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Effects of Hall current and wall temperature oscillation on convective flow in a rotating fluid through porous medium

Einflüsse von Hallstrom und Wandtemperaturschwingungen auf die Konvektionsströmung in einem rotierenden Fluid durch ein poröses Medium

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Abstract

The combined effects of Hall current and plate temperature oscillation on the hydromagnetic free convective flow through a porous medium bounded by an infinite vertical limiting surface in a rotating fluid are discussed. The suction velocity perpendicular to the limiting surface is constant and the temperature of the limiting surface fluctuates with time about a non-zero constant mean. The expressions for the velocity and temperature fields are derived, and the effects of various parameters on the velocity and shear-stress are determined.

Zusammenfassung

Hier werden alle Einflüsse von Hallstrom und Plattentemperaturschwingungen auf eine hydromagnetische freie Konvektionsströmung durch ein poröses Medium analysiert. Das Medium wird von einer unendlichen, vertikalen Begrenzungsoberfläche in einem rotierenden Fluid eingeschränkt. Die Ansauggeschwindigkeit senkrecht zur Begrenzungsoberfläche bleibt konstant. Die Temperatur der Begrenzungsoberfläche schwankt mit der Zeit um einen konstanten, von Null verschiedenen Wert. Aussagen über die Geschwindigkeit und die Temperaturfelder werden hieraus abgeleitet und die Geschwindigkeit und Scherbeanspruchung bestimmt.

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Authors and Affiliations

  1. Department of Mathematics, Kenyatta University, P.O. Box 43844, Nairobi, Kenya

    P. C. Ram

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  1. P. C. Ram
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Ram, P.C. Effects of Hall current and wall temperature oscillation on convective flow in a rotating fluid through porous medium. Wärme- und Stoffübertragung 25, 205–208 (1990). https://doi.org/10.1007/BF01785406

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  • DOI: https://doi.org/10.1007/BF01785406

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