Mixed-convection film condensation with downward flowing vapors onto a finite-size horizontal wavy plate is studied by a simple mathematical model and the spline alternating-direction implicit method. Effects of the wavy geometry, the interfacial vapor shear and the pressure gradient on the local condensate film thickness and the heat transfer characteristics have been studied independently. Results show that the pressure gradient tends to increase the heat transfer rate and to decrease the influence of the wavy amplitude. The appropriate wave number which can enhance the maximum condensation heat transfer rate is found in the neighborhood of lunder all circumstances.

1.
Nusselt
,
W.
,
1916
, “
Oberflachen Condensation Des Wasserdampfes
,”
Zeitschrift des Vereines Deutscher Ininuere
,
60
, pp.
541
569
.
2.
Leppert
,
G.
, and
Nimmo
,
B.
,
1968
, “
Laminar Film Condensation on Surfaces Normal to Body of Inertial Forces
,”
ASME J. Heat Transfer
,
80
, pp.
178
179
.
3.
Shigechi
,
T.
,
Kawa
,
N.
,
Tokita
,
Y.
, and
Yamada
,
T.
,
1990
, “
Film Condensation Heat Transfer on a Finite-Size Horizontal Plate Facing Upward
,”
Trans. Jpn. Soc. Mech. Eng., Ser. B
,
56
, pp.
205
210
.
4.
Yang
,
S. A.
, and
Chen
,
C. K.
,
1992
, “
Laminar Film Condensation on a Finite-Size Horizontal Plate with Suction at the Wall
,”
Appl. Math. Model.
,
16
, pp.
325
329
.
5.
Webb
,
R. L.
,
Rudy
,
T. M.
, and
Kedzierski
,
M. A.
,
1985
, “
Prediction of the Condensation Coefficient on Horizontal Integral-Fin Tubes
,”
ASME J. Heat Transfer
,
107
, pp.
369
376
.
6.
Honda
,
H.
,
Takamatsu
,
H.
, and
Takata
,
N.
,
1999
, “
Experimental Measurements for Condensation of Downward-Flowing R123/R134a in a Staggered Bundle of Horizontal Low-Finned Tubes with Four Fin Geometries
,”
Int. J. Refrig.
,
22
,
615
624
.
7.
Rohsenow
,
W. M.
,
1956
, “
Heat Transfer and Temperature Distribution in Laminar Film Condensation on a Horizontal Tube
,”
Int. J. Heat Mass Transf.
,
27
, pp.
39
47
.
8.
Shekriladze
,
I. G.
, and
Gomelauri
,
V. I.
,
1966
, “
The Theoretical Study of Laminar Film Condensation of a Flowing Vapor
,”
Int. J. Heat Mass Transf.
,
9
, pp.
581
591
.
9.
Rubin
,
S. G.
, and
Graves
,
R. A.
,
1975
, “
Viscous Flow Solution with a Cubic Spline Approximation
,”
Comput. Fluids
,
1
, No.
5
, pp.
1
36
.
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