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On the organized motion of a turbulent plane jet

Published online by Cambridge University Press:  20 April 2006

R. A. Antonia
Affiliation:
Department of Mechanical Engineering, University of Newcastle, N.S.W. 2308, Australia
L. W. B. Browne
Affiliation:
Department of Mechanical Engineering, University of Newcastle, N.S.W. 2308, Australia
S. Rajagopalan
Affiliation:
Department of Mechanical Engineering, University of Newcastle, N.S.W. 2308, Australia
A. J. Chambers
Affiliation:
Department of Mechanical Engineering, University of Newcastle, N.S.W. 2308, Australia

Abstract

Measurements of space–time correlations of longitudinal and normal velocity fluctuations and of temperature fluctuations support the existence of counter-rotating spanwise structures appearing alternately on opposite sides of the jet centreline in the self-preserving region of the flow. The frequency of these structures closely satisfies self-preservation. The asymmetric arrangement of the structures is first observed downstream of the position where the jet mixing layers nominally merge but upstream of the onset of self-preservation. Closer to the jet exit, the space–time correlations indicate the existence of spanwise structures that are symmetrical about the centreline.

Type
Research Article
Copyright
© 1983 Cambridge University Press

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References

Antonia, R. A., Browne, L. W. B., Chambers, A. J. & Rajagopalan, S. 1983 Budget of the temperature variance in a turbulent plant jet Int. J. Heat Mass Transfer. 26, 4148.Google Scholar
Beavers, G. S. & Wilson, T. A. 1970 Vortex growth in jets J. Fluid Mech. 44, 97112.Google Scholar
Bradbury, L. J. S. 1965 The structure of a self-preserving turbulent plane jet J. Fluid Mech., 23, 3164.Google Scholar
Brown, G. B. 1935 On vortex motion in gaseous jets and the origin of their sensitivity to sound Proc. Phys. Soc. 47, 703732.Google Scholar
Cervantes, J. G. 1981 The flapping motion of a turbulent plane jet: a workable relationship to wave-guide theory. In Unsteady Turbulent Shear Flows (ed. R. Michel, J. Cousteix & R. Houdeville), pp. 412424. Springer.
Cervantes De Gortari, J. & Goldschmidt, V. W. 1981 The apparent flapping motion of a turbulent plane jet - further experimental results. Trans. ASME I: J. Fluids Engng 103, 119126.Google Scholar
Crow, S. C. & Champagne, F. H. 1971 Orderly structure in jet turbulence J. Fluid Mech. 48, 547591.Google Scholar
Davies, P. O. A. L. & Mercer, C. A. 1973 Phase velocity measurements using the cross power spectrum. Inst. of Measurement & Control Conf. Proc. pp. 3745.Google Scholar
Everitt, K. W. & Robins, A. G. 1978 The development and structure of turbulent plane jets J. Fluid Mech. 88, 563583.Google Scholar
Goldschmidt, V. W. & Bradshaw, P. 1973 Flapping of a plane jet Phys. Fluids 16, 354355.Google Scholar
Goldschmidt, V. W., Young, M. F. & Ott, E. S. 1981 Turbulent convective velocities (broadband and wavenumber dependent) in a plane jet J. Fluid Mech. 105, 327345.Google Scholar
Grant, H. L. 1958 The large eddies of turbulent motion J. Fluid Mech. 4, 149190.Google Scholar
Gutmark, E. & Wygnanski, I. 1976 The planar turbulent jet J. Fluid Mech. 73, 465495.Google Scholar
Keffer, J. F. 1979 Measurement of spanwise distribution of turbulent structures. In Proc. Dynamic Flow Conf. 1978 on Dynamic Measurements in Unsteady Flows, Marseille-Baltimore (ed. L. S. G. Kovasznay, A. Favre, B. Buchhave, L. Fulachier & B. W. Hansen), pp. 231248.
Kotsovinos, N. E. 1975 A study of the entrainment and turbulence in a plane buoyant jet. Ph.D. thesis, California Institute of Technology.
Krothapalli, A., Baganoff, D. & Karamcheti, K. 1981 On the mixing of a rectangular jet J. Fluid Mech. 107, 201220.Google Scholar
Lau, J. C., Morris, P. J. & Fisher, M. J. 1979 Measurements in subsonic and supersonic free jets using a laser velocimeter J. Fluid Mech. 93, 127.Google Scholar
List, E. J. 1982 Turbulent jets and plumes Ann. Rev. Fluid Mech. 14, 189212.Google Scholar
Moallemi, M. K. & Goldschmidt, V. W. 1981 Smoke wire visualization of the external region of a two-dimensional jet. In Proc. 7th Biennial Symp. on Turbulence, University of Missouri-Rolla, pp. 42-142-10.
Moum, J. N., Kawall, J. G. & Keffer, J. F. 1979 Structural features of the plane turbulent jet Phys. Fluids 22, 12401244.Google Scholar
Mumford, J. C. 1982 The structure of the large eddies in fully developed turbulent shear flows. Part 1. The plane jet J. Fluid Mech. 118, 241268.Google Scholar
Oler, J. W. 1980 Coherent structures in the similarity region of a two-dimensional turbulent jet: a vortex street. Ph.D. thesis, Purdue University.
Oler, J. W. & Goldschmidt, V. W. 1981 Coherent structures in the similarity region of two-dimensional turbulent jets. In Proc. 3rd Symp. on Turbulent Shear Flows, University of California at Davis, pp. 11.111.6.
Oler, J. W. & Goldschmidt, V. W. 1982 A vortex-street model of the flow in the similarity region of a two-dimensional free turbulent jet J. Fluid Mech. 123, 523535.Google Scholar
Oseberg, O. K. & Kline, S. J. 1971 The near field of a plane jet with several initial conditions. Report MD-28, Dept Mech. Engng, Stanford University.Google Scholar
Papailiou, D. D. & Lykoudis, P. S. 1974 Turbulent vortex streets and the entrainment mechanism of the turbulent wake J. Fluid Mech. 62, 1131.Google Scholar
Rockwell, D. O. & Niccolls, W. O. 1972 Natural breakdown of planar jets. Trans ASME D: J. Basic Engng 94, 720730.Google Scholar
Sato, H. 1960 The stability and transition of a two-dimensional jet J. Fluid Mech. 7, 5380.Google Scholar
Sreenivasan, K. R., Britz, D. & Antonia, R. A. 1977 On the accuracy of determining high-order moments of turbulent fluctuations. Rep. T.N. - FM10, Dept Mech Engng, University of Newcastle, N. S. W.Google Scholar
Townsend, A. A. 1976 The Structure of Turbulent Shear Flow, 2nd edn. Cambridge University Press.
Townsend, A. A. 1979 Flow patterns of large eddies in a wake and in a boundary layer J. Fluid Mech. 95, 515537.Google Scholar
Uberoi, M. S. & Singh, P. I. 1975 Turbulent mixing in a two-dimensional jet Phys. Fluids 18, 764769.Google Scholar
Weir, A. D. & Bradshaw, P. 1975 Resonance and other oscillations in the initial region of a plane turbulent jet. I.C. Aero Rep. 7507, Dept of Aeronautics, Imperial College, London.Google Scholar
Wygnanski, I. & Gutmark, E. 1971 Lateral motion of the two-dimensional jet boundaries Phys. Fluids 14, 13091311.Google Scholar
Wygnanski, I., Oster, D., Fiedler, H. & Dziomba, B. 1979 On the perseverance of a quasi-two-dimensional eddy-structure in a turbulent mixing layer J. Fluid Mech. 93, 325335.Google Scholar