AbstractWe have performed an experiment to investigate the onset and the flow pattern of magnetic Bénard convection under microgravity. Contrary to ground based Bénard convection, gravity and the density gradient are replaced by magnetic forces and a gradient of magnetization respectively. The experiment is carried out with a ferrofluid (a suspension of small magnetite particles) in a gap between two concentric cylinders heated from the axis and cooled on the outside. Periodic boundary conditions not feasible on earth are established in this experiment. The investigations are carried out during the approximatly 360 seconds of microgravity time in a TEXUS sounding rocket flight. Magnetic convection is clearly observed but the flow profile does not agree with what had been expected.


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    Titel :

    Magnetic Benard convection under microgravity


    Beteiligte:
    Hörsten, W.V. (Autor:in) / Odenbach, S. (Autor:in) / Stierstadt, K. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 11 , 7 ; 251-254


    Erscheinungsdatum :

    01.01.1991


    Format / Umfang :

    4 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch