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Notes on approximations for turbulent flows with large temperature differences

Published online by Cambridge University Press:  28 March 2006

D. J. Tritton
D. J. Tritton
Affiliation:
Department of Aeronautical Engineering, Indian Institute of Science, Bangalore
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Abstract

  1. The diffusion terms in the mean velocity and temperature equations of turbulent flow are analysed to decide when variations of fluid properties can produce appreciable errors.

  2. A theoretical demonstration is given that in the mean-flow continuity equation for a gas the error in assuming constant density is small if the flow is turbulent, even when the temperature variations are large.

  3. Separate discussion is given of the case of local heat sources in turbulence, as large errors can occur there.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 11 , Issue 3 , November 1961 , pp. 440 - 446
Copyright
© 1961 Cambridge University Press

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References

Corrsin, S. & Uberoi, M. S. 1951 Nat. Adv. Comm. Aero. Rep. no. 1040.
Ellison, T. H. 1957 J. Fluid Mech. 2, 456.
Hinze, J. O. 1959 Turbulence. New York: McGraw-Hill.