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An extended study of a generalized digital particle image velocimetry (DPIV) processing technique

Duncan, J. and Bryce, T. and Thomsen, H. and Dabiri, D. and Hove, J. R. and Gharib, M. (2009) An extended study of a generalized digital particle image velocimetry (DPIV) processing technique. Measurement Science and Technology, 20 (7). Art. No. 075401. ISSN 0957-0233. https://resolver.caltech.edu/CaltechAUTHORS:20130918-141757079

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Abstract

A generalized cross-correlation particle image velocimetry (PIV) method capable of providing direct estimates of fluid velocity, vorticity and in-plane shear rates has been introduced and described by Mayer (2000 Exp. Fluids 33 443–57). While being useful, this generalized image deformation-based PIV (herein referred to as GIDPIV) method has not been deeply investigated. Toward this end, this paper examines the influence of window radii, particle diameter, seeding density, weighting functions and interpolation algorithms on the accuracy of this GIDPIV. Synthetic images representing uniform flow and an Oseen vortex flow, along with an experimental image set, are used to assess the performance results via investigation of random, bias and total errors.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/0957-0233/20/7/075401 DOIUNSPECIFIED
http://iopscience.iop.org/0957-0233/20/7/075401/PublisherUNSPECIFIED
http://iopscience.iop.org/0957-0233/20/10/109801/ErrataUNSPECIFIED
Additional Information:© 2009 IOP Publishing Ltd. Received 7 August 2008, in final form 29 April 2009. Published 5 June 2009. The authors gratefully acknowledge the support of the National Institutes of Health (R01 RR023190-04 to JRH, DD and MG).
Group:GALCIT
Funders:
Funding AgencyGrant Number
NIHR01 RR023190-04
Subject Keywords:PIV, optimization, interpolation, weighting window, image deformation
Issue or Number:7
Classification Code:PACS: 47.80.Cb; 47.32.C-
Record Number:CaltechAUTHORS:20130918-141757079
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130918-141757079
Official Citation:An extended study of a generalized digital particle image velocimetry (DPIV) processing technique J Duncan et al 2009 Meas. Sci. Technol. 20 075401
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41396
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Sep 2013 22:15
Last Modified:03 Oct 2019 05:48

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