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An experimental study of turbulent convective heat transfer from a flat plate

Published online by Cambridge University Press:  11 April 2006

A. E. Perry
Affiliation:
Department of Mechanical Engineering, University of Melbourne, Parkville, Victoria 3052, Australia
P. H. Hoffmann
Affiliation:
Department of Mechanical Engineering, University of Melbourne, Parkville, Victoria 3052, Australia

Abstract

A turbulent boundary layer developing on a smooth heated uniform-temperature plate in a zero pressure gradient was set up. The origins of the layers were matched to remove the effect of an In heated starting length. Similarity proposals were tested. The mean flow field followed the usual law of the wall and defect law for both temperature and velocity. Broad-band measurements of stream wise velocity and temperature fluctuations were made, and wall similarity and Townsend's self-preserving flow similarity were found to be applicable, at least after a sufficient flow development.

Some initial attempts to arrive at a comparison between heat and momentum transport are presented. The results include conditionally sampled measurements of instantaneous heat and momentum fluxes and correlations between these two quantities. The fluxes were divided into quadrants. Conditional probabilities and weighted joint probability density functions were measured to determine whether there was a similarity in behaviour of these two fluxes. The concept of ‘hole size’ developed for momentum flux was extended to heat flux and events corresponding to bursts and sweeps in the momentum flux were found to be accompanied by corresponding events in the heat flux.

Type
Research Article
Copyright
© 1976 Cambridge University Press

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References

Bell, J. B. 1966 Heat transfer to turbulent boundary layers in pressure gradients M. Eng. Sc. thesis, University of Melbourne.
Brundrett, E., Baines, W. D., Peregrym, J. & Burroughs, P. R. 1965 AGARD ograph, no. 97, pert 2.
Coles, D. 1956 J. Fluid Mech. 1, 191.
Coles, D. & Hirst, E. A. 1968 Proc. Afosr-IFP-Stanford Conf. Comp. Turbulent Boundary Layers, vol. 2.
Corino, E. R. & Brodkey, R. S. 1969 J. Fluid Mech. 37, 1.
Kader, B. A. & Yaglom, A. M. 1972 Int. J. Heat Mass Tramfer, 15, 2329.
Kestin, J. & Richardson, P. D. 1963 Int. J. Heat Mass Transfer, 6, 147.
KIM, H. T., Kline, S. J. & Reynolds, W. C. 1971 J. Fluid Mech. 50, 133.
Kline, S. J., Reynolds, W. C., Schraub, I. A. & Runstadler, P. W. 1967 J. Fluid Mech. 30, 741.
Laufer, J. & Narayanan, M. A. Badri 1970 Phys. Fluids, 14, 182.
Lu, S. S. & Willmarth, W. W. 1972 Univ. Michigan. Tech. Rep. no. 021490-2-T.
Morrison, G. L., Perry, A. E. & Samuel, A. E. 1972 J. Fluid Mech. 52, 465.
Perry, A. E. & Abell, C. J. 1975 J. Pluid Mech. 67, 257.
Perry, A. E., Bell, J. B. & Joubert, P. N. 1966 J. Fluid Mech. 25, 299.
Perry, A. E. & Morrison, G. L. 1971a J. Fluid Mech. 47, 577.
Perry, A. E. & Morrison, G. L. 1971b J. Fluid Mech. 47, 765.
RAO, K. N., Narasimha, R. & Narayanan, M. A. Badri 1971 J. Fluid Meoh. 48, 339.
Reynolds, O. 1874 Proc. Manchester Lit. Phil. Soc. 14, 7.
Reynolds, W. C., Kays, W. M. & Kline, S. J. 1958 N.A.S.A. Memo. no. 12-1-58W.
Rotta, J. C. 1962 Prog. Aero. Sci. 2, 5.
Squire, H. B. 1953 In Modern Developments in Fluid Dynamics, vol. 2. High Speed Flow, chap. 14. Oxford: Clerendon Press.
Townsend, A. A. 1956 The Structure of Turbulent Shear Flow. Cambridge University Press.
Willmarth, W. W. & Lu, S. S. 1972 AGARD Conf. Proc. no. CP-93, p. 3-1.