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Effect of wall conductances on hydromagnetic flow and heat transfer in a rotating channel

Einfluß der Wandleitfähigkeit auf die hydromagnetische Strömung und den Wärmeübergang in einem rotierenden Kanal

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Summary

Wall conductance effects on the hydromagnetic flow and heat transfer between two parallel plates in a rotating frame of reference has been studied when the liquid is permeated by a transverse magnetic field. An exact solution of the governing equations has been obtained. It is found that the velocity, current density and the temperature depend only on the sum of the wall conductances φ1 + φ2 = φ but magnetic field depends on the individual values of φ1 and φ2, where φ1 and φ2 are respectively the wall conductance ratios of the upper and lower walls.

Zusammenfassung

In der Arbeit wird der Einfluß der Leitfähigkeit der Wände auf die MHD-Strömung sowie auf den Wärmeübergang untersucht für den Fall, daß sich das zähe Medium zwischen zwei rotierenden Platten befindet und ein Magnetfeld parallel zur Rotationsachse angelegt wird. Es wird eine exakte Lösung des Problems gegeben. Es zeigt sich, daß die Geschwindigkeit, die Stromdichte und die Temperatur nur von der Summe der Leitfähigkeiten der Wände + φ2 = φ abhängen, dagegen hängt die magnetische Feldstärke von den individuellen Werten φ1 und φ2 ab, wobei φ1 und φ2 die Leitfähigkeiten der oberen bzw. unteren Wand bezeichnen.

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Mazumder, B.S. Effect of wall conductances on hydromagnetic flow and heat transfer in a rotating channel. Acta Mechanica 28, 85–99 (1977). https://doi.org/10.1007/BF01208791

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