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Aerodynamics of Long Aspect Ratio Fibrous Particles Under Settling

[+] Author Affiliations
Guo Q. Qi, Graham J. Nathan, Richard M. Kelso

The University of Adelaide, Adelaide, SA, Australia

Paper No. AJTEC2011-44061, pp. T20013-T20013-10; 10 pages
doi:10.1115/AJTEC2011-44061
From:
  • ASME/JSME 2011 8th Thermal Engineering Joint Conference
  • ASME/JSME 2011 8th Thermal Engineering Joint Conference
  • Honolulu, Hawaii, USA, March 13–17, 2011
  • ISBN: 978-0-7918-3892-1 | eISBN: 978-0-7918-3894-5
  • Copyright © 2011 by ASME

abstract

In present study, the aerodynamic behaviour of long aspect ratio fibrous particles has been investigated experimentally whilst settling in air under super dilute conditions without any influence of secondary flows and at particle Reynolds numbers of 30–80 based on fibre length. A method for laser-based measurement of the orientations and velocities of fibrous particles is presented. The experimental apparatus employs Particle Tracking Velocimetry (PTV) to calculate orientation and velocity based on the two end-points. Fibres’ mean vertical and horizontal components of settling velocities, angular velocity, orientation, number density and drag coefficient were calculated to analyze their aerodynamics.

Copyright © 2011 by ASME

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