Double pulsed particle image velocimeter with directional resolution for complex flows

C. C. Landreth, R. J. Adrian, C. S. Yao

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

An automated particle image velocimeter has been constructed to determine fluid velocity fields by directly measuring particle image separations. A new image shifting technique eliminates directional ambiguity from velocity measurements. Theoretical and practical considerations in implementing the PIV system are presented. Using a simple, known flow field to investigate system performance, RMS errors of less than 0.7% of full scale are achieved, and at low seeding density fewer than 10% of velocity measurements produce bad data. Applications of system measurements to the instantaneous velocity field of an axisymmetric jet are presented.

Original languageEnglish (US)
Pages (from-to)119-128
Number of pages10
JournalExperiments in Fluids
Volume6
Issue number2
DOIs
StatePublished - Jan 2004
Externally publishedYes

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ASJC Scopus subject areas

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

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