Natural convection and radiation in a radial porous fin with variable thermal conductivity
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Department of Mathematics, Razi University Kermanshah 67149, IRAN
Department of Mechanical Engineering Cleveland State University Cleveland, Ohio, USA
Online publication date: 2014-03-07
Publication date: 2014-02-01
International Journal of Applied Mechanics and Engineering 2014;19(1):27-37
In this study, the effects of radiation and convection heat transfer in a radial porous fin are considered. The geometry considered is that of a rectangular profile fin. The porous fin allows the flow to infiltrate through it and solid-fluid interaction takes place. This study is performed using Darcy’s model to formulate the heat transfer equation. The thermal conductivity is assumed to be a function of temperature. The effects of the natural convection parameter Nc , radiation parameter Nr and thermal conductivity parameter m on the dimensionless temperature distribution and heat transfer rate are discussed. The results suggest that the radiation transfers more heat than a similar model without radiation
Abu-Hijleh (2003): Enhanced forced convection heat transfer from a cylinder using permeable fins. - ASME J. Heat Transfer, vol.125, pp.804-811.
Darvishi M.T. (2007): Spectral collocation method and Darvishis preconditionings for Tchebychev-Gauss-Lobatto points. - International Mathematical Forum, vol.2(6), pp.263-272.
Gorla R.S.R. and Bakier A.Y. (2011): Thermal analysis of natural convection and radiation in porous fins. - Int.
Commun. Heat Mass Transfer, vol.38, pp.638-645.
Kiwan S. (2006): Thermal analysis of natural convection in porous fins. - Transport in Porous Media, vol.67, pp.17-29.
Kundu B. and Bhanja D. (2010): Performance and optimization analysis of a constructal T-shaped fin subject to variable thermal conductivity and convective heat transfer coefficient. - Int. J. Heat Mass Transfer, vol.53 pp.254-267.
Lorenzini G. and Moretti S. (2007): Numerical analysis on heat removal from Y-shaped fins: efficiency and volume occupied for a new approach to performance optimization. - Int. J. Thermal Science, vol.46, pp.573-579.
Mobedi M. and Sunden B. (2006): Natural convection heat transfer from a thermal heat source located in a vertical plate fin. - Int. J. Heat Mass Transfer, vol.33, pp.943-950.
Nguyen A. and Aziz A. (1992): The heat transfer rate from convecting-radiating fins for different profile shapes. - Heat and Mass Transfer, vol.27 pp.67-72.
Yu L.T. and Chen C.K. (1999): Optimization of circular fins with variable thermal parameters. - J. Franklin Institute, vol.336 pp.77-95.
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