Double pulsed particle image velocimeter with directional resolution for complex flows.

C. C. Landreth, Ronald Adrian, C. S. Yao

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Abstract

An automated particle image velocimeter was 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 were 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. (A)

Original languageEnglish (US)
JournalEXP. FLUIDS
Volume6
Issue number2 , 1988, p.119-128.
Publication statusPublished - 1800
Externally publishedYes

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ASJC Scopus subject areas

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

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