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Heat transfer to non-Newtonian power-law fluid past a continuously moving porous flat plate with heat flux

Wärmeübertragung bei Nicht-Newton'schen Fluiden, die dem Potenz-Ansatz gehorchen, entlang einer stetig bewegten, flachen, porösen Platte mit Wärmestrom

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Abstract

The analysis of heat transfer to the non-Newtonian power-law fluid flow past a continuously moving flat porous plate in presence of suction/injection with heat flux has been presented. We have obtained the solution using the method of successive approximations, starting with zero approximation. It has been observed that the results obtained forn=1 are in good agreement with the corresponding results for Newtonian fluid. For various values of flow indexn and the suction/injection parameter, temperature profiles and rate of heat transfer have been presented graphically. The effect of suction is to decrease in temperature and the rate of heat transfer, while reverse nature occurs for injection.

Zusammenfassung

Hier ist die Berechnung der Wärmeübertragung bei Nicht-Newton'schen Fluiden entlang einer sich stetig bewegenden, flachen Platte mit Wärmestrom dargestellt worden, bei der die Grenzschicht abgesaugt bzw. eingeblasen wird. Die Lösung erhielten die Verfasser mit dem Verfahren der sukzessiven Approximation, beginnend mit der Nullapproximation. Es ist festgestellt worde, daß die erhaltenen Ergebnisse fürn=1 mit den Ergebnissen für Newton'sche Fluide übereinstimmen. Für verschiedene Werte des Strömungsindexesn und des Absaug-/Einblasparameters sind die Temperaturprofile und die Wärmeübertragungsraten graphisch dargestellt worden. Beim Absaugen ergibt sich eine Erniedrigung der Temperatur und der Wärmeübertragungsrate, während genau das Gegenteil beim Einblasen eintritt.

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  1. Department of Mathematics, Shivaji University, 416 004, Kolhapur, India

    B. P. Jadhav & B. B. Waghmode

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  1. B. P. Jadhav
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  2. B. B. Waghmode
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Jadhav, B.P., Waghmode, B.B. Heat transfer to non-Newtonian power-law fluid past a continuously moving porous flat plate with heat flux. Wäarme- und Stoffübertragung 25, 377–380 (1990). https://doi.org/10.1007/BF01811562

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  • DOI: https://doi.org/10.1007/BF01811562

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