Measurements of wake-affected heat transfer distributions on a flat plate are made by use of a wake generator that consists of a rotating disk and several types of circular cylinder. The main purpose of this study is to construct a wake-induced transition model in terms of an intermittency factor, considering the evolution of the wake-induced turbulent region, a so-called turbulent patch in a distance–time diagram. A comparison between the proposed transition model and the measured heat transfer data reveals that the transition model yields good agreement with the measured data of all test conditions in this study.
Issue Section:
Research Papers
1.
Addison
J. S.
Hodson
H. P.
1990
a, “Unsteady Transition in an Axial-Flow Turbine: Part I—Measurements on the Turbine Rotor
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 112
, pp. 206
–214
.2.
Addison
J. S.
Hodson
H. P.
1990
b, “Unsteady Transition in an Axial-Flow Turbine: Part II—Cascade Measurements and Modeling
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 112
, pp. 215
–222
.3.
Addison
J. S.
Hodson
H. P.
1992
, “Modeling of Unsteady Transition Boundary Layers
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 114
, pp. 580
–589
.4.
Dong
Y.
Cumpsty
N. A.
1990
, “Compressor Blade Boundary Layers: Part 2—Measurements With Incident Wakes
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 112
, pp. 231
–240
.5.
Dullenkopf
K.
Schulz
A.
Witting
S.
1991
, “The Effect of Incident Wake Conditions on the Mean Heat Transfer of an Airfoil
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 113
, pp. 412
–418
.6.
Dullenkopf
K.
Mayle
R. E.
1994
, “The Effects of Incident Turbulence and Moving Wakes on Laminar Heat Transfer in Gas Turbine
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 116
, pp. 23
–28
.7.
Emmons
H. W.
1951
, “The Laminar-Turbulent Transition in a Boundary Layer—Part I
,” Journal of Aeronautical Science
, Vol. 18
, pp. 490
–498
.8.
Funazaki
K.
Meguro
T.
Yamawaki
S.
1993
, “Studies on the Unsteady Boundary Layer on a Flat Plate Subjected to Incident Wakes (Forced Transition Models of the Boundary Layer)
,” JSME International Journal
, Vol. 36
, pp. 532
–539
.9.
Han
J. C.
Zhang
L.
Ou
S.
1993
, “Influence of Unsteady Wake on Heat Transfer Coefficient From a Gas Turbine Blade
,” ASME Journal of Heat Transfer
, Vol. 115
, pp. 904
–911
.10.
Hodson
H. P.
1990
, “Modeling Unsteady Transition and Its Effect on Profile Loss
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 112
, pp. 619
–701
.11.
Kays, W. M., and Crawford, M. E., 1980, Convective Heat and Mass Transfer, McGraw-Hill, New York, p. 140.
12.
Kline, S. J., and McClintock, F. A., 1953, “Describing Uncertainties in Single Sample Experiments,” Mechanical Engineering, Jan., pp. 3–8.
13.
LaGraff
J. E.
Ashworth
D. A.
Schultz
D. L.
1989
, “Measurement and Modeling of the Gas Turbine Blade Transition Process as Disturbed by Wakes
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 111
, pp. 315
–322
.14.
Mayle
R. E.
1991
, “The Role of Laminar-Turbulent Transition in Gas Turbine Engines
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 113
, pp. 509
–537
.15.
Mayle
R. E.
Dullenkopf
K.
1990
, “A Theory for Wake-Induced Transition
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 112
, pp. 188
–195
.16.
Mayle
R. E.
Dullenkopf
K.
1991
, “More on the Turbulent-Strip Theory for Wake-Induced Transition
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 113
, pp. 428
–432
.17.
Meyer
R. X.
1957
, “The Effect of Wakes on the Transient Pressure and Velocity Distributions in Turbomachines
,” ASME Journal of Basic Engineering
, Vol. 80
, pp. 1544
–1552
.18.
Orth
U.
1993
, “Unsteady Boundary-Layer Transition in Flow Periodically Disturbed by Wakes
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 115
, pp. 707
–713
.19.
Pfeil, H., and Herbst, R., 1979, “Transition Procedure of Instationary Boundary Layer,” ASME Paper No. 79-GT-128.
20.
Pfeil
H.
Herbst
R.
Schroder
T.
1983
, “Investigation of the Laminar-Turbulent Transition of Boundary Layers Disturbed by Wakes
,” ASME Journal of Engineering for Power
, Vol. 105
, pp. 130
–137
.21.
Walker
G. J.
1993
, “The Role of Laminar-Turbulent Transition in Gas Turbine Engines: A Discussion
,” ASME JOURNAL OF TURBOMACHINERY
, Vol. 115
, pp. 207
–217
.
This content is only available via PDF.
Copyright © 1996
by The American Society of Mechanical Engineers
You do not currently have access to this content.