Analysis of Conjugate Mixed Convection-Conduction Heat Transfer in A Vertical Heat Generating Cylinder Immersed in Power-Law Fluids

Analysis of Conjugate Mixed Convection-Conduction Heat Transfer in A Vertical Heat Generating Cylinder Immersed in Power-Law Fluids

R. KouhikamaliS.M.A.N.R. Abadi S.M. Hosseinnia S. Khanmohammadi 

Department of mechanical engineering, Faculty of engineering, University of Guilan, Rasht, Iran

Corresponding Author Email: 
kouhikamali@guilan.ac.ir
Page: 
61-68
|
DOI: 
https://doi.org/10.18280/ijht.310208
Received: 
N/A
| |
Accepted: 
N/A
| | Citation

OPEN ACCESS

Abstract: 

Conjugate mixed convection-conduction heat transfer from a circular cylinder submerged in power-law fluid has been investigated numerically. The steady two-dimensional conduction equation for the heating cylinder and steady two-dimensional laminar boundary layer equations for the flowing fluid are solved simultaneously using finite difference scheme. The effect of conduction-convection parameter, length to diameter ratio, heat generating, power law viscosity index, Prandtl and Richardson numbers on the temperature distribution in the cylinder and velocity and temperature distributions in the boundary layer are studied. Results showed the axial and radial velocity distributions in the boundary layer and the temperature of the cylinder increase as the heat generating parameter Q, conduction-convection parameter Fi and Richardson number increase. It is also observed that, increasing the Prandtl number decreases the velocity distributions in the boundary layer and on the contrary increases the temperature of the cylinder.

Keywords: 

conjugate, heat transfer, vertical cylinder, power-law fluid

1. Introduction
2. Problem statement and mathematical formulation
3. Numerical method and computational procedure
4. Results and Discussion
5. Conclusions
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