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Titolo/Abstract/Parole chiave

MHD THREE-DIMENSIONAL STAGNATION-POINT FLOW OF A MICROPOLAR FLUID

Borrelli, Alessandra - Giantesio, Giulia - Patria, Maria Cristina (2011) MHD THREE-DIMENSIONAL STAGNATION-POINT FLOW OF A MICROPOLAR FLUID. [Preprint] (Inedito)

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    Abstract

    The steady three-dimensional stagnation-point flow of an electrically conducting micropolar fluid in the absence and in the presence of a uniform external electromagnetic field (E0,H0) is analyzed and some physical situations are examined. In particular, we proved that if we impress an external magnetic field H0, and we neglect the induced magnetic field, then the steady MHD three-dimensional stagnation-point flow of such a fluid is possible if, and only if, H0 has the direction parallel to one of the axes. In all cases it is shown that the governing nonlinear partial differential equations admit similarity solutions. Moreover in the presence of an external magnetic field H0, it is found that the flow of a micropolar fluid has to satisfy an ordinary differential problem whose solution depend on H0 through the Hartmann number M. Finally, the skin-friction components along the axes are computed.

    Tipologia del documento:Preprint
    Data:23 Marzo 2011
    Istituzione:Università degli Studi di Ferrara
    Struttura:Dipartimento > Matematica
    Soggetti:Area 01 - Scienze matematiche e informatiche > MAT/07 Fisica matematica
    Parole chiave:Micropolar Fluids, MHD flow, three-dimensional stagnation-point flow
    Numero identificativo:371
    Depositato il:23 Mar 2011 15:12

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