Effect of heat generation/absorption on natural convective boundary-layer flow from a vertical cone embedded in a porous medium filled with a non-Newtonian nanofluid

F. M. Hady, F. S. Ibrahim, S. M. Abdel-Gaied, Eid Mohamed

Research output: Contribution to journalJournal articlepeer-review

54 Scopus citations

Abstract

This work is focused on the study of the natural convection boundary-layer flow over a downward-pointing vertical cone in a porous medium saturated with a non-Newtonian nanofluid in the presence of heat generation or absorption. The transformed boundary layer governing equations are solved numerically. The influences of pertinent parameters such as the heat generation or absorption, the solid volume fraction of nanoparticles and the type of nanofluid on the flow and heat transfer rate in terms of Nusselt number are discussed. Comparisons with previously published work on special cases of the problem are performed and found to be in excellent agreement. The generalized governing equations derived in this work can be applied to different cases of non-Newtonian fluids with different values of the power-law viscosity index. The results of this parametric study are shown graphically and the physical aspects of the problem are highlighted and discussed.

Original languageEnglish
Pages (from-to)1414-1420
Number of pages7
JournalInternational Communications in Heat and Mass Transfer
Volume38
Issue number10
DOIs
StatePublished - Dec 2011
Externally publishedYes

Keywords

  • Heat generation or absorption
  • Natural convection
  • Non-Newtonian nanofluid
  • Porous media

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