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Title:Transition from laminar to turbulent flow in liquid filled microtubes
Author(s):Sharp, Kendra V.; Adrian, Ronald J.
Subject(s):turbulent flow
turbulence physics
Abstract:The transition to turbulent flow is studied for liquids of different polarities in glass microtubes having diameters between 50 and 247 µm. The onset of transition occurs at Reynolds number ~1800–2000, as indicated by greater-than-laminar pressure drop and micro-PIV measurements of mean velocity and root-mean-square velocity fluctuations at the centerline. Transition at anomalously low values of Reynolds number was never observed. Additionally, the results of more than 1500 measurements of pressure drop versus flow rate confirm the macroscopic Poiseuille flow result for laminar flow resistance to within -1% systematic and ±2.5% rms random error for Reynolds numbers less than 1800.
Issue Date:2003-07
Publisher:Department of Theoretical and Applied Mechanics (UIUC)
Series/Report:TAM Reports 1030
Genre:Technical Report
Publication Status:published or submitted for publication
Peer Reviewed:is peer reviewed
Date Available in IDEALS:2007-03-08
Is Version Of:Published as: Kendra V. Sharp and Ronald J. Adrian. Transition from laminar to turbulent flow in liquid filled microtubes. Experiments in Fluids, Vol. 36, No. 5, 2004, pp. 741-747. DOI: 10.1007/s00348-003-0753-3. Copyright 2004 Springer.

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  • Technical Reports - Theoretical and Applied Mechanics (TAM)
    TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.

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