Skip to main content Accessibility help
×
Home

Image processing of the near wakes of stationary and rotating cylinders

  • J. Massons (a1), X. Ruiz (a1) and F. Díaz (a1)

Abstract

Statistical properties of the position of the turbulent/non-turbulent interface in the near wake of stationary and spinning cylinders have been measured for Re = 2000, using image processing techniques. The results include the first statistical moments, intermittency and burst-rate profiles, auto- and cross-correlation functions, auto- and cross-spectra and phase spectra. They indicate that the rotation of the cylinder causes substantial changes in the structure of the flow.

Copyright

References

Hide All
Antonia, R. A. & Bradshaw, P., 1971 Conditional sampling of turbulent shear flows. Imperial College Aeronaut. Rep. 71–04.
Béguier, C., Giralt, F. & Keffer, J. F., 1978 Turbulent heated flows with asymmetrical mean temperature profiles. Proc VI Intl Heat Transfer Conference, Toronto.
Browne, L. W. B. & Antonia, R. A. 1986 Reynolds shear stress and heat flux measurements in a cylinder wake. Phys. Fluids 29, 709713.
Budny, R. S., Kawall, J. G. & Keffer, J. G., 1979 Vortex street evolution in the wake of a circular cylinder. Proc. 2nd. Intl Symp. on Turbulent Shear Flows. Imperial College, London.
Charrier, B.: 1979 Etude théorique et experimentale de l'effect Magnus destiné à la propulsion des navires. Thesis. University of Paris VI.
Díaz, F., Gavaldà, J., Kawall, J. G., Keffer, J. F. & Giralt, F., 1983 Vortex shedding from a spinning cylinder. Phys. Fluids 26, 34543460.
Díaz, F., Gavaldà, J., Kawall, J. G., Keffer, J. F. & Giralt, F., 1985 Asymmetrical wake generated by a spinning cylinder. AIAA J. 23, 4954.
Eaton, B. E.: 1987 Analysis of laminar vortex shedding behind a circular cylinder by computer-aided flow visualization. J. Fluid Mech. 180, 117145.
Freymuth, P., Finaish, F. & Bank, W., 1986 Visualization of the vortex street behind a circular cylinder at low Reynolds numbers. Phys. Fluids 29, 13211323.
Gerrard, J. H.: 1966 The mechanics of the formation region of vortices behind bluff bodies. J. Fluid Mech. 25, 401413.
Hernán, M. A. & Jiménez, J. 1982 Computer analysis of a high-speed film for a turbulent mixing layer. J. Fluid Mech. 119, 323345.
Hesselink, L.: 1988 Digital image processing in flow visualization. Ann. Rev. Fluid Mech. 20, 421485.
Hesselink, L. & White, B. S., 1983 Digital image processing of flow visualization photographs. Appl. Opt. 22, 14541461.
Jackson, C. P.: 1987 A finite-element study of the onset of vortex shedding in flow past variously shaped bodies. J. Fluid Mech. 182, 2345.
Keffer, J. F.: 1965 The uniform distortion of a turbulent wake. J. Fluid Mech. 22, 135159.
Kobayashi, T., Yoshitake, Y., Saga, T. & Segawa, S., 1985 An image processing technique for determining two dimensional flow fields with reverse flow. In Proc. Intl Symp. on Physical and Numerical Flow Visualization (ed. M. L. Billet, J. H. Kim & T. R. Heidrick), pp. 3946. ASME.
Kourta, A., Boisson, H. C., Chassaing, P. & Ha Ming, H. 1987 Nonlinear interaction and the transition to turbulence in the wake of a circular cylinder. J. Fluid Mech. 181, 141161.
LaRue, J. C. & Libby, P. A., 1976 Statistical properties of the interface in a turbulent wake of a heated cylinder. Phys. Fluids 19, 18641875.
Lim, C. C. & Sirovich, L., 1986 Wave propagation on the von Kármán trail. Phys. Fluids 29, 39103911.
Marko, K. A. & Rimal, L., 1985 Video recording and quantitative analysis of seed particle track images in unsteady flows. Appl. Opt. 24, 36663672.
Massons, J.: 1987 Processat digital d'imatges aplicat a l'anàlist de la generació i establiment de l'estela d'un cilindre. Thesis. University of Barcelona.
Massons, J., Escoda, J., Gavaldà, J. & Díaz, F. 1986 Image analysis of the spinning cylinder near wake. In Advances in Turbulence (ed. G. Comte-Bellot & J. Mathieu), pp. 508513. Springer.
Nagib, H., Corke, T., Hilland, K. & Way, J., 1979 Computer analysis of flow visualization records obtained by the smoke-wire technique. In Proc. Dynamic Flow Conference 1978 (ed. L. S. G. Kovasznay, A. Faure, P. Buchhave & L. Fulachier), pp. 567581.
Prasad, R. R. & Sreenivasan, K. R., 1989 Scalar interfaces in digital images of turbulent flows. Exps Fluids (in press).
Rajagopalan, S. & Antonia, R. A., 1981 Properties of the large structure in slightly heated turbulent mixing layer of a plane jet. J. Fluid Mech. 105, 261281.
Roshko, A.: 1953 On the development of turbulent wakes from vortex streets. NACA Tech. Note 2913.
Sadjadi, F. A., Wand, J. J., Hall, E. L. & Roberts, M. J., 1980 Measurement of two phase flow using image correlation. Proc. 5th Intl Conf. of Pattern Recognition, Miami Beach, Florida.
Schlihting, H.: 1958 Boundary Layer Theory. McGraw-Hill.
Shokr, M. & Keffer, J. F., 1982 Digital image analysis of a complex turbulent wake. In Structure of Complex Turbulent Shear Flow (ed. R. Dumas & L. Fulachier), pp. 165174. Springer.
Shokr, M., Keffer, J. F. & Kawall, J. G., 1983 Structural features of the near region of an asymmetric turbulent wake. Proc. IVth Symp. on Turbulent Shear Flows. Karlsruhe.
Sreenivasan, K. R. & Tavoularis, S., 1980 On the skewness of the temperature derivative in turbulent flows. J. Fluid Mech. 101, 783795.
Thomas, R. M.: 1973 Conditional sampling and other measurements in a plane turbulent wake. J. Fluid Mech. 57, 549582.
Townsend, A. A.: 1949 The fully developed turbulent wake of a circular cylinder. Austral. J. Sci. Res. A 2, 451468.
Tritton, D. J.: 1959 Experiments on the flow past a circular cylinder at low Reynolds numbers. J. Fluid Mech. 6, 547564.
MathJax
MathJax is a JavaScript display engine for mathematics. For more information see http://www.mathjax.org.

Image processing of the near wakes of stationary and rotating cylinders

  • J. Massons (a1), X. Ruiz (a1) and F. Díaz (a1)

Metrics

Full text views

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

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed