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ID: 339898.0, MPI für Dynamik und Selbstorganisation / Dynamik komplexer Fluide
Chaoticity of the wet granular gas
Authors:Fingerle, A.; Herminghaus, S.; Zaburdaev, V. Yu.
Language:English
Date of Publication (YYYY-MM-DD):2007-06-07
Title of Journal:Physical Review E
Volume:75
Start Page:061301-1
End Page:061301-12
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:In this work we derive an analytic expression for the Kolmogorov-Sinai entropy of dilute wet granular
matter, valid for any spatial dimension. The grains are modeled as hard spheres and the influence of the wetting
liquid is described according to the capillary model, in which dissipation is due to the hysteretic cohesion force
of capillary bridges. The Kolmogorov-Sinai entropy is expanded in a series with respect to density. We find a
rapid increase of the leading term when liquid is added. This demonstrates the sensitivity of the granular
dynamics to humidity, and shows that the liquid significantly increases the chaoticity of the granular gas.
External Publication Status:published
Document Type:Article
Version Comment:Automatic journal name synchronization
Communicated by:Folkert Müller-Hoissen
Affiliations:MPI für Dynamik und Selbstorganisation/Dynamik komplexer Fluide
Identifiers:DOI:10.1103/PhysRevE.75.061301
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