A numerical test on the accuracy of particle image velocimetry

WEI Qing-ding; YAN Bin; CHEN Jun

doi:10.3969/j.issn.1672-9897.2001.02.007

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Article Navigation > Journal of Experiments in Fluid Mechanics > 2001 > 15(2): 47-52

WEI Qing-ding, YAN Bin, CHEN Jun. A numerical test on the accuracy of particle image velocimetry[J]. Journal of Experiments in Fluid Mechanics, 2001, 15(2): 47-52. doi: 10.3969/j.issn.1672-9897.2001.02.007

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A numerical test on the accuracy of particle image velocimetry

doi: 10.3969/j.issn.1672-9897.2001.02.007

Publish Date: 2001-02-01

Abstract

Abstract

A numerical test on the accuracy of the particle image velocimetry is conducted.It is assumed that the information of the particle image photographed by double-exposure with a light sheet is processed by correlation method.In order to study the effect of non-uniformity of fluid motion on determination of the velocity vector at an interrogation spot,five typical non-uniform factors are discussed.A statistical method is used to get quantitative estimation.The results suggest that the accuracy of this PIV method is significantly affected by some factors of non-uniform flow.

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