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Some Measurements in a Turbulent Circular Jet in the Presence of a Co-flowing Free Stream

Published online by Cambridge University Press:  07 June 2016

D J Smith  and
T Hughes
D J Smith
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
T Hughes
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
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Summary

Results obtained by hot-wire measurements in a turbulent jet are presented for the cases where the jet issues into a co-flowing free stream and, for comparison, where the jet issues into quiescent air. The results obtained in the former show some agreement with other workers, but they are more extensive, including measurements of microscales and macroscales. The results also suggest that the presence of a free stream reduces the rate of decay of the longitudinal turbulent component of velocity, which has the effect of increasing the skewness of the eddy structure.

Type
Research Article
Information
Aeronautical Quarterly , Volume 28 , Issue 3 , August 1977 , pp. 185 - 196
Copyright
Copyright © Royal Aeronautical Society. 1977

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References

1 Forstall, W Shapiro, A H Momentum and mass transfer in co-axial gas jets. Transactions, ASME; Journal of Applied Mechanics, Vol 72, p A399, 1950.Google Scholar
2 Maczynski, J F J A round jet in an ambient co-axial stream. Journal of Fluid Mechanics, Vol 13, p 597, 1962.Google Scholar
3 Reichardt, H Zur Problematik der turbulenten Strahlausbreitung in einer Grundströmung. Mitteilungen aus dem Max-Planck-Institut für Strömungs-Forschung, No 35, 1965.Google Scholar
4 Maczynski, J F J Ein Vergleich der experimentellen und theoretischen Ergebnisse für den runden turbulenten Flüssigkeitsstrahl in einer Aussenströmung. Zeitschrift für Flugwissenschaften, Vol 19,p 113, 1971.Google Scholar
5 Antonia, R A Bilger, R W An experimental investigation of an axisymmetrical jet in a co-flowing air stream. Journal of Fluid Mechanics, Vol 61, p 805, 1973.Google Scholar
6 Biringen, S An experimental study of a turbulent axisymmetric jet issuing into a co-flowing air-stream. Von Kármán Institute (Rhode St Genèse) VKI TN 110, 1975.Google Scholar
7 Wygnanski, I Fiedler, H Some measurements in the self-preserving jet. Journal of Fluid Mechanics, Vol 38, p 577, 1969.Google Scholar
8 Laufer, J The structure of turbulence in fully developed pipe flow. NACA Report 1174, 1954.Google Scholar
9 Reichardt, H Turbulente Strahlausbreitung in gleichgerichteter Strömung. Forschung auf dem Gebiete des Ingenieurwesens, Vol 30, p 113–134, 1964.Google Scholar
10 Townsend, A A Entrainment and the structure of turbulent flow. Journal of Fluid Mechanics, Vol 41, p 13, 1970.Google Scholar
11 Taylor, G I Statistical theory of turbulence. Proc Roy Soc A, Vol 151, pp 421-44, 1935.Google Scholar
12 Hinze, J O Turbulence, p 153, McGraw-Hill, 1959.Google Scholar
13 Lin, C C (Editor) High-Speed Aerodynamics and Jet Propulsion, Vol 5, Oxford University Press, 1959.Google Scholar
14 Trentacoste, N P Sforza, P M Studies in homogeneous and non-homogeneous free turbulent jets. AIAA Paper 70-130, 1970.Google Scholar
15 Fisher, M J Davies, P A O L Correlation measurements in a non-frozen pattern of turbulence. Journal of Fluid Mechanics, Vol 18, p 97, 1963.Google Scholar
16 Morris, P J Turbulence measurements in subsonic and supersonic axisymmetric jets in a moving stream. AIAA Paper 76-25, 1976.Google Scholar