Abstract Magneto thermal free convection of air in a square enclosure under a non-uniform magnetic field provided by a permanent magnet is numerically studied. The results show that the natural convection of air in the square enclosure under magnetic field is quite different from that under the gravity field. The local value of Nusselt number under the magnetic field can reach to a much higher value than the maximum local value under the gravity field. Relatively uniform distribution of Nusselt number can be obtained along the cold wall of the enclosure under the magnetic field. A permanent magnet with high magnetic energy product with B r reaches to 3.5 Tesla can plays a comparative role on the average Nusselt number compared with that under the gravity environment.


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    Title :

    Numerical Study of Magneto Thermal Free Convection of Air Under Non-uniform Permanent Magnetic Field


    Contributors:
    Song, Kewei (author) / Zhou, Yang (author) / Li, Wenkai (author) / Lu, Yuanru (author)


    Publication date :

    2014-01-01


    Size :

    11 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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