Document Detail

Cellular flow patterns and their evolutionary scenarios in three-dimensional Rayleigh-Bénard convection.
MedLine Citation:
PMID:  12786493     Owner:  NLM     Status:  PubMed-not-MEDLINE    
The evolution of three-dimensional, cellular convective flows in a plane horizontal layer of a Boussinesq fluid heated from below is studied numerically. Slow motion in the form of a spatially periodic pattern of hexagonal cells is introduced initially. In a further development, the flow can undergo a sequence of transitions between various cell types. The features of the flow evolution agree with the idea of the flow seeking an optimal scale. In particular, two-vortex polygonal cells may form at some evolution stages, with an annular planform of the upflow region and downflows localized in both central and peripheral regions of the cells. If short-wave hexagons are stable, they exhibit a specific, stellate fine structure.
A V Getling; O Brausch
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Publication Detail:
Type:  Journal Article     Date:  2003-04-29
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  67     ISSN:  1539-3755     ISO Abbreviation:  Phys Rev E Stat Nonlin Soft Matter Phys     Publication Date:  2003 Apr 
Date Detail:
Created Date:  2003-06-05     Completed Date:  2003-06-27     Revised Date:  2003-11-04    
Medline Journal Info:
Nlm Unique ID:  101136452     Medline TA:  Phys Rev E Stat Nonlin Soft Matter Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  046313     Citation Subset:  -    
Institute of Nuclear Physics, Lomonosov Moscow State University, 119992 Moscow, Russia.
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