Hostname: page-component-77c89778f8-swr86 Total loading time: 0 Render date: 2024-07-20T01:50:54.709Z Has data issue: false hasContentIssue false
  • English
  • Français

Rotary oscillation control of a cylinder wake

Published online by Cambridge University Press:  26 April 2006

P. T. Tokumaru  and
P. E. Dimotakis
P. T. Tokumaru
Affiliation:
Graduate Aeronautical Laboratories, California Institute of Technology 301–46, Pasadena, CA 91125, USA
P. E. Dimotakis
Affiliation:
Graduate Aeronautical Laboratories, California Institute of Technology 301–46, Pasadena, CA 91125, USA
Get access Rights & Permissions [Opens in a new window]

Abstract

Exploratory experiments have been performed on circular cylinders executing forced rotary oscillations in a steady uniform flow. Flow visualization and wake profile measurements at moderate Reynolds numbers have shown that a considerable amount of control can be exerted over the structure of the wake by such means. In particular, a large increase, or decrease, in the resulting displacement thickness, estimated cylinder drag, and associated mixing with the free stream can be achieved, depending on the frequency and amplitude of oscillation.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 224 , March 1991 , pp. 77 - 90
Copyright
© 1991 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

Bishop, R. E. D. & Hassan, A. Y. 1964 The lift and drag on a circular cylinder oscillating in a flow field. Proc. R. Soc. Land. A 277, 51–75.Google Scholar
Bkatt, J. B.: 1953 Flow patterns in the wake of a oscillating aerofoil. Aero. Res. Counc. R. & M. 2773.Google Scholar
Chomaz, J. M., Huerre, P. & Rbdbkopp, L. G., 1988 Bifurcations to local and global modes in spacially developing flows. Phys. Rev. Lett. 60, 25–28.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
Dimotakis, P. E.: 1978 Laser-Doppler velocimetry momentum defect measurements of cable drag at low to moderate Reynolds numbers. NCBC Rep. Contract N62583/77-M-R541.Google Scholar
Ffowcs-Williams, J. E. & Zhao, B. C. 1989 The active control of vortex shedding. J. Fluids Struct. 3, 115–122.Google Scholar
Guokenheimer, J. & Holmes, P., 1983 Nonlinear Oscillations, Dynamical Systems and Bifurcations of Vector Fields. Springer.
Huerre, P. & Monkewitz, P. A., 1985 Absolute and convective instabilities in free shear layers. J. Fluid Mech. 159, 151–168.Google Scholar
Karniadakis, G. E. & Thiantafyllou, G. S., 1989 Frequency selection and asymptotic states in laminar wakes. J. Fluid Mech. 199, 441–469.Google Scholar
Koch, W.: 1985 Local instability characteristics and frequency determination of self-excited wake flows. J. Sound Vib. 99, 53–83.Google Scholar
Koochesfahani, M. M.: 1987 Vortical pattern in the wake of an oscillating airfoil, 25th AIAA Aerospace Sciences Meeting, 12–15 January 1987, Reno, Nevada, AIAA Paper 87–0111.Google Scholar
Koochesfahani, M. M. & Dimotakis, P. E., 1988 A cancellation experiment in a forced turbulent shear layer. In Proc. First Natl Fluid Dynamics Congr. 25–28 July 1988, Cincinatti, Ohio, vol. II, pp. 1204–1208; AIAA–88–3713-CP.
Koopman, G. H.: 1967 The vortex wakes of vibrating cylinders at low Reynolds numbers. J. Fluid Mech. 28, 501–512.Google Scholar
Kurosaka, M., Christiansen, W. H., Goodman, J. R., Tirres, L. & Wohlman, R. A., 1988 Crossflow transport induced by vortices. AIAA J. 26, 1403–1405.Google Scholar
Landau, L. D.: 1944 On the problem of turbulence. Dokl. Acad. Nauk. SSSR 44, 311–314.Google Scholar
Landau, L. D. & Lifshitz, E. M., 1987 Fluid Mechanics, 2nd edn. Pergamon.
Liepmann, H. W., Brown, G. L. & Nosenchuck, D. M., 1982 Control of laminar-instability waves using a new technique. J. Fluid Mech. 118, 187–200.Google Scholar
Liepmann, H. W. & Nosenchuck, D. M., 1982 Active control of laminar-turbulent transition. J. Fluid Mech. 118, 201–204.Google Scholar
Monkewitz, P. A.: 1988 The absolute and convective nature of instability in two-dimensional wakes at low Reynolds numbers. Phys. Fluids 31, 999–1006.Google Scholar
Monkewitz, P. A. & Nguyen, L. N., 1987 Absolute instability in the near-wake of two-dimensional bluff bodies. J. Fluids Struct. 1, 165–184.Google Scholar
Okajima, A., Takata, H. & Asanuma, T., 1975 Viscous flow around a rotationally oscillating circular cylinder. Inst. Space & Aero. Sci. (University of Tokyo), Rep. 532.Google Scholar
Ongoren, A. & Rockwell, D., 1988a Flow structure from an oscillating cylinder. Part 1. Mechanisms of phase shift and recovery in the near wake. J. Fluid Mech. 191, 197–223.Google Scholar
Ongoren, A. & Rockwell, D., 1988b Flow structure from an oscillating cylinder, Part 2. Mode competition in the near wake. J. Fluid Mech. 191, 225–245.Google Scholar
Provansal, M., Mathis, C. & Boyer, L., 1987 Benard-von Kármán instability: transient and forced regimes. J. Fluid Mech. 182, 1–22.Google Scholar
Roberts, F. A.: 1985 Effects of a periodic disturbance on structure and mixing in turbulent shear layers and wakes. Ph.D. thesis, California Institute of Technology.
Roberts, F. A. & Roshko, A., 1985 Effects of periodic forcing on mixing in turbulent shear layers and wakes. AlAA Shear Flow Control Conf. 12–14 March 1985, Boulder, CO, AIAA Paper 85–0570.Google Scholar
Stuart, J. T.: 1958 On the non-linear mechanics of hydrodynamic stability. J. Fluid Mech. 4, 1–21.Google Scholar
Stuart, J. T.: 1960 On the non-linear mechanics of wave disturbances in stable and unstable parallel flows. J. Fluid Mech. 9, 353–370.Google Scholar
Taneda, S.: 1978 Visual observations of the flow past a circular cylinder performing a rotatory oscillation. J. Phys. Soc. Japan 45, 1038–1043.Google Scholar
Triantafyllou, G. S., Triantafyllou, M. S. & Chryssostomidis, C., 1986 On the formation of vortex streets behind stationary cylinders. J. Fluid Mech. 170, 461–477.Google Scholar
Tritton, D. J.: 1959 Experiments on the flow past a circular cylinder at low Reynolds numbers. J. Fluid Mech. 6, 547–567.Google Scholar
Weihs, D.: 1972 Semi-infinite vortex trails and their relation to oscillating airfoils. J. Fluid Mech. 54, 679–690.Google Scholar
Williams, D. R. & Amato, C. W., 1988 Unsteady pulsing of cylinder wakes. In Proc. First Natl Fluid Dynamics Congr., 25–28 July 1988. Cincinatti. Ohio. pp. 731–737 (AIAA-88–3532-CP).
Williamson, C. H. K. & Roshko, A. 1988 Vortex formation in the wake of an oscillating cylinder. J. Fluids Struct. 2, 355–381.Google Scholar
Wu, J., Mo, J. & Vakili, A., 1989 On the wake of a cylinder with rotational oscillations. AIAA 2nd Shear Flow Conf., 13–16 March 1989, Tempe. AZ, AIAA Paper 89–1024.Google Scholar