DOI: 10.1017/s0022112074001479. The structure of the viscous sublayer and the adjacent wall region in a turbulent channel flow

The structure of the viscous sublayer and the adjacent wall region in a turbulent channel flow

10.1017/s0022112074001479

Crossref journal-article

Cambridge University Press (CUP)

Journal of Fluid Mechanics (56)

Abstract

Hot-film anemometer measurements have been carried out in a fully developed turbulent channel flow. An oil channel with a thick viscous sublayer was used, which permitted measurements very close to the wall. In the viscous sublayer betweeny+≃ 0·1 andy+= 5, the streamwise velocity fluctuations decreased at a higher rate than the mean velocity; in the regiony+[lsim ] 0·1, these fluctuations vanished at the same rate as the mean velocity.The streamwise velocity fluctuationsuobserved in the viscous sublayer and the fluctuations (∂u/∂y)0of the gradient at the wall were almost identical in form, but the fluctuations of the gradient at the wall were found to lag behind the velocity fluctuations with a lag time proportional to the distance from the wall. Probability density distributions of the streamwise velocity fluctuations were measured. Furthermore, measurements of the skewness and flatness factors made by Kreplin (1973) in the same flow channel are discussed. Measurements of the normal velocity fluctuationsvat the wall and of the instantaneous Reynolds stress −ρuvwere also made. Periods of quiescence in the − ρuvsignal were observed in the viscous sublayer as well as very active periods where ratios of peak to mean values as high as 30:1 occurred.

Bibliography

Eckelmann, H. (1974). The structure of the viscous sublayer and the adjacent wall region in a turbulent channel flow. Journal of Fluid Mechanics, 65(3), 439â459.

Authors 1

Helmut Eckelmann (first)

References 24 Referenced 318

Freymuth, P. 1967 Rev. Sci. Instrum. 38,677. (10.1063/1.1720798)
Py, B. 1973 Int. J. Heat Mass Transfer,16,129. (10.1016/0017-9310(73)90257-3)
Eckelmann, H. 1970 Mitteilungen aus dem MPI für Strömungsforschung und der AVA Göttingen (available in English).
Popovich, A. T. & Hummel, R. L. 1967 A.I.Ch.E. J. 13,854. (10.1002/aic.690130509)
Gupta, A. K. 1970 Ph.D. dissertation,University of Southern California.
Schraub, F. A. & Kline, S. J. 1965 Thermosci. Div., Mech. Engng Dept., Stanford University, Rep. MD-12.
Tennekes, H. & Lumley, J. L. 1972 A First Course in Turbulence. M.I.T. Press. (10.7551/mitpress/3014.001.0001)
Fortuna, G. & Hanratty, T. J. 1971 Int. J. Heat Mass Transfer,14,1349. (10.1016/0017-9310(71)90195-5)
Laufer, J. 1954 N.A.C.A. Tech. Rep. no. 1174.
Comte-bellot, G. 1965 Publ. Sci. Tech. du Ministère de l'Air, Paris, no. 419.
Bakewell, H. P. 1966 Ph.D. dissertation,Pennsylvania State University.
Klatt, F. 1973 DISA Inf. 14,25.
Corino, E. R. & Brodkey, R. S. 1969 J. Fluid Mech. 37,1. (10.1017/S0022112069000395)
Reichardt, H. 1938 Naturwissenschaften,24/25,404. (10.1007/BF01772950)
Obermeier, F. 1972 MPI für Strömungsforschung, Göttingen, Rep. no. 132/1972.
Kreplin, H.-P. 1973 MPI für Strömungsforschung, Göttingen, Rep. no. 2/1973.
Reichardt, H. 1971 MPI für Strömungsforschung, Göttingen, Rep. no. 6a/1971 (in English).
Wallace, J. M. , Eckelmann, H. & Brodkey, R. S. 1972 J. Fluid Mech. 54,39. (10.1017/S0022112072000515)
Willmarth, W. W. & Lu, S. S. 1972 J. Fluid Mech. 55,65. (10.1017/S002211207200165X)
Kim, H. T. , Kline, S. J. & Reynolds, W. C. 1971 J. Fluid Mech. 50,133. (10.1017/S0022112071002490)
Laufer, J. 1950 N.A.C.A. Tech. Note, no. 2123.
Eckelmann, H. 1972 DISA Inf. 13,16.
Gupta, A. K. & Kaplan, R. E. 1972 Phys. Fluids,15,981. (10.1063/1.1694060)
Kline, S. J. & Rundstadler, P. W. 1959 J. Appl. Mech., Trans. A.S.M.E. 26,166.

Dates

Type	When
Created	19 years, 5 months ago (March 29, 2006, 8:35 a.m.)
Deposited	4 years, 1 month ago (July 25, 2021, 3:04 a.m.)
Indexed	2 weeks ago (Aug. 19, 2025, 6:51 a.m.)
Issued	50 years, 11 months ago (Sept. 16, 1974)
Published	50 years, 11 months ago (Sept. 16, 1974)
Published Online	19 years, 5 months ago (March 29, 2006)
Published Print	50 years, 11 months ago (Sept. 16, 1974)

Funders 0

None

BibTeX

@article{Eckelmann_1974, title={The structure of the viscous sublayer and the adjacent wall region in a turbulent channel flow}, volume={65}, ISSN={1469-7645}, url={http://dx.doi.org/10.1017/s0022112074001479}, DOI={10.1017/s0022112074001479}, number={3}, journal={Journal of Fluid Mechanics}, publisher={Cambridge University Press (CUP)}, author={Eckelmann, Helmut}, year={1974}, month=sep, pages={439–459} }

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