Radiation interaction on forced and free convection across a horizontal cylinder

• Autorzy: Hossain M. A. , Kutubuddin M. , Takhar H. S.
• Języki publikacji: EN

Abstrakty

EN

An analysis is performed to study the flow and heat transfer characteristics of laminar combined forced and free convection, with the effects of radiation, of a viscous incompressible and optically dense fluid from a horizontal cylinder. The transformed convection equations of non-similar boundary layers obtained for both the forced convection flow and the natural convection flow dominated regimes are solved by the implicit finite difference method. Numerical results are obtained for different physical parameters, such as the Rosseland parameter, Rd and the surface temperature parameter, __ , for fluids having the Prandtl number of 0.7. Results are presented in terms of local skin-friction and the local Nusselt number against the angular displacement, _ ,as well as the buoyancy parameter, __ . It is observed that both the local shear and the Nusselt number increase due to an increase in the values of Rd and __ , in the entire pure forced to pure free convection regimes.

Słowa kluczowe

EN

radiation effects; mixed convection flow

PL

hydromechanika

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: Applied Mechanics and Engineering
• Rocznik: 1999
• Tom: Vol. 4, no 2
• Strony: 219--235
• Opis fizyczny: Bibliogr.18 poz., wykr.

Twórcy

autor

Hossain M. A.

autor

Kutubuddin M.

autor

Takhar H. S.

• Department of Mathematics, University of Dhaka, Dhaka 1000, BANGLADESH