Advertisement

Phase Diffusion in a Ramped Convection Channel

  • I. Rehberg
  • F. H. Busse
Conference paper
Part of the Springer Series in Synergetics book series (SSSYN, volume 41)

Summary

The drift of transverse convection rolls in a channel heated from below has been studied experimentally. Owing to the gradual decrease of the height at the ends of the channel, the Rayleigh number exhibits a ramplike decay toward subcritical values. Such a configuration selects a small wavenumber band. But the wavenumber bands selected by the two ramps may cease to overlap at supercritical Rayleigh numbers. The resulting wavenumber gradient causes phase diffusion, i.e. the convection pattern drifts from the high wavenumber end to the low wavenumber end. Various observational data on this phenomenon are presented.

Keywords

Rayleigh Number Drift Velocity Phase Diffusion Convection Pattern Convection Roll 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M. Lowe, J.P. Gollub, Phys. Rev.A31, 3839 (1985)Google Scholar
  2. 2.
    M.A. Dominguez-Lerma, D.S. Cannell, G.Ahlers, Phys.Rev.A34, 4956 (1986)CrossRefADSGoogle Scholar
  3. 3.
    P.M. Eagles, Proc.Roy.Soc. London, Ser.A371, 359 (1980)CrossRefADSMathSciNetGoogle Scholar
  4. 4.
    L. Kramer, E. Ben-Jacob, H. Brand, M.C. Cross, Phys.Rev.Lett.49, 1891 (1982)CrossRefADSMathSciNetGoogle Scholar
  5. 5.
    L. Kramer, H. Riecke, Z. Phys. B59, 245 (1985)CrossRefADSMathSciNetGoogle Scholar
  6. 6.
    Y. Pomeau, P. Manneville, J. Phys. (Paris) 42, 1067 (1981)CrossRefMathSciNetGoogle Scholar
  7. 7.
    H. Riecke, Ph.D. thesis, Universität Bayreuth (1986)Google Scholar
  8. 8.
    H. Riecke, Europhys. Lett. 2, 1 (1986)CrossRefADSGoogle Scholar
  9. 9.
    I. Rehberg, H. Riecke: In The Physics of Stucture Formation, ed. by W. Güttinger and G. Dangelmayr, Springer Ser. Syn., Vol.37 (Springer, Berlin, Heidelberg 1987) p.142Google Scholar
  10. 10.
    H. Frick, R.M. Clever, ZAMP 31, 502 (1980)CrossRefzbMATHADSGoogle Scholar
  11. 11.
    M.C. Cross, Phys. Rev.A29, 391 (1984)CrossRefADSGoogle Scholar
  12. 12.
    I. Rehberg, E. Bodenschatz, B. Winkler and F.H. Busse, Phys. Rev. Lett.59, 282 (1987)CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • I. Rehberg
    • 1
  • F. H. Busse
    • 1
  1. 1.Physikalisches InstitutUniversität BayreuthBayreuthFed. Rep. of Germany

Personalised recommendations