Skip to main content
    • Aa
    • Aa

LDA measurements in the near-wall region of a turbulent pipe flow

  • F. Durst (a1), J. Jovanović (a1) and J. Sender (a1)

This paper presents laser-Doppler measurements of the mean velocity and statistical moments of turbulent velocity fluctuations in the near-wall region of a fully developed pipe flow at low Reynolds numbers. A refractive-index-matched fluid was used in a Duran-glass test section to permit access to the near-wall region without distortion of the laser beams. All measurements were corrected for the influence of the finite size of measuring control volume. Measurements of long-time statistical averages of all three fluctuating velocity components in the near-wall region are presented. It is shown that the turbulence intensities in the wall region do not scale with inner variables. However, the limiting behaviour of the intensity components very close to the wall show only small variations with the Reynolds number. Measurements of higher-order statistical moments, the skewness and flatness factors, of axial and tangential velocity components confirm the limiting behaviour of these quantities obtained from direct numerical simulations of turbulent channel flow. The comparison of measured data with those obtained from direct numerical simulations reveals that noticeable discrepancies exist between them only with regard to the flatness factor of the radial velocity component near the wall. The measured v’ flatness factor does not show the steep rise close to the wall indicated by numerical simulations. Analysis of the measured data in the near-wall region reveals significant discrepancies between the present LDA measurements and experimental results obtained using the hot-wire anemometry.

Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

Alfredsson, P. H., Johansson, A. V., Haritonidis, J. H. & Eckelmann, H.1988The fluctuating wall-shear stress and the velocity field in the viscous sublayer. Phys. Fluids31, 10261033.

Antonia, R. A., Teitel, M., Kim, J. & Browne, L. W. B. 1992 Low-Reynolds-number effects in a fully developed turbulent channel flow. J. Fluid Mech. 236, 579605.

Bakewell, H. P. & Lumley, J.1967Viscous sublayer and adjacent wall region in turbulent pipe flow. Phys. Fluids10, 18801889.

Eckelmann, H. 1974 The structure of the viscous sublayer and the adjacent wall region in a turbulent channel flow. J. Fluid Mech. 65, 439459.

Goldstein, R. J. & Adrian, R. J.1971Measurements of fluid velocity and gradient using laser-Doppler techniques. Rev. Sci. Instrum.42, 1317.

Jovanović, J., Durst, F. & Johansson, T. G.1993Statistical analysis of the dynamic equations for higher-order moments in turbulent wall bounded flows. Phys. Fluids A 5, 28862900.

Kim, J., Moin, P. & Moser, R. 1987 Turbulence statistics in a fully developed channel flow at low Reynolds number. J. Fluid Mech. 177, 133166.

Kreplin, H. & Eckelmann, H.1979Behaviour of the three fluctuating velocity components in the wall region. Phys. Fluids22, 12331239.

Lyons, S. L., Hanratty, T. J. & McLaughlin, J.1991Large-scale computer simulation of fully developed turbulent channel flow with heat transfer. Intl J. Numer. Methods Fluids13, 9991928.

Niederschulte, N. A., Adrian, R. J. & Hanratty, T. J.1990Measurements of turbulent flow in a channel at low Reynolds numbers. Exps. Fluids9, 222230.

Perry, A. E. Abell, C. J. 1975 Scaling laws for pipe turbulence. J. Fluid Mech. 67, 257271.

Purtell, L. P., Klebanoff, P. S. & Buckley, F. T.1981Turbulent boundary layer at low Reynolds number. Phys. Fluids24, 802811.

Walker, D. T. & Tiederman, W. G. 1990 Turbulent structure in a channel flow with polymer injection at the wall. J. Fluid Mech. 218, 377403.

Wei, T. & Willmarth, W.W. 1989 Reynolds-number effects on the structure of a turbulent channel flow. J. Fluid Mech. 204, 5795.

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Fluid Mechanics
  • ISSN: 0022-1120
  • EISSN: 1469-7645
  • URL: /core/journals/journal-of-fluid-mechanics
Please enter your name
Please enter a valid email address
Who would you like to send this to? *


Full text views

Total number of HTML views: 0
Total number of PDF views: 40 *
Loading metrics...

Abstract views

Total abstract views: 249 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 24th May 2017. This data will be updated every 24 hours.