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Article Dans Une Revue Microgravity Sciences and Technology Année : 2007

Micrometric Ripples in a Capillary Tube, the Effect of Microgravity

Résumé

The oscillatory motion of a fluid carrying micron-sized particles inside a capillary tube is investigated experimentally in standard gravity condition. It is found that initially uniformly distributed particles can segregate and accumulate to form regularly spaced micron-sized particle clusters. The wavelength of the micro clusters is compared to data formacro-scale sand-ripple patterns and found to obey the sameuniversal scaling as these. A physical and dimensional analysis is performed that confirms the universality of the experimentally observed scaling. The effect of gravity can therefore be discussed on the basis of this universal scaling.
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Dates et versions

hal-00203701 , version 1 (11-01-2008)

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  • HAL Id : hal-00203701 , version 1

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Alain Merlen, Farzam Zoueshtiagh, Peter J. Thomas, V. Thomy. Micrometric Ripples in a Capillary Tube, the Effect of Microgravity. Microgravity Sciences and Technology, 2007, 19 (3-4), pp.60-61. ⟨hal-00203701⟩
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