Double pulsed particle image velocimeter with directional resolution for complex flows

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

doi:10.1007/BF00196463

Double pulsed particle image velocimeter with directional resolution for complex flows

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

Research output: Contribution to journal › Article › peer-review

18 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 language	English (US)
Pages (from-to)	119-128
Number of pages	10
Journal	Experiments in Fluids
Volume	6
Issue number	2
DOIs	https://doi.org/10.1007/BF00196463
State	Published - Jan 2004
Externally published	Yes

ASJC Scopus subject areas

Computational Mechanics
Mechanics of Materials
General Physics and Astronomy
Fluid Flow and Transfer Processes

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10.1007/BF00196463

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AB - 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.

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Double pulsed particle image velocimeter with directional resolution for complex flows

Abstract

ASJC Scopus subject areas

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