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  Chaoticity of the wet granular gas

Fingerle, A., Herminghaus, S., & Zaburdaev, V. Y. (2007). Chaoticity of the wet granular gas. Physical Review E, 75: 061301. doi:10.1103/PhysRevE.75.061301.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-1421-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-284F-9
Genre: Journal Article

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 Creators:
Fingerle, A.1, Author              
Herminghaus, S.1, Author              
Zaburdaev, V. Yu.1, Author              
Affiliations:
1Group Granular matter and irreversibility, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063306              

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 Abstract: 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.

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Language(s): eng - English
 Dates: 2007-06-07
 Publication Status: Published in print
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 Rev. Method: Peer
 Identifiers: eDoc: 339898
DOI: 10.1103/PhysRevE.75.061301
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Title: Physical Review E
Source Genre: Journal
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Pages: 12 Volume / Issue: 75 Sequence Number: 061301 Start / End Page: - Identifier: -