Numerical study of non-Darcy forced convective heat transfer in a power law fluid over a stretching sheet

• Autorzy: Prasad K. V. , Datti P. S.
• Języki publikacji: EN

Abstrakty

EN

An analysis has been carried out to study the non-Darcy flow behavior and heat transfer characteristics of a non-Newtonian power law fluid over a non-isothermal stretching sheet with variable thermal conductivity and internal heat generation/absorption. Thermal conductivity is assumed to vary as a linear function of temperature. The partial differential equations governing the flow and heat transfer are converted into ordinary differential equations by a similarity transformation. The presence of non-Darcy forced convection and power law index leads to coupling and non-linearity in the boundary value problem. Because of the coupling and non-linearity, the problem has been solved numerically by the Keller box method. The computed values of horizontal velocity and temperature, boundary layer thickness are shown graphically in tables and figures. Several reported works on the problem are obtained as limiting cases of the present study. The results of the study have implications in extrusion processes and in other applications with porous media.

Słowa kluczowe

EN

power-law fluid; stretching sheet; porosity parameter; inertia parameter; local Reynolds number; modified Prandtl number; heat source/sink parameter; variable thermal conductivity; power-law index; Nusselt number; skin friction

PL

liczba Reynoldsa; liczba Nusselta; tarcie powierzchniowe; liczba Prandtla

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2009
• Tom: Vol. 14, no 2
• Strony: 473--488
• Opis fizyczny: Bibliogr. 32 poz., tab., wykr.

Twórcy

autor

Prasad K. V.

autor

Datti P. S.

• Department of Mathematics, Central College Campus Bangalore University Bangalore 560 001, INDIA,

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