SELF-ORGANIZATION OF FIBERS IN A SUSPENSION BETWEEN TWO COUNTER-ROTATING DISCS
2009 (English)In: PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER CONFERENCE, VOL 1, PTS A-C, NEW YORK: AMER SOC MECHANICAL ENGINEERS , 2009, 585-592 p.Conference paper (Refereed)
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.
Place, publisher, year, edition, pages
NEW YORK: AMER SOC MECHANICAL ENGINEERS , 2009. 585-592 p.
STEERABLE FILTERS, PARTICLES, DESIGN, DISKS, FLOW
IdentifiersURN: urn:nbn:se:kth:diva-29640ISI: 000280424200062ScopusID: 2-s2.0-77952811171ISBN: 978-0-7918-4372-7OAI: oai:DiVA.org:kth-29640DiVA: diva2:401205
ASME Fluids Engineering Division Summer Meeting Vail, CO, AUG 02-06, 2009
QC 201103012011-03-012011-02-112011-03-01Bibliographically approved