Particles for tracing turbulent liquid helium

Gregory P. Bewley, K. R. Sreenivasan, Daniel P. Lathrop

Research output: Contribution to journalArticle

Abstract

We address the problem of making quantitative measurements of local flow velocities in turbulent liquid helium, using tracer particles. We survey and evaluate presently available particles and previous work to establish the need to develop new particles for the purpose. We present the first practical solution for visualizing fluid motions using a suspension of solid hydrogen particles with diameters of about 2 μm. The hydrogen particles can be used to study flows with Taylor-microscale Reynolds numbers between 85 and 775. The particles can be used equally well with the PIV, LDV, or particle-tracking techniques.

Original languageEnglish (US)
Pages (from-to)887-896
Number of pages10
JournalExperiments in Fluids
Volume44
Issue number6
DOIs
StatePublished - Jun 2008

Fingerprint

Helium
tracing
liquid helium
Hydrogen
Liquids
Flow velocity
Suspensions
Reynolds number
Fluids
hydrogen
particle image velocimetry
microbalances
tracers
flow velocity
fluids

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Computational Mechanics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Particles for tracing turbulent liquid helium. / Bewley, Gregory P.; Sreenivasan, K. R.; Lathrop, Daniel P.

In: Experiments in Fluids, Vol. 44, No. 6, 06.2008, p. 887-896.

Research output: Contribution to journalArticle

Bewley, Gregory P. ; Sreenivasan, K. R. ; Lathrop, Daniel P. / Particles for tracing turbulent liquid helium. In: Experiments in Fluids. 2008 ; Vol. 44, No. 6. pp. 887-896.
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