Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-17T23:23:16.819Z Has data issue: false hasContentIssue false
  • English
  • Français

Momentum and heat transport in the turbulent intermediate wake of a circular cylinder

Published online by Cambridge University Press:  26 April 2006

M. Matsumura  and
R. A. Antonia
M. Matsumura
Affiliation:
Department of Applied Mechanical Engineering, Kitami Institute of Technology, Kitami, Hokkaido, 090, Japan
R. A. Antonia
Affiliation:
Department of Mechanical Engineering, University of Newcastle, NSW, 2308, Australia
Get access Rights & Permissions [Opens in a new window]

Abstract

Hot-wire anemometry has been used in the intermediate wake (x/d= 10 to 40) of a slightly heated circular cylinder in order to quantify the contribution from the coherent motion to various conventionally averaged quantities, in particular the average momentum and heat fluxes. The overall contribution to the lateral heat flux is always greater than that to the Reynolds shear stress, indicating that the turbulent Kármán vortex street transports heat more effectively than momentum. The difference in these contributions is reflected in the topologies of the velocity and temperature fields. There is significant streamwise evolution of these topologies throughout the intermediate wake. At x/d = 10, the net heat transport associated with the vortical motion occurs in the downstream region of each vortex. At other downstream stations, the net heat transport is equally distributed between the upstream and downstream regions of individual vortices.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 250 , May 1993 , pp. 651 - 668
Copyright
© 1993 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. 1991 Organization in a turbulent near-wake. Fluid Dyn. Res. 7, 139–149.Google Scholar
Antonia, R. A. & Browne, L. W. B. 1986 Heat transport in a turbulent plane wake. Intl J. Heat Mass Transfer 29, 1585–1592.Google Scholar
Antonia, R. A., Browne, L. W. B., Bisset, D. K. & Fulachier, L. 1987 A description of the organized motion in the turbulent far-wake of a cylinder at low Reynolds number. J. Fluid Mech. 184, 423–444.Google Scholar
Boisson, H. C, Chassaing, P. & Ha Minh, H. 1983 Conditional analysis of intermittency in the near wake of a circular cylinder. Phys. Fluids 26, 653–658.Google Scholar
Cantwell, B. & Coles, D. 1983 An experimental study of entrainment and transport in the turbulent near wake of a circular cylinder. J. Fluid Mech. 136, 321–374.Google Scholar
Cimbala, J. M., Nagib, H. M. & Roshko, A. 1988 Large structure in the far wakes of two-dimensional bluff bodies. J. Fluid Mech. 190, 265–298.Google Scholar
Fabris, G. 1979 Turbulent temperature and thermal flux characteristics in the wake of a cylinder. In Turbulent Shear Flows 1 (ed. F. Durst, B. E. Launder, F. W. Schmidt & J. H. Whitelaw), pp. 55–70. Springer.
Ferré, J. A. & Giralt, F. 1989 Some topological features of the entrainment process in a heated turbulent wake. J. Fluid Mech. 198, 65–78.Google Scholar
Ferré, J. A., Mumford, J. C., Savill, A. M. & Giralt, F. 1990 Three-dimensional large-eddy motions and fine-scale activity in a plane turbulent wake. J. Fluid Mech. 210, 371–414.Google Scholar
Hayakawa, M. & Hussain, F. 1989 Three-dimensionality of organized structures in a plane turbulent wake. J. Fluid Mech. 206, 375–404.Google Scholar
Hussain, A. K. M. F. 1983 Coherent structures – reality and myth. Phys. Fluids 26, 2816–2850.Google Scholar
Hussain, A. K. M. F. 1986 Coherent structures and turbulence. J. Fluid Mech. 173, 303–356.Google Scholar
Hussain, A. K. M. F. & Hayakawa, M. 1987 Eduction of large-scale organized structures in a turbulent plane wake. J. Fluid Mech. 180, 193–229.Google Scholar
Kiya, M. & Matsumura, M. 1985 Turbulence structure in the intermediate wake of a circular cylinder. Bull. JSME 28, 2617–2624.Google Scholar
Kiya, M. & Matsumura, M. 1988 Incoherent turbulence structure in the near wake of a normal plate. J. Fluid Mech. 190, 343–356.Google Scholar
Matsumura, M., Huang, Z., Kawall, J. G. & Keffer, J. F. 1991 Coherent structures in the turbulent wake of a porous body. In Proc. Eighth Symp. on Turbulent Shear Flows, Munich, pp. 28-2-1–28-2-5.
Mumford, J. C. 1983 The structure of the large eddies in fully developed turbulent shear flows. Part 2. The plane wake. J. Fluid Mech. 137, 447–456.Google Scholar
Reynolds, W. C. & Hussain, A. K. M. F. 1972 The mechanism of an organized wake in turbulent shear flow. Part 3. Theoretical models and comparisons with experiments. J. Fluid Mech. 54, 263–288.Google Scholar
Townsend, A. A. 1979 Flow patterns of large eddies in a wake and in a boundary layer. J. Fluid Mech. 95, 515–537.Google Scholar
Tritton, D. J. 1988 Physical Fluid Dynamics, 2nd edn. Oxford Science.
Zhou, Y. & Antonia, R. A. 1992 Convection velocity measurements in cylinder wake. Expts. Fluids 13, 63–70.Google Scholar