Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-19T04:19:12.183Z Has data issue: false hasContentIssue false

Wave pattern formation in a fluid annulus with a radially vibrating inner cylinder

Published online by Cambridge University Press:  26 April 2006

T. S. Krasnopolskaya
Affiliation:
Fluid Dynamics Laboratory, Department of Physics, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
G. J. F. Van Heijst
Affiliation:
Fluid Dynamics Laboratory, Department of Physics, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands

Abstract

The phenomenon of pattern formation of free-surface waves of a fluid confined in an annulus the inner wall of which vibrates radially, is investigated both theoretically and experimentally. Although the waves are excited by harmonic axisymmetric deformations of the inner shell, depending on the vibration frequency both axisymmetric and non-symmetric wave patterns may arise.

Experimental observations have revealed that waves are excited in two different resonance regimes. The first type corresponds to forced resonance, in which axisymmetric patterns are realized with eigenfrequencies equal to the frequency of excitation. The second kind is parametric resonance, in which case the waves are ‘transverse’, with their crests and troughs aligned perpendicular to the vibrating wall. These so-called cross-waves have frequencies equal to half of that of the wavemaker.

Both kinds of resonance were investigated theoretically using Lamé's method of superposition. It was shown experimentally that the pure forced resonant standing waves are not realized when the amplitude of excitation is beyond the threshold of parametric resonance for non-symmetric waves. The experimental observations agree very well with the theoretical results.

Type
Research Article
Copyright
© 1996 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.)

Footnotes

On leave from Institute of Mechanics. National Academy of Sciences of Ukraine. 252057 Kiev, Ukraine.

References

Becker, J. M. & Miles, J. W. 1991 Standing radial cross-waves. J. Fluid Mech. 222, 471499.Google Scholar
Becker, J. M. & Miles, J. W. 1992 Progressive radial cross-waves. J. Fluid Mech. 245, 2946.Google Scholar
Bromwich, T. J. I. 1959 An Introduction to the Theory of Infinite Series. London: Macmillan.
Faraday, M. 1831 On a peculiar class of acoustical figures; and on certain forms assumed by groups of particles upon vibrating elastic surfaces. Phil. Trans. R. Soc. Lond. A 121, 299340.Google Scholar
Fryer, D. K. & Thomas, M. W. S. 1975 A linear twin wire probe for measuring water waves. J. Phys. E: Sci. Instrum. 8, 405408.Google Scholar
Garrett, C. J. R. 1970 Cross waves. J. Fluid Mech. 41, 837849.Google Scholar
Havelock, T. H. 1929 Forced surface waves on water. Phil. Mag. (7) 8, 569576.Google Scholar
Henderson, D. M. & Miles, J. W. 1990 Single-mode Faraday waves in small cylinders. J. Fluid Mech. 213, 95109.Google Scholar
Henderson, D. M. & Miles, J. W. 1991 Faraday waves in 2:1 resonance. J. Fluid Mech. 222, 449470.Google Scholar
Hocking, L. M. 1988 Capillary-gravity waves produced by a heaving body. J. Fluid Mech. 186, 337349.Google Scholar
Hocking, L. M. & Mahdmina, D. 1991 Capillary-gravity waves produced by a wavemaker. J. Fluid Mech. 224, 217226.Google Scholar
Krasnopolskaya, T. S. & Podchasov, N. P. 1992a Waves in a liquid between two coaxial cylindrical shells induced by vibrations of the inner cylinder. Intl Appl. Mech. 28, 188195.Google Scholar
Krasnopolskaya, T. S. & Podchasov, N. P. 1992b Forced oscillations of a liquid between two cylinders excited by vibrations of an inner shell. Intl Appl. Mech. 28, 240245.Google Scholar
Lamb, H. 1932 Hydrodynamics.. Cambridge University Press.
Lamé, G. 1852 Leçons sur la Théorie Mathématique de l’élasticité des Corps Solids. Bachelier, Paris.
Lebedev, N. N., Skal'skaya, I. P. & Uflyand, Ya. S. 1966 Problems in Mathematical Physics. Oxford: Pergamon.
Luke, J. C. 1967 A variational principle for a fluid with a free surface. J. Fluid Mech. 27, 395397.Google Scholar
Miles, J. W. 1967 Surface-wave damping in closed basins. Proc. R. Soc. Lond. A 297, 459475.Google Scholar
Miles, J. W. 1984a Nonlinear Faraday resonance. J. Fluid Mech. 146, 285302.Google Scholar
Miles, J. W. 1984a Internally resonànt surface waves in a circular cylinder. J. Fluid Mech. 149, 114.Google Scholar
Miles, J. W. 1984c Resonantly forced surface waves in a circular cylinder. J. Fluid Mech. 149, 1531.Google Scholar
Miles, J. W. & Henderson, D. 1990 Parametrically forced surface waves. Ann. Rev. Fluid Mech. 22, 143165.Google Scholar
Taneda, S. 1991 Visual observation of the flow around a half-submerged oscillating sphere. J. Fluid Mech. 227, 193209.Google Scholar
Taneda, S. 1994 Visual observations of the flow around a half-submerged oscillating circular cylinder. Fluid Dyn. Res. 13, 119151.Google Scholar
Tatsuno, M., Inoue, S. & Okabe, J. 1969 Transfiguration of surface waves. Rep. Res. Inst. Appl. Mech. 17, 195215.Google Scholar
Supplementary material: PDF

Krasnopolskaya and Heijst supplementary material

Supplementary Material

Download Krasnopolskaya and Heijst supplementary material(PDF)
PDF 648.8 KB