Cross-correlation analysis of particle image fields for velocity measurement

R. D. Keane, Ronald Adrian

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In order to improve the performance of particle image velocimetry in measuring instantaneous velocity fields, direct cross- correlation of image fields can be used in place of auto-correlation methods of interrogation of double or multiple exposure recordings. Furthermore with improved technology in high speed photographic recording and increased resolution of video array detectors, cross-correlation methods of interrogation of successive single exposure frames can be used to measure the separation of pairs of particle images between successive frames. By knowing the extent of image shifting used in a multiple exposure and by a priori knowledge of the mean flow-field, the cross-correlation of different sized interrogation spots with known separation can be optimized in terms of spatial resolution, detection rate, accuracy and reliability. (from Authors)

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
PublisherNew York, USA, American Society of Mechanical Engineers; Fluid
ISBN (Print)0791808742, 9780791808740
StatePublished - Jan 1 1991
Externally publishedYes

Fingerprint

Correlation methods
Velocity measurement
Autocorrelation
Flow fields
Detectors

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Keane, R. D., & Adrian, R. (1991). Cross-correlation analysis of particle image fields for velocity measurement. In Unknown Host Publication Title New York, USA, American Society of Mechanical Engineers; Fluid.

Cross-correlation analysis of particle image fields for velocity measurement. / Keane, R. D.; Adrian, Ronald.

Unknown Host Publication Title. New York, USA, American Society of Mechanical Engineers; Fluid, 1991.

Research output: Chapter in Book/Report/Conference proceedingChapter

Keane, RD & Adrian, R 1991, Cross-correlation analysis of particle image fields for velocity measurement. in Unknown Host Publication Title. New York, USA, American Society of Mechanical Engineers; Fluid.
Keane RD, Adrian R. Cross-correlation analysis of particle image fields for velocity measurement. In Unknown Host Publication Title. New York, USA, American Society of Mechanical Engineers; Fluid. 1991
Keane, R. D. ; Adrian, Ronald. / Cross-correlation analysis of particle image fields for velocity measurement. Unknown Host Publication Title. New York, USA, American Society of Mechanical Engineers; Fluid, 1991.
@inbook{6a3dc3feb17d4316a18543e979ef6f57,
title = "Cross-correlation analysis of particle image fields for velocity measurement",
abstract = "In order to improve the performance of particle image velocimetry in measuring instantaneous velocity fields, direct cross- correlation of image fields can be used in place of auto-correlation methods of interrogation of double or multiple exposure recordings. Furthermore with improved technology in high speed photographic recording and increased resolution of video array detectors, cross-correlation methods of interrogation of successive single exposure frames can be used to measure the separation of pairs of particle images between successive frames. By knowing the extent of image shifting used in a multiple exposure and by a priori knowledge of the mean flow-field, the cross-correlation of different sized interrogation spots with known separation can be optimized in terms of spatial resolution, detection rate, accuracy and reliability. (from Authors)",
author = "Keane, {R. D.} and Ronald Adrian",
year = "1991",
month = "1",
day = "1",
language = "English (US)",
isbn = "0791808742",
booktitle = "Unknown Host Publication Title",
publisher = "New York, USA, American Society of Mechanical Engineers; Fluid",

}

TY - CHAP

T1 - Cross-correlation analysis of particle image fields for velocity measurement

AU - Keane, R. D.

AU - Adrian, Ronald

PY - 1991/1/1

Y1 - 1991/1/1

N2 - In order to improve the performance of particle image velocimetry in measuring instantaneous velocity fields, direct cross- correlation of image fields can be used in place of auto-correlation methods of interrogation of double or multiple exposure recordings. Furthermore with improved technology in high speed photographic recording and increased resolution of video array detectors, cross-correlation methods of interrogation of successive single exposure frames can be used to measure the separation of pairs of particle images between successive frames. By knowing the extent of image shifting used in a multiple exposure and by a priori knowledge of the mean flow-field, the cross-correlation of different sized interrogation spots with known separation can be optimized in terms of spatial resolution, detection rate, accuracy and reliability. (from Authors)

AB - In order to improve the performance of particle image velocimetry in measuring instantaneous velocity fields, direct cross- correlation of image fields can be used in place of auto-correlation methods of interrogation of double or multiple exposure recordings. Furthermore with improved technology in high speed photographic recording and increased resolution of video array detectors, cross-correlation methods of interrogation of successive single exposure frames can be used to measure the separation of pairs of particle images between successive frames. By knowing the extent of image shifting used in a multiple exposure and by a priori knowledge of the mean flow-field, the cross-correlation of different sized interrogation spots with known separation can be optimized in terms of spatial resolution, detection rate, accuracy and reliability. (from Authors)

UR - http://www.scopus.com/inward/record.url?scp=85041153619&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85041153619&partnerID=8YFLogxK

M3 - Chapter

AN - SCOPUS:85041153619

SN - 0791808742

SN - 9780791808740

BT - Unknown Host Publication Title

PB - New York, USA, American Society of Mechanical Engineers; Fluid

ER -