Research Article
May 1968
Fall Velocity of Irregular Shaped Particles
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 94, Issue 3
Abstract
The determination of the free-fall velocity of irregularly shaped particles in viscous fluids is presented. A shape parameter is proposed which correlates Reynolds number with drag coefficient to describe the motion of irregular shapes. This shape parameter results in a useful Reynolds number-drag coefficient relation. Data for analysis were collected from tests of natural gravel-sized particles of various shapes and sizes supplemented by larger regular geometric shapes. The basic motions of a particle in free-fall are classified and analyzed considering causes such as flow separation and vortex formation.
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Published In
Journal of the Hydraulics Division
Volume 94 • Issue 3 • May 1968
Pages: 721 - 738
Copyright
© 1968 American Society of Civil Engineers.
History
Published in print: May 1968
Published online: Feb 3, 2021
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Authors
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George R. Alger, A.M.ASCE
Assoc. Prof. of Civ. Engrg., Michigan Technological Univ., Houghton, Mich.
Daryl B. Simons, M.ASCE
Assoc. Dean for Research and Prof. of Civ. Engrg., Colorado State Univ., Ft. Collins, Cola.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.