The intermittency profile in the turbulent flat-plate zero pressure-gradient boundary-layer and a thick axisymmetric boundary-layer has been computed using the Reynolds-averaged model, where k denotes turbulent kinetic energy, ε its rate of dissipation, and γ intermittency. The Reynolds-averaged model is simpler compared to the conditional model used in the literature. The dissipation equation of the Reynolds-averaged model is modified to account for the effect of entrainment. It has been shown that the model correctly predicts the observed intermittency of the flows. [S0098-2202(00)02403-2]
Issue Section:
Technical Papers
1.
Byggstoyl
, S.
, and Kollmann
, W.
, 1981
, “Closure Model for Intermittent Turbulent Flows
,” Int. J. Heat Mass Transfer
, 24
, No. 11
, pp. 1811
–1822
.2.
Byggstoyl
, S.
, and Kollmann
, W.
, 1986
, “A Closure Model for Conditioned Stress Equations and its Application to Turbulent Shear Flows
,” Phys. Fluids
, 29
, pp. 1430
–1443
.3.
Cho
, J. R.
, and Chung
, M. K.
, 1992
, “A k−ε−γ Equation Turbulence Model
,” J. Fluid Mech.
, 237
, pp. 301
–322
.4.
Ahn
, J. W.
, and Sung
, H. J.
, 1995
, “Prediction of Two-Dimensional Momentumless Wake by k−ε−γ Model
,” AIAA J.
, 33
, No. 4
, pp. 611
–617
.5.
Dewan
, A.
, Arakeri
, J. H.
, and Srinivasan
, J.
, 1997
, “A New Turbulence Model for the Axisymmetric Plume
,” Appl. Math. Model.
, 21
, pp. 709
–719
.6.
Kalita
, K.
, Dewan
, A.
, and Dass
, A. K.
, 2000
, “Computation of the Turbulent Plane Plume using k−ε−t′2¯−γ Model
,” Appl. Math. Model.
, 24
, No. 11
, pp. 815
–826
.7.
Wang
, Y. Q.
, and Derksen
, R. W.
, 1999
, “Prediction of Developing Turbulent Pipe Flow by a Modified k−ε−γ Model
,” AIAA J.
, 37
, No. 2
, pp. 268
–270
.8.
Dewan
, A.
, and Arakeri
, J. H.
, 1996
, “Comparison for Four Turbulence Models for Wall-Bounded Flows Affected by Transverse Curvature
,” AIAA J.
, 36
, No. 4
, pp. 842
–844
.9.
Patel
, V. C.
, Rodi
, W.
, and Scheuerer
, G.
, 1985
, “Turbulence Models for Near-Wall and Low Reynolds Number Flows: A Review
,” AIAA J.
, 23
, No. 9
, pp. 1308
–1319
.10.
Libby
, P. A.
, 1975
, “On the Prediction of Intermittent Turbulent Flows
,” J. Fluid Mech.
, 68
, pp. 273
–295
.11.
Dopazo
, C.
, 1977
, “On Conditioned Averages for Intermittent Turbulent Flows
,” J. Fluid Mech.
, 81
, pp. 433
–439
.12.
Patankar, S. V., 1980, Numerical Heat Transfer and Fluid Flow, Hemisphere Publishing, New York.
13.
Anderson, D. A., Tannehill, J. C., and Pletcher, R. H., 1984, Computational Fluid Mechanics and Heat Transfer, Hemisphere, New York.
14.
White, F. M., 1991, Viscous Fluid Flow, McGraw-Hill, NY.
15.
Dewan, A., 1996, “Turbulence Modelling of Thick Axisymmetric Wall-Bounded Flows and Axisymmetric Plume,” Ph.D. thesis, Department of Mechanical Engineering, Indian Institute of Science, Bangalore, India.
16.
Klebanoff, P. S., 1955, “Characteristics of Turbulence in a Boundary Layer with Zero Pressure Gradient,” NACA Report 1247.
17.
Cazalbou
, J. B.
, and Bradshaw
, P.
, 1993
, “Turbulent Transport in Wall-Bounded Flows. Evaluation of Model Coefficients Using Direct Simulation
,” Phys. Fluids
, 5
, No. 12
, pp. 3233
–3239
.18.
Lueptow
, R. M.
, and Haritonidis
, J. H.
, 1987
, “The Structure of the Turbulent Boundary Layer on a Cylinder in Axial Flow
,” Phys. Fluids
, 30
, No. 10
, pp. 2993
–3005
.19.
Lueptow
, R. M.
, Leehey
, P.
, and Stellinger
, T.
, 1985
, “The Thick, Turbulent Boundary Layer on a Cylinder: Mean and Fluctuating Velocities
,” Phys. Fluids
, 28
, No. 12
, pp. 3495
–3505
.20.
Willmarth
, W. W.
, Winkel
, R. E.
, Sharma
, L. K.
, and Bogar
, T. J.
, 1976
, “Axially Symmetric Turbulent Boundary Layers on Cylinders: Mean Velocity Profiles and Wall Pressure Fluctuations
,” J. Fluid Mech.
, 76
, pp. 35
–64
.21.
Cebeci
, T.
, 1970
, “Laminar and Turbulent Incompressible Boundary-Layers on Slender Bodies of Revolution in Axial Flow
,” ASME J. Basic Eng.
, 92
, No. 3
, pp. 545
–554
.22.
Cebeci
, T.
, 1973
, “Eddy Viscosity Distribution in Thick Axisymmetric Turbulent Boundary Layer
,” ASME J. Fluids Eng.
, 95
, No. 2
, pp. 319
–326
.Copyright © 2000
by ASME
You do not currently have access to this content.
