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Micrometric granular ripple patterns in a capillary tube
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Zoueshtiagh, Farzam, Thomas, P. J. (Peter J.), Thomy, V. and Merlen, A. (2008) Micrometric granular ripple patterns in a capillary tube. Physical Review Letters, Volume 100 (Number 5). Article 054501. doi:10.1103/PhysRevLett.100.054501 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.100.054501
Abstract
The oscillatory motion of a fluid carrying micron-sized particles inside a capillary tube is investigated experimentally. It is found that initially uniformly distributed particles can segregate and accumulate to form regularly spaced micron-sized particle clusters. The wavelength of the microclusters is compared to data for macroscale sand-ripple patterns and found to obey the same universal scaling as these. A dimensional analysis is performed that confirms the universality of the experimentally observed scaling. The experimental data for the microripple clusters further suggest the existence of a minimum particle length scale for which patterns can form and below which the Brownian motion associated with the molecules of the matrix fluid inhibits pattern formation.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics T Technology > TJ Mechanical engineering and machinery |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering Faculty of Science, Engineering and Medicine > Science > Physics |
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Library of Congress Subject Headings (LCSH): | Microfluidic devices, Field-flow fractionation, Particles, Brownian movements, Capillarity | ||||
Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | American Physical Society | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 8 February 2008 | ||||
Dates: |
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Volume: | Volume 100 | ||||
Number: | Number 5 | ||||
Number of Pages: | 4 | ||||
Page Range: | Article 054501 | ||||
DOI: | 10.1103/PhysRevLett.100.054501 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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