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Particle image velocimetry. A new computationally efficient method for decoding of PIV images and investigation of hardware realisations

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Abstract

A new method for processing PIV (particle image velocimetry) images is proposed. The expected performance of the method implicates the possibility of a real-time PIV processing instrument powered with (pulsed) laser diodes. The method is based on projection of local areas in the PIV image so that the correlations can be performed with a one-dimensional correlator. The signal-to-noise ratio calculations for both the two-dimensional case and the projection case are calculated and compared. Simulation of the processing principle is performed under varying experimental conditions. (au) (1 tab., 15 ills., 3 refs.)
Authors:
Publication Date:
Nov 01, 1993
Product Type:
Technical Report
Report Number:
RISO-R-717(EN)
Reference Number:
SCA: 440600; 420400; PA: DK-94:001024; EDB-94:032280; NTS-94:010278; ERA-19:010209; SN: 94001144654
Resource Relation:
Other Information: PBD: Nov 1993
Subject:
47 OTHER INSTRUMENTATION; 42 ENGINEERING; VELOCIMETERS; CORRELATION FUNCTIONS; COMPUTERIZED SIMULATION; FLOW VISUALIZATION; IMAGES; MEASURING METHODS; ONE-DIMENSIONAL CALCULATIONS; PARTICLES; TWO-DIMENSIONAL CALCULATIONS; VELOCITY; 440600; 420400; OPTICAL INSTRUMENTATION; HEAT TRANSFER AND FLUID FLOW
OSTI ID:
10123058
Research Organizations:
Risoe National Lab., Roskilde (Denmark). Optics and Fluid Dynamics Dept.
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: ON: DE94740125; ISBN 87-550-1939-0; TRN: DK9401024
Availability:
OSTI; NTIS; Also available from Risoe Library, P.O. Box 49, DK-4000 Roskilde, Denmark
Submitting Site:
DK
Size:
39 p.
Announcement Date:
Jun 30, 2005

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Citation Formats

Skov Jensen, A. Particle image velocimetry. A new computationally efficient method for decoding of PIV images and investigation of hardware realisations. Denmark: N. p., 1993. Web.
Skov Jensen, A. Particle image velocimetry. A new computationally efficient method for decoding of PIV images and investigation of hardware realisations. Denmark.
Skov Jensen, A. 1993. "Particle image velocimetry. A new computationally efficient method for decoding of PIV images and investigation of hardware realisations." Denmark.
@misc{etde_10123058,
title = {Particle image velocimetry. A new computationally efficient method for decoding of PIV images and investigation of hardware realisations}
 author = {Skov Jensen, A}
 abstractNote = {A new method for processing PIV (particle image velocimetry) images is proposed. The expected performance of the method implicates the possibility of a real-time PIV processing instrument powered with (pulsed) laser diodes. The method is based on projection of local areas in the PIV image so that the correlations can be performed with a one-dimensional correlator. The signal-to-noise ratio calculations for both the two-dimensional case and the projection case are calculated and compared. Simulation of the processing principle is performed under varying experimental conditions. (au) (1 tab., 15 ills., 3 refs.)}
 place = {Denmark}
 year = {1993}
 month = {Nov}
 }