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Intermittency in a thermal mixing layer

Published online by Cambridge University Press:  11 April 2006

J. F. Keffer ,
G. J. Olsen  and
J. G. Kawall
J. F. Keffer
Affiliation:
Department of Mechanical Engineering, University of Toronto, Canada M5S 1A4
G. J. Olsen
Affiliation:
Department of Mechanical Engineering, University of Toronto, Canada M5S 1A4
J. G. Kawall
Affiliation:
Department of Mechanical Engineering, University of Toronto, Canada M5S 1A4
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Abstract

An investigation of the existence of purely thermal intermittency has been undertaken for the flow produced by a step change in temperature in a decaying homogeneous turbulent field. The results show that a thermal interface can be defined and that it is a random function of space and time, having gross characteristics similar to the turbulent interface in a free shear flow. A technique for identifying the hot and cold regions of the fluid in a systematic way was developed and this permitted conditional averages of the mean and fluctuating temperature to be formed.

Information

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 79 , Issue 3 , 9 March 1977 , pp. 595 - 607
Copyright
© 1977 Cambridge University Press

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References

Alexopoulos, C. C. & Keffer, J. F. 1971 Phys. Fluids, 14, 216.
Antonia, R. A. & Bilger, R. W. 1974 Charles Kolling Res. Lab., Sydney, Tech. Note, F-66.
Bradshaw, P. & Murlis, J. 1973 Imp. College Aero. Tech. Note, no. 73–108.
Corrsin, S. 1943 N.A.C.A. Wartime Rep. W-94.
Corrsin, S. & Kistler, A. L. 1955 N.A.C.A. Rep. no. 1244.
Davies, A. E., Keffer, J. F. & Baines, W. D. 1975 Phys. Fluids, 18, 770.
Fiedler, H. 1974 Adv. in Geophys. A 18, 93.
Gibson, C. H. & Schwarz, W. H. 1963 J. Fluid Mech. 16, 365.
Hedley, T. B. & Keffer, J. F. 1974a J. Fluid Mech. 64, 645.
Hedley, T. B. & Keffer, J. F. 1974b J. Fluid Mech. 64, 625.
Kawall, J. G. & Keffer, J. F. 1977 To be published.
LaRue, J. C. 1974 Phys. Fluids, 17, 1513.
Mills, R. R. & Corrsin, S. 1959 N.A.S.A. Memo. 5–5-59W.
Watt, W. E. 1967 Ph.D. dissertation, University of Toronto.
Watt, W. E. & Baines, W. D. 1973 J. Hydraul. Res. 11, 157.
Wiskind, H. K. 1962 J. Geophys. Res. 67, 3033.