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          Institute: MPI für Dynamik und Selbstorganisation     Collection: Hydrodynamik und Strukturbildung     Display Documents



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ID: 226311.0, MPI für Dynamik und Selbstorganisation / Hydrodynamik und Strukturbildung
Dislocation dynamics in Rayleigh-Bénard convection
Authors:Walter, T.; Bodenschatz, E.; Pesch, W.
Language:English
Date of Publication (YYYY-MM-DD):2004-09
Title of Journal:Chaos
Volume:14
Start Page:933
End Page:939
Review Status:not specified
Audience:Experts Only
Abstract / Description:Theoretical results on the dynamics of dislocations in Rayleigh-Benard convection are reported both for a Swift-Hohenberg model and the Oberbeck-Boussinesq equations. For intermediate Prandtl numbers the motion of dislocations is found to be driven by the superposition of two independent contributions: (i) the Peach-Koehler force and (ii) an advection force on the dislocation core by its self-generated mean flow. Their competition allows to explain the experimentally observed bound dislocation pairs.
External Publication Status:published
Document Type:Article
Communicated by:Folkert Müller-Hoissen
Affiliations:MPI für Dynamik und Selbstorganisation/Hydrodynamik und Strukturbildung
External Affiliations:Cornell University, Ithaca, NY, USA
Identifiers:DOI:10.1063/1.1772231
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