Experimental Investigation of Liquid and Particle -Laden Flows in Microtubes
Sharp, Kendra Vail
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https://hdl.handle.net/2142/87697
Description
Title
Experimental Investigation of Liquid and Particle -Laden Flows in Microtubes
Author(s)
Sharp, Kendra Vail
Issue Date
2001
Doctoral Committee Chair(s)
Adrian, Ronald J.
Department of Study
Theoretical and Applied Mechanics
Discipline
Theoretical and Applied Mechanics
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Applied Mechanics
Language
eng
Abstract
Since flow blockages are the ultimate form of increased flow resistance, the research emphasis is focused on the mechanisms that lead to blockage. Different blockage mechanisms are observed in different regimes defined by the ratio of particle diameter to tube diameter. For example, for 0.33 D < dp < 0.46D, a shear-induced arching mechanism has been observed, similar to the arching phenomenon common to granular flows. Orthokinetic flocculation occurs when shear-induced particle collisions result in particles attaching by surface forces to form large groups of physically connected particles (flocs). It is also suggested as a mechanism for blockage that occurs when d p < 0.1D.
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