Transition from laminar to turbulent flow in liquid filled microtubes

K. V. Sharp, Ronald Adrian

Research output: Contribution to journalArticle

179 Citations (Scopus)

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 numbers of ∼1,800-2,000, as indicated by greater-than-laminar pressure drop and micro-PIV measurements of mean velocity and rms velocity fluctuations at the centerline. Transition at anomalously low values of Reynolds number was never observed. Additionally, the results of more than 1,500 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 1,800.

Original languageEnglish (US)
Pages (from-to)741-747
Number of pages7
JournalExperiments in Fluids
Volume36
Issue number5
DOIs
StatePublished - May 2004
Externally publishedYes

Fingerprint

turbulent flow
Turbulent flow
Reynolds number
pressure drop
laminar flow
Pressure drop
Liquids
liquids
flow resistance
Random errors
random errors
particle image velocimetry
Laminar flow
polarity
flow velocity
Flow rate
Glass
glass

ASJC Scopus subject areas

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Mechanics of Materials
  • Computational Mechanics
  • Physics and Astronomy(all)

Cite this

Transition from laminar to turbulent flow in liquid filled microtubes. / Sharp, K. V.; Adrian, Ronald.

In: Experiments in Fluids, Vol. 36, No. 5, 05.2004, p. 741-747.

Research output: Contribution to journalArticle

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