, Ragesh R. / Prabhu, Mahadev et al. | ASCE | 2017