Thermal dispersion due to local flows is significant in heat transfer with forced convection in porous media. The effects of parametrized melting (M)⁠, thermal dispersion (D)⁠, inertia (F)⁠, and mixed convection (Ra/Pe) on the velocity distribution, temperature, and Nusselt number on non-Darcy, mixed convective heat transfer from an infinite vertical plate embedded in a saturated porous medium are examined. It is observed that the Nusselt number decreases with increase in melting parameter and increases with increase in thermal dispersion.

Issue Section:
Technical Briefs
Keywords:
porous medium, melting, thermal dispersion, mixed convection, flow through porous media, forced convection
Topics:
Flow (Dynamics), Melting, Mixed convection, Porous materials, Forced convection, Temperature, Inertia (Mechanics), Heat transfer
1.
Nield
,
D. A.
, and
Bejan
,
A.
, 1992,
Convection in Porous Media
,
Springer-Verlag
,
New York
.
2.
Amiri
,
A.
, and
Vafai
,
K.
, 1994, “
Analysis of Dispersion Effects and Non-Thermal Equilibrium, Non-Darcian, Variable Porosity Incompressible Flow Through Porous Media
,”
Int. J. Heat Mass Transfer
0017-9310,
37
, pp.
939
–
954
.
Crossref
Search ADS
 
3.
Gorla
,
R. S. R.
,
Mansour
,
M. A.
,
Hassanien
,
I. A.
, and
Bakier
,
A. Y.
, 1999, “
Mixed Convection Effect on Melting From a Vertical Plate in a Porous Medium
,”
Transp. Porous Media
0169-3913,
36
, pp.
245
–
254
.
Crossref
Search ADS
 
4.
Tashtoush
,
B.
, 2005, “
Magnetic and Buoyancy Effects on Melting From a Vertical Plate Embedded in Saturated Porous Media
,”
Energy Convers. Manage.
0196-8904,
46
, pp.
2566
–
2577
.
Crossref
Search ADS
 
5.
Nield
,
D. A.
, 2007, “
Impracticality of MHD Convection in a Porous Medium
,”
Transp. Porous Media
0169-3913,
73
, pp.
379
–
380
.
Crossref
Search ADS
 
6.
Cheng
,
W. T.
, and
Lin
,
C. H.
, 2007, “
Melting Effect on Mixed Convective Heat Transfer With Aiding and Opposing External Flows From the Vertical Plate in a Liquid-Saturated Porous Medium
,”
Int. J. Heat Mass Transfer
0017-9310,
50
, pp.
3026
–
3034
.
Crossref
Search ADS
 
7.
Murthy
,
P. V. S. N.
, 1998, “
Thermal Dispersion and Viscous Dissipation Effects on Non-Darcy Mixed Convection in a Fluid Saturated Porous Medium
,”
Int. J. Heat Mass Transfer
0017-9310,
33
, pp.
295
–
300
.
Crossref
Search ADS
 
8.
Plumb
,
O. A.
, 1983, “
The Effect of Thermal Dispersion on Heat Transfer in Packed Bed Boundary Layers
,”
Proceedings of the First ASME/JSME Thermal Engineering Joint Conference
, Vol.
2
, pp.
17
–
21
.
Copyright © 2010
 by American Society of Mechanical Engineers
You do not currently have access to this content.