Skip to main content
×
Home
    • Aa
    • Aa
  • Get access
    Check if you have access via personal or institutional login
  • Cited by 45
  • Cited by
    This article has been cited by the following publications. This list is generated based on data provided by CrossRef.

    Jackson, R. Brian Woods, Brian G. and Marcum, W.R. 2014. Boundary layer laminarization by convex curvature and acceleration. Nuclear Engineering and Design, Vol. 278, p. 693.


    Bauer, Bernard O. Walker, Ian J. Baas, Andreas C.W. Jackson, Derek W.T. Neuman, Cheryl McKenna Wiggs, Giles F.S. and Hesp, Patrick A. 2013. Coherent Flow Structures at Earth's Surface.


    Dave, N. Azih, C. and Yaras, M.I. 2013. A DNS study on the effects of convex streamwise curvature on coherent structures in a temporally-developing turbulent boundary layer with supercritical water. International Journal of Heat and Fluid Flow, Vol. 44, p. 635.


    Humble, R. A. Peltier, S. J. and Bowersox, R. D. W. 2012. Visualization of the structural response of a hypersonic turbulent boundary layer to convex curvature. Physics of Fluids, Vol. 24, Issue. 10, p. 106103.


    Khoshnevis, A B Hariri, S and Farzaneh-Gord, M 2009. The effect of convex wall curvature on the structure of the turbulent boundary layer. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, Vol. 223, Issue. 10, p. 2317.


    Pollard, A. Ozem, H.L.M. and Grandmaison, E.W. 2005. Turbulent, swirling flow over an axisymmetric, constant radius surface. Experimental Thermal and Fluid Science, Vol. 29, Issue. 4, p. 493.


    Mokhtarzadeh-Dehghan, M.R. and Yuan, Y.M. 2002. Measurements of turbulence quantities and bursting period in developing turbulent boundary layers on the concave and convex walls of a 90° square bend. Experimental Thermal and Fluid Science, Vol. 27, Issue. 1, p. 59.


    Gulec, K. Abdou, M.A. Moir, R.W. Morley, N.B. and Ying, A. 2000. Novel liquid blanket configurations and their hydrodynamic analyses for innovative confinement concepts. Fusion Engineering and Design, Vol. 49-50, p. 567.


    Holloway, A. G. L. and Tavoularis, S. 1998. A geometric explanation of the effects of mild streamline curvature on the turbulence anisotropy. Physics of Fluids, Vol. 10, Issue. 7, p. 1733.


    Patel, V.C. and Sotiropoulos, F. 1997. Longitudinal curvature effects in turbulent boundary layers. Progress in Aerospace Sciences, Vol. 33, Issue. 1-2, p. 1.


    Madhusudn, R Aswatha Narayana, P A Balabaskaran, V and Tulapurkara, E G 1994. Boundary layer studies over an S-blade. Fluid Dynamics Research, Vol. 14, Issue. 5, p. 241.


    Chiwanga, S.C. and Ramaprian, B.R. 1993. The effect of convex wall curvature on the large-scale structure of the turbulent boundary layer. Experimental Thermal and Fluid Science, Vol. 6, Issue. 2, p. 168.


    Holloway, A. G. L. and Tavoularis, S. 1992. The effects of curvature on sheared turbulence. Journal of Fluid Mechanics, Vol. 237, Issue. -1, p. 569.


    Baskaran, V. Smits, A. J. and Joubert, P. N. 1991. A turbulent flow over a curved hill. Part 2. Effects of streamline curvature and streamwise pressure gradient. Journal of Fluid Mechanics, Vol. 232, Issue. -1, p. 377.


    Floryan, J.M. 1991. On the görtler instability of boundary layers. Progress in Aerospace Sciences, Vol. 28, Issue. 3, p. 235.


    Stansby, P. K. and Smith, P. A. 1991. Viscous forces on a circular cylinder in orbital flow at low Keulegan—Carpenter numbers. Journal of Fluid Mechanics, Vol. 229, Issue. -1, p. 159.


    DEGANI, DAVID and SMITS, ALEXANDER J. 1990. Effect of short regions of surface curvature on compressible turbulent boundary layers. AIAA Journal, Vol. 28, Issue. 1, p. 113.


    Fernando, Emerick M. and Smits, Alexander J. 1990. A supersonic turbulent boundary layer in an adverse pressure gradient. Journal of Fluid Mechanics, Vol. 211, Issue. -1, p. 285.


    Ramjee, V and Neelakandan, D 1990. Curvature effects on the wake of an airfoil and other bodies. Fluid Dynamics Research, Vol. 6, Issue. 1, p. 1.


    DEFANI, DAVID and SMITS, ALEXANDER J. 1989. Response of a compressible, turbulent boundary layer to a short region of surface curvature. AIAA Journal, Vol. 27, Issue. 1, p. 23.


    ×

The structure of turbulent boundary layers along mildly curved surfaces

  • B. R. Ramaprian (a1) and B. G. Shivaprasad (a2)
  • DOI: http://dx.doi.org/10.1017/S0022112078000646
  • Published online: 01 April 2006
Abstract

This paper describes a detailed study of the structure of turbulence in boundary layers along mildly curved convex and concave surfaces. The surface curvature studied corresponds to δ/Rw = ± 0·01, δ being the boundary-layer thickness and Rw the radius of curvature of the wall, taken as positive for convex and negative for concave curvature. Measurements of turbulent energy balance, autocorrelations, auto- and cross-power spectra, amplitude probability distributions and conditional correlations are reported. It is observed that even mild curvature has very strong effects on the various aspects of the turbulent structure. For example, convex curvature suppresses the diffusion of turbulent energy away from the wall, reduces drastically the integral time scales and shifts the spectral distributions of turbulent energy and Reynolds shear stress towards high wavenumbers. Exactly opposite effects, though generally of a smaller magnitude, are produced by concave wall curvature. It is also found that curvature of either sign affects the v fluctuations more strongly than the u fluctuations and that curvature effects are more significant in the outer region of the boundary layer than in the region close to the wall. The data on the conditional correlations are used to study, in detail, the mechanism of turbulent transport in curved boundary layers.

Copyright
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? *
×
MathJax