Hostname: page-component-8448b6f56d-gtxcr Total loading time: 0 Render date: 2024-04-25T05:14:12.068Z Has data issue: false hasContentIssue false
  • English
  • Français

Near-wall structure of a turbulent boundary layer with riblets

Published online by Cambridge University Press:  26 April 2006

Kwing-So Choi
Kwing-So Choi
Affiliation:
British Maritime Technology, 1 Waldegrave Road, Teddington, Middlesex TW11 8LZ, UK
Get access Rights & Permissions [Opens in a new window]

Abstract

A detailed wind tunnel study has been carried out on the near-wall turbulence structure over smooth and riblet wall surfaces under zero pressure gradient. Time-average quantities as ‘well as conditionally sampled profiles were obtained using hotwire/film anemometry, along with a simultaneous flow visualization using the smoke-wire technique and a sheet of laser light. The experimental results indicated a significant change of the structure in the turbulent boundary layer near the riblet surface. The change was confined within a small volume of the flow close to the wall surface. A conceptual model for the sequence of the bursts was then proposed based on an extensive study of the flow visualization, and was supported by the results of conditionally sampled velocity fields. A possible mechanism of turbulent drag reduction by riblets is discussed.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 208 , November 1989 , pp. 417 - 458
Copyright
© 1989 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Antonia, R. A. 1981 Conditional sampling in turbulence measurement. Ann. Rev. Fluid Mech. 13. 131.Google Scholar
Bacher, E. V. & Smith, C. R. 1985 A combined visualisation—anemometry study of the turbulent drag reducing mechanisms of triangular micro-groove surface modifications. AIAA Paper 85–0548.Google Scholar
Bandyopadhyay, P. R. 1986 Review - Mean flow in turbulent boundary layers disturbed to alter skin friction. Trans. ASME I: J. Fluids Engng 108, 127.Google Scholar
Bechert, D. W., Bartenwerfer, M., Hoppe, G. & Reif, W.-E. 1986 Drag reduction mechanisms derived from shark skin. Paper 86-1.8.3. 15th Congress, International Council of the Aeronautical Sciences, London.Google Scholar
Bechert, D. W., Hoppe, G. & Reif, W. E. 1985 On the drag reduction of the shark skin. AIAA Paper 85-0546.Google Scholar
Beeler, G. B. 1986 Turbulent boundary layer wall pressure fluctuations downstream of a tandem LEBU. AIAA J. 24, 689.Google Scholar
Blackwelder, R. F. & Chang, S.-I. 1986 Length scales and correlations in a LEBU modified turbulent boundary layer. AIAA Paper 86-0287.Google Scholar
Blackwelder, R. F. & Kaplan, R. E. 1976 On the wall structure of the turbulent boundary layer. J. Fluid Mech. 76, 89.Google Scholar
Brown, G. L. & Roshko, A. 1974 On density effects and large structure in turbulent mixing layers. J. Fluid Mech. 64, 775.Google Scholar
Choi, K.-S. 1984 A survey of the turbulent drag reduction using passive devices. NMI Rep. R-193. NMI Ltd, Feltham, Middlesex, UK.
Choi, K.-S. 1985 Near-wall turbulence structure on a riblet wall. BMT Rep. BMT Ltd, Feltham. Middlesex, UK.
Choi, K.-S. 1986a A new look at the near-wall turbulence structure. In Advances in Turbulence (ed. J. Mathieu & G. Comte-Bellot). Springer.
Choi, K.-S. 1986b Drag reduction by manipulation of near-wall turbulence structure. Proc. European Meeting on Turbulent Drag Reduction, Lausanne (see also Saville et al. 1988).Google Scholar
Choi, K.-S. 1987a The wall pressure fluctuations of modified turbulent boundary layer with riblets. In Turbulence Management and Relaminarisation (ed. H. W. Liepman & R. Narasimha). Springer.
Choi, K.-S. 1987b On physical mechanisms of turbulent drag reduction using riblets. In Transport Phenomena in Turbulent Flows (ed. M. Hirata & N. Kasagi). Hemisphere.
Choi, K.-S. & Johnson, R. 1989 Effects of pressure gradients on the near-wall turbulence structure with riblets. To be published in BMT Rep. BMT Ltd, Teddington, Middlesex, UK.
Choi, K.-S., Pearcey, H. H. & Savill, A. M. 1987 Test of drag reducing riblets on a one-third scale racing yacht. Proc. Int. Conf. on Turbulent Drag Reduction by Passive Means, London.Google Scholar
Collis, D. C. & Williams, M. J. 1959 Two-dimensional convection from heated wires at low Reynolds numbers. J. Fluid Mech. 6, 357.Google Scholar
Coustols, E. & Cousteix, J. 1986 Reduction of turbulent skin friction: turbulence moderators. Rech. Aerosp. 1986-2, p. 63.Google Scholar
Coustols, E. & Cousteix, J. 1988 Turbulent boundary layer manipulation in zero pressure gradient. 16th Congress of the Int. Council of the Aeronautical Sciences, Jerusalem.Google Scholar
Dinkelacker, A., Nitschke-Kowsky, P. & Reif, W.-E. 1987 On the possibility of drag reduction with the help of longitudinal ridges in the walls. In Turbulence Management and Relaminarisation (ed. H. W. Liepman & R. Narasimha). Springer.
Djenidi, L., Liandrat, J., Anselmet, F. & Fulachier, L. 1988 About the mechanism involved in a turbulent boundary layer over riblets. Proc. Second European Turbulence Conf., Berlin.Google Scholar
Furuya, M. & Fujita, H. 1966 Turbulent boundary layer over rough gauze surfaces. Trans. Japan Soc. Mech. Engrs 32, 725 (in Japanese).Google Scholar
Gallagher, J. A. & Thomas, A. S. W. 1984 Turbulent boundary layer characteristics over streamwise grooves. AIAA Paper 84-2185.Google Scholar
Guezennec, Y. G. & Nagib, H. M. 1985 Documentation of mechanisms leading to net drag reduction in manipulated turbulent boundary layers. AIAA Paper 85-0519.Google Scholar
Hatziavramidis, D. T. & Hanratty, T. J. 1979 The presentation of the viscous wall region by a regular eddy pattern. J. Fluid Mech. 95, 655.Google Scholar
Head, M. R. & Bandyopadhyay, P. 1981 New aspects of turbulent boundary layer structure. J. Fluid Mech. 107, 297.Google Scholar
Hooshmand, D., Youngs, R. & Wallace, J. M. 1983 An experimental study of changes in the structure of a turbulent boundary layer due to surface geometry changes. AIAA Paper 83-0230.Google Scholar
Johansen, J. B. & Smith, C. R. 1983 The effect of cylindrical surface modification on turbulent boundary layers. Rep. FM-3. Dept. of Mechanical Engineering and Mechanics, Lehigh University, Pennsylvania.
Johansson, A. V. & Alfredsson, P. H. 1985 Recent developments of drag reduction methods for ships. Proc. Second Int. Symp. on Ship Viscous Resistance, Sweden.Google Scholar
Klebanoff, P. S. 1955 Characteristics of turbulence in a boundary layer with zero pressure gradient. NACA Rep. 1247.Google Scholar
Kline, S. J., Reynolds, W. C., Schraub, F. A. & Runstadler, P. W. 1967 The structure of turbulent boundary layers. J. Fluid Mech. 30, 741.Google Scholar
Lumley, J. L. 1973 Drag reduction in turbulent flow by polymer additives. J. Polymer Sci. D: Macromol. Rev. 7, 263.Google Scholar
McLean, J. D., George-Falvy, D. N. & Sullivan, P. P. 1987 Flight-test of turbulent skin-friction reduction by riblets. Proc. Intl Conf. Turbulent Drag Reduction by Passive Means, London.Google Scholar
Nguyen, V. D., Savill, A. M. & Westphal, R. V. 1987 Skin friction measurements following manipulation of a turbulent boundary layer. AIAA J. 25, 498.Google Scholar
Nieuwstadt, F. T. M. Van Dam, W., Leijdens, H. & Pulles, C. 1986 Some turbulence measurements above a grooved wall. Proc. European Drag Reduction Conf., Lausanne (see also Savill et al. 1988).Google Scholar
Patel, V. C. 1965 Calibration of the Preston tube and limitations of its use in pressure gradients. J. Fluid Mech. 23, 185.Google Scholar
Pulles, C. J. A. 1988 Drag reduction of turbulent boundary layers by means of grooved surfaces. Ph.D. thesis, Technical University of Eindhoven.
Reidy, L. W. 1987 Flat plate drag reduction in a water tunnel using riblets. Naval Ocean Systems Center TR 1169.Google Scholar
Reidy, L. W. & Anderson, G. W. 1988 Drag reduction for external and internal boundary layers using riblets and polymers. AIAA Paper 88-0138.Google Scholar
Sandborn, V. A. 1981 Control of surface shear stress fluctuations in turbulent boundary layers. Rep. CER 80-81-VAS46. Dept. of Civil Engng, Colorado State University.
Savill, A. M. 1987 Effect on turbulent boundary layer structure of longitudinal riblets alone and in combination with outer devices. In Flow Visualisation IV (ed. L. Charnay). Hemisphere.
Savill, A. M., Truong, T. V. & Ryhming, I. L. 1988 Turbulent drag reduction by passive means: a review and report on the first European drag reduction meeting. J. Méc. Theor. Appl. 7, 353.Google Scholar
Sawyer, W. G. & Winter, K. G. 1986 The effect of turbulent skin friction of surfaces with streamwise grooves. Proc. European Meeting on Turbulent Drag Reduction, Lausanne (see also Savill et al. 1988).Google Scholar
Smith, C. R. & Metzler, S. P. 1983 The characteristics of low-speed streaks in the near-wall region of a turbulent boundary layer. J. Fluid Mech. 129, 27.Google Scholar
Squire, L. C. & Savill, A. M. 1987 Some experiences of riblets at transonic speeds. Proc. Intl Conf. Turbulent Drag Reduction by Passive Means, London.Google Scholar
Virk, P. S. 1975 Drag reduction fundamentals. AIChE J. 21, 625.Google Scholar
Wallace, J. M. 1982 On the structure of bounded turbulent shear flow: a personal view. In Developments in Theoretical and Applied Mechanics, XI (ed. T. J. Chung & G. R. Karr). University of Alabama, Huntsville, Alabama.
Walsh, M. J. 1980 Drag characteristics of V-groove and transverse curvature riblets. In Viscous Drag Reduction (ed. G. R. Hough). American Institute of Aeronautics and Astronautics.
Walsh, M. J. 1982 Turbulent boundary layer drag reduction using riblets. AIAA Paper 82-0169.Google Scholar
Walsh, M. J. & Lindeman, A. M. 1984 Optimisation and application of riblets for turbulent drag reduction. AIAA Paper 84-0347.Google Scholar
Walsh, M. J. & Weinstein, L. M. 1978 Drag and heat transfer with small longitudinal fins. AIAA Paper 78-1161.Google Scholar
Wilkinson, S. P., Anders, J. B., Lazos, B. S. & Bushnell, D. M. 1987 Turbulent drag reduction research at NASA Langley - progress and plans. Proc. Intl Conf. on Turbulent Drag Reduction by Passive Means, London.Google Scholar