The problem of mixed convection from horizontal surfaces in a porous medium saturated with a power-law-type non-Newtonian fluid is investigated. The transformed conservation laws are solved numerically for the case of variable wall heat flux conditions. Results for the details of the velocity and temperature fields as well as the Nusselt number have been presented. The viscosity index ranged from 0.5–1.5.

1.
Aldoss
T. K.
,
Chen
T. S.
, and
Armaly
B. F.
,
1994
, “
Mixed Convection Over Nonisothermal Horizontal Surface in a Porous Medium: The Entire Regime
,”
Numerical Heat Transfer
, Vol.
25
, pp.
685
701
.
2.
Chen
H. T.
, and
Chen
C. K.
,
1987
, “
Natural Convection of Non-Newtonian Fluids About a Horizontal Surface in a Porous Medium
,”
ASME JOURNAL OF ENERGY RESOURCES TECHNOLOGY
, Vol.
109
, pp.
119
123
.
3.
Cheng
P.
,
1977
, “
Similarity Solution for Mixed Convection From Horizontal Impermeable Surface in Saturated Porous Media
,”
International Journal of Heat and Mass Transfer
, Vol.
20
, pp.
893
898
.
4.
Cheng
P.
, and
Chang
I.
,
1976
, “
Buoyancy Induced Flows in a Saturated Porous Medium Adjacent to Impermeable Horizontal Surfaces
,”
International Journal of Heat and Mass Transfer
, Vol.
19
, pp.
1267
1272
.
5.
Christopher
R. H.
, and
Middleman
S.
,
1965
, “
Power-Law Flow Through a Packed Tube
,”
I & EC Fundamentals
, Vol.
4
, pp.
422
426
.
6.
Dharmadhikari
R. V.
, and
Kale
D. D.
,
1985
, “
Flow of Non-Newtonian Fluids Through Porous Media
,”
Chemical Engineering Science
, Vol.
40
, pp.
527
529
.
7.
Mehta
K. N.
, and
Rao
K. N.
,
1994
, “
Buoyancy-induced Flow of Non-Newtonian Fluids in a Porous Medium Past a Vertical Plate With Nonuniform Surface Heat Flux
,”
International Journal of Engineering Science
, Vol.
32
, pp.
297
302
.
8.
Minkowyez
W. J.
,
Cheng
P.
, and
Chang
C. H.
,
1985
, “
Mixed Convection About a Nonisothermal Cylinder and Sphere in a Porous Medium
,”
Numerical Heat Transfer
, Vol.
8
, pp.
349
359
.
9.
Nakayama
A.
, and
Koyama
H.
,
1991
, “
Buoyancy-Induced Flow of Non-Newtonian Fluids Over a Non-Isothermal Body of Arbitrary Shape in a Fluid-Saturated Porous Medium
,”
Applied Scientific Research
, Vol.
48
, pp.
55
70
.
10.
Nakayama
A.
, and
Pop
I.
,
1985
, “
A Unified Similarity Transformation for Free, Forced and Mixed Convection in Darcy and non-Darcy Porous Media
,”
International Journal of Heat and Mass Transfer
, Vol.
28
, pp.
683
697
.
This content is only available via PDF.
You do not currently have access to this content.