AbstractNear critical fluids are very sensitive to gravity because of their great compressibility. Zero gravity conditions provide an environment which suppresses convective instability and enables other possible modes of transport to be evidenced. A numerical modeling suggests that even though the heat diffusivity goes to zero in such fluids, the transport of heat is strongly enhanced by a so-called “Piston Effect”. This effect is the adiabatic heating of the bulk phase by a strong acoustic field. It has been observed during a sounding rocket experiment (Texus 25, May 1990).


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    Title :

    Anomalies of heat transport in near critical fluids under weightlessness


    Contributors:
    Zappoli, B. (author) / Beysens, D. (author) / Guenoun, P. (author) / Khalil, B. (author) / Garrabos, Y. (author) / Le Neindre, B. (author)

    Published in:

    Advances in Space Research ; 11 , 7 ; 269-276


    Publication date :

    1991-01-01


    Size :

    8 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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    Critical Point Phenomena under weightlessness

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    New Critical Phenomena Observed Under Weightlessness

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