Rayleigh-Bénard convection in large-aspect-ratio domains

M. R. Paul, K. H. Chiam, M. C. Cross, P. F. Fischer

Research output: Contribution to journalArticle

Abstract

The application of large-scale numerical simulations of Rayleigh-Bénard convection in large-aspect-ratio cylindrical domain with realistic boundary conditions to analyze the domain coarsening and wave number selection, was investigated. It was found that the various measures of the coarsening dynamic scales in time with power-law exponents, indicating that multiple length scales were required in describing the time dependent pattern evolution. The results obtained indicated the translational correlation length scales with time as t0.12. A possible wave number selection mechanism was presented from the final pattern which evolve toward the wave number where isolated dislocations become motionless.

Original languageEnglish (US)
Article number064503
Pages (from-to)064503-1-064503-4
JournalPhysical review letters
Volume93
Issue number6
DOIs
StatePublished - Aug 6 2004
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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