The behavior of fibers suspended in a flow between two flat counter-rotating discs has been studied experimentally. Captured images of the fibers in the flow were analyzed by steerable filters, to extract positions and orientations of the fibers. Experiments were performed for gaps between the discs of less than one fiber length, and for equal absolute values of the angular velocities for the discs. The length-to-diameter ratio of the fibers was approximately 14. During certain conditions, the fibers organized themselves in a distinct manner, which we will denote as fiber trains, in which three or more fibers are aligned next to each other, at the same radial position, with a short fiber-to-fiber distance. The direction of the individual fibers is radial and the direction of the whole train is tangential. Trains containing more than 60 fibers have been observed and are quite impressing.
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ASME 2009 Fluids Engineering Division Summer Meeting
August 2–6, 2009
Vail, Colorado, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4372-7
PROCEEDINGS PAPER
Self-Organization of Fibers in a Suspension Between Two Counter-Rotating Discs
Charlotte Ahlberg,
Charlotte Ahlberg
Royal Institute of Technology, Stockholm, Sweden
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Fredrik Lundell,
Fredrik Lundell
Royal Institute of Technology, Stockholm, Sweden
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L. Daniel So¨derberg
L. Daniel So¨derberg
Royal Institute of Technology, Stockholm, Sweden
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Charlotte Ahlberg
Royal Institute of Technology, Stockholm, Sweden
Fredrik Lundell
Royal Institute of Technology, Stockholm, Sweden
L. Daniel So¨derberg
Royal Institute of Technology, Stockholm, Sweden
Paper No:
FEDSM2009-78127, pp. 585-592; 8 pages
Published Online:
July 26, 2010
Citation
Ahlberg, C, Lundell, F, & So¨derberg, LD. "Self-Organization of Fibers in a Suspension Between Two Counter-Rotating Discs." Proceedings of the ASME 2009 Fluids Engineering Division Summer Meeting. Volume 1: Symposia, Parts A, B and C. Vail, Colorado, USA. August 2–6, 2009. pp. 585-592. ASME. https://doi.org/10.1115/FEDSM2009-78127
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