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  Experimental investigation of the freely cooling granular gas

Maaß, C. C., Isert, N., Maret, G., & Aegerter, C. M. (2008). Experimental investigation of the freely cooling granular gas. Physical Review Letters, 100(24): 248001. doi:10.1103/PhysRevLett.100.248001.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-B46A-A Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-B46B-8
Genre: Journal Article

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 Creators:
Maaß, Corinna C.1, Author              
Isert, N., Author
Maret, G., Author
Aegerter, C. M., Author
Affiliations:
1Group Active soft matter, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063307              

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 Abstract: We investigate the dynamics of the freely cooling granular gas. For this purpose we diamagnetically levitate the grains providing a terrestrial milligravity environment. At early times we find good agreement with Haff’s law, where the time scale for particle collisions can be determined from independent measurements. At late times, clustering of particles occurs. This can be included in a Haff-like description taking into account the decreasing number of free particles. At very late times, only a single particle determines the dynamics, which is again described by a version of Haff’s law. With this a good description of the data is possible over the whole time range.

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Language(s): eng - English
 Dates: 2008-06-18
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1103/PhysRevLett.100.248001
BibTex Citekey: maas_experimental_2008
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Title: Physical Review Letters
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: 4 Volume / Issue: 100 (24) Sequence Number: 248001 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1