In this study the primary goal is to investigate the loss of stability of the steady convection in deformable liquid bridges under different surrounding thermal conditions ( Pt =105). For the first time, it is experimentally obtained that the two branches of the function critical Marangoni numbers versus variation of the volume, correspond to different azimuthal wave numbers. The branch on which Δ T cr grows with increasing volume belongs to m =1, and the descending branch belongs to the azimuthal wave number m =2. The influence of the mean temperature inside liquid bridge (temperature of the cold rod) on the onset of instability is experimentally considered. These experiments can display the role of temperature dependent viscosity and of the thermal conditions around the liquid bridge.


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    Title :

    Ground based experiments about stability of deformable liquid bridges


    Contributors:

    Conference:

    SPACE TECHNOLOGY AND APPLICATIONS INTERNATIONAL FORUM - 2000 ; 2000 ; Albuquerque, New Mexico (USA)


    Published in:

    AIP Conference Proceedings ; 504 , 1 ; 872-877


    Publication date :

    2000-01-19


    Size :

    6 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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