This paper concerns a numerical investigation of the heat and fluid flow in V-shaped ribbed ducts. The Navier-Stokes equations and the energy equation are solved in conjunction with a low Reynolds number k–ε turbulence model. The Reynolds turbulent stresses are computed with an explicit algebraic stress model (EASM) while the turbulent heat fluxes are calculated with a simple eddy diffusivity model (SED). Detailed velocity and thermal field results have been used to explain the effects of the V-shaped ribs and the mechanisms of the heat transfer enhancement.

1.
Sunde´n
,
B.
,
1999
, “
Enhancement of Convective Heat Transfer in Rib-roughened Rectangular Ducts
,”
J. Enhanced Heat Transfer
,
6
, pp.
89
103
.
2.
Han
,
J. C.
,
Zhang
,
Y. M.
, and
Lee
,
C. P.
,
1991
, “
Augmented Heat Transfer in Square Channels with Parallel, Crossed, and V-shaped Angled Ribs
,”
ASME J. Heat Transfer
,
113
, pp.
590
596
.
3.
Taslim
,
M. E.
,
Liu
,
T.
, and
Kercher
,
D. M.
,
1996
, “
Experimental Heat Transfer and Friction in Channels Roughened with Angled, V-shaped, and Discrete Ribs on Two Opposite Walls
,”
ASME J. Turbomach.
,
118
(
1
), pp.
20
28
.
4.
Olsson
,
C. O.
, and
Sunde´n
,
B.
,
1998
, “
Experimental Study of Flow and Heat Transfer in Rib-Roughened Rectangular Channels
,”
Exp. Therm. Fluid Sci.
,
16
(
4
), pp.
349
365
.
5.
Gao
,
X.
, and
Sunde´n
,
B.
,
2001
, “
Heat Transfer and Pressure Drop Measurements in Rib-Roughened Rectangular Ducts
,”
Exp. Therm. Fluid Sci.
,
24
(
1–2
), pp.
25
34
.
6.
Jia
,
R.
, and
Sunde´n
,
B.
,
2003
, “
Parallelization of a Multi-Blocked CFD Code via Three Strategies for Fluid Flow and Heat Transfer Analysis
,”
Comput. Fluids
,
33
, pp.
57
80
.
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