Mixed convection flow of micropolar fluid in a vertical channel with symmetric and asymmetric wall heating conditions

• Autorzy: Umavathi J. C. , Prathap Kumar J.
• Języki publikacji: EN

Abstrakty

EN

The theory of micro polar fluids due to Eringen is used to formulate a set of equations for the mixed convective flow and heat transfer in a vertical channel. The two boundaries of the channel are kept either at equal or at different temperatures. Through a proper choice of non-dimensional variables and parameters, the governing equations are developed and three types of thermal boundary conditions are prescribed. These thermal boundaries are isothermal-isothermal, isoflux-isothermal and isothermal-isoflux for the left-right walls of the channel. Exact analytical solutions are obtained for the velocity and temperature fields for heat generation/absorption conditions. It is found that the material and source/sink parameters have significant effects on the flow. A parametric study is conducted and the results are presented and discussed. By making the Newtonian solvent more and more micropolar, it is possible to obtain drag reduction.

Słowa kluczowe

EN

micropolar fluid; vertical channel; mixed convection

PL

płyn mikropolarny; konwekcja

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2011
• Tom: Vol. 16, no 1
• Strony: 141--159
• Opis fizyczny: Bibliogr. 21 poz., wykr.

Twórcy

autor

Umavathi J. C.

autor

Prathap Kumar J.

• Department of Mathematics, Gulbarga University Gulbarga. 585 106, Karnataka, INDIA,

Bibliografia

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