Online from: 1991
Subject Area: Mechanical & Materials Engineering
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|Title:||Conjugate forced convection flow past a circular cylinder with internal heat generation in a porous medium|
|Author(s):||Nur F. Abd Kadir, (Department of Mechanical Engineering, University of Bath, Bath, UK), D.A.S. Rees, (Department of Mechanical Engineering, University of Bath, Bath, UK), Ioan Pop, (Faculty of Mathematics, University of Cluj, Cluj, Romania)|
|Citation:||Nur F. Abd Kadir, D.A.S. Rees, Ioan Pop, (2008) "Conjugate forced convection flow past a circular cylinder with internal heat generation in a porous medium", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 18 Iss: 6, pp.730 - 744|
|Keywords:||Convection, Flow, Heat transfer, Porous materials|
|Article type:||Research paper|
|DOI:||10.1108/09615530810885542 (Permanent URL)|
|Publisher:||Emerald Group Publishing Limited|
|Acknowledgements:||One of the authors (IP) wishes to thank the Royal Society for partial financial support. The authors would like to thank one of the referees for making them aware of the paper by Kimura and Yoneya.|
Purpose – The aim is to determine the effect of different conductivity ratios on forced convection past a circular cylinder embedded in a porous medium, where the solid cylinder forms a uniform heat source.
Design/methodology/approach – The authors employ an unsteady finite difference method to obtain the resulting steady-state solutions. Interface conditions are applied using the fictitious point method.
Findings – It is found that, the thermal field within the cylinder and in the external porous region depend strongly on the ratio of the respective conductivities. In the extreme cases the cylinder acts either as one with a uniform temperature (high-cylinder conductivity) or with a uniform heat flux (low-cylinder conductivity).
Research limitations/implications – Conductivity ratios in the range 0.1=
Originality/value – Forced convection studies usually focus on cases where the solid phase has a prescribed temperature or heat flux. The present paper employs a uniform heat generation within the cylinder to determine how the therrmal field depends on the Péclet number and the conductivity ratio.
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