Optimization of particle image velocimeters

Richard D. Keane, Ronald Adrian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

The spatial resolution, detection rate, accuracy and reliability of a particle image velocimeter depend critically upon careful selection of a number of parameters of the PIV system and the fluid. An analytical model has been developed to analyze the effects of variation of experimental parameters which optimize the system. A set of six nondimensional parameters which are most significant in optimizing the PIV autocorrelation algorithm are derived. They are the data validation criterion, the particle image density, the relative in-plane image displacement, the relative out-of-plane displacement, a velocity gradient parameter and the ratio of the mean image diameter to the interrogation spot diameter. A comparison is made with the method of analysis by Young's fringes to show this set of parameters is most significant there and the analysis is valid for both methods of PIV system interrogation. A study of a range of specific velocity fields has been undertaken to determine the influence of these parameters in each case and recommendations are made for interrogation of these velocity fields. The presence of velocity gradients in the velocity field has been examined for the cases of pure shear and solid body rotation. Corrections for the statistical bias are developed, with recommendations for minimizing bias effects and loss of signal strength.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Editors Anon
Place of PublicationBellingham, WA, United States
PublisherPubl by Int Soc for Optical Engineering
Pages139-159
Number of pages21
Volume1404
ISBN (Print)0912035390
StatePublished - 1990
Externally publishedYes
EventICALEO '89 - Optical Methods in Flow and Particle Diagnostics - Orlando, FL, USA
Duration: Oct 15 1989Oct 20 1989

Other

OtherICALEO '89 - Optical Methods in Flow and Particle Diagnostics
CityOrlando, FL, USA
Period10/15/8910/20/89

Fingerprint

Velocimeters
optimization
interrogation
particle image velocimetry
velocity distribution
recommendations
gradients
Autocorrelation
Analytical models
autocorrelation
spatial resolution
Fluids
shear
fluids

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Keane, R. D., & Adrian, R. (1990). Optimization of particle image velocimeters. In Anon (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 1404, pp. 139-159). Bellingham, WA, United States: Publ by Int Soc for Optical Engineering.

Optimization of particle image velocimeters. / Keane, Richard D.; Adrian, Ronald.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Anon. Vol. 1404 Bellingham, WA, United States : Publ by Int Soc for Optical Engineering, 1990. p. 139-159.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Keane, RD & Adrian, R 1990, Optimization of particle image velocimeters. in Anon (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 1404, Publ by Int Soc for Optical Engineering, Bellingham, WA, United States, pp. 139-159, ICALEO '89 - Optical Methods in Flow and Particle Diagnostics, Orlando, FL, USA, 10/15/89.
Keane RD, Adrian R. Optimization of particle image velocimeters. In Anon, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1404. Bellingham, WA, United States: Publ by Int Soc for Optical Engineering. 1990. p. 139-159
Keane, Richard D. ; Adrian, Ronald. / Optimization of particle image velocimeters. Proceedings of SPIE - The International Society for Optical Engineering. editor / Anon. Vol. 1404 Bellingham, WA, United States : Publ by Int Soc for Optical Engineering, 1990. pp. 139-159
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