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Spectral measurements of turbulent momentum transfer in fully developed pipe flow

Published online by Cambridge University Press:  29 March 2006

K. Bremhorst
Affiliation:
Department of Mechanical Engineering, University of Queensland, St Lucia
T. B. Walker
Affiliation:
Department of Mechanical Engineering, University of Queensland, St Lucia

Abstract

Measurements of the spectral components of turbulent momentum transfer for fully developed pipe flow are presented. The results indicate that near the wall (y+ < 15) two types of momentum transfer processes occur. A net positive transfer takes place in the higher frequency range of the energy-containing part of the turbulence spectrum whereas a net negative transfer returns low momentum to the wall region at the lower end of the spectrum. Examination of the turbulence at various y+ shows that the significant features of the turbulence spectra scale on frequency at any given Reynolds number, thus leading to an interpretation of the flow structure which is consistent with the hydrogen-bubble visualization data of Runstadler, Kline & Reynolds (1963). The results are consistent with a flow model in which disturbances extend from the sublayer to the core of the flow. Recent turbulent heat transfer measurements are also interpreted successfully by this model.

Type
Research Article
Copyright
© 1973 Cambridge University Press

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References

Bradshaw, P. 1967 Inactive motion and pressure fluctuations in turbulent boundary layers. J. Fluid Mech. 30, 241258.Google Scholar
Bremhorst, K. 1969 On the similarity of heat and momentum transfer in fully developed turbulent pipe flow. Ph.D. thesis, University of Queensland, St Lucia.
Bremhorst, K. 1972 The effect of wire length and separation on X-array hot wire anemometer measurements. Trans. I.E.E.E. Instrum. & Meas. IM 21, 244248.Google Scholar
Bremhorst, K. & Bullock, K. J. 1970 Spectral measurements of temperature and longitudinal velocity fluctuations in fully developed pipe flow. Int. J. Heat & Mass Transfer, 13, 13131329.Google Scholar
Bullock, K. J. & Bremhorst, K. 1969 Hot wire anemometer measurements in flows where direction of mean velocity changes during a traverse. Trans. I.E.E.E. Instrum. & Meas. IM 18, 163166.Google Scholar
Grass, A. J. 1971 Structural features of turbulent flow over smooth and rough boundaries. J. Fluid Mech. 50, 233255.Google Scholar
Kim, H. T., Kline, S. J. & Reynolds, W. C. 1971 The production of turbulence near a smooth wall in a turbulent boundary layer. J. Fluid Mech. 50, 133160.Google Scholar
Laufer, J. 1954 The structure of turbulence in fully developed pipe flow. N.A.C.A. Rep. no. 1174.Google Scholar
Lawn, C. J. 1971 The determination of the rate of dissipation in turbulent pipe flow. J. Fluid Mech. 48, 477505, 1971.Google Scholar
Morrison, W. R. B., Bullock, K. J. & Kronauer, R. E. 1971 Experimental evidence of waves in the sublayer. J. Fluid Mech. 47, 639656.Google Scholar
Narahari Rao, K., Narasimha, R. & Badri Narayanan, M. A. 1971 Bursts in turbulent shear flow. 4th Austr. Conf. Hydraul. & Fluid Mech. Monash University, Melbourne, pp. 7378.Google Scholar
Runstadler, P. W., Kline, S. J. & Reynolds, W. C. 1963 An experimental investigation of the flow structure of the turbulent boundary layer. Thermosci. Div. Dept. Mech. Engng., Stanford University Rep. MD-8.Google Scholar
Walker, T. B. & Bullock, K. J. 1972 Measurement of longitudinal and normal velocity fluctuations by sensing the temperature downstream of a hot wire. J. Phys. E, Sci. Instrum. 5, 11731178.Google Scholar