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Application of particle image velocimetry to combusting flows: Design considerations and uncertainty assessment

Stella, A. and Guj, G. and Kompenhans, Jürgen and Raffel, Markus and Richard, Hugues (2001) Application of particle image velocimetry to combusting flows: Design considerations and uncertainty assessment. Experiments in Fluids, Vol. 30 (2), pp. 167-180. Springer-Verlag Berlin, Heidelberg. DOI: 10.1007/s003480000151. ISSN 0723-4864 (Print) 1432-1114 (Online).

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Official URL: http://www.springerlink.com/content/vdmvq4vxvecq5gq6/?p=37b0e5b0ee264b329c0f6568a8b7b8dc&pi=0

Abstract

Methodological aspects concerning the application of the PIV technique to the study of turbulent flames are discussed in this paper. The physical features of the flow, which have implications for the experimental set-up, image processing ans measurement accuracy are identified. Design considerations are developed focusing on several factors: Spatial resolution, particle performance, seeding technique, image formation and recording, and image post-processing for the evaluation of the displacement. Relevant uncertainty concerns are related to the effect of the thermophoretic force, acting on a seeding particle while crossing the flame front, and to the non-homogeneity and time-dependence of the refractive index field. The uncertainty due to thermophoresis is assessed by numerically studying the motion of a particle crossing a reference temperature profile. The effect of the refractive index variation is evaluated by means of theoretical analysis of light propagation and image formation, supported by experimental tests designed for this special purpose.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2001,
Title:Application of particle image velocimetry to combusting flows: Design considerations and uncertainty assessment
Authors:
AuthorsInstitution or Email of Authors
Stella, A.University of Rome, La Sapienza, it
Guj, G.University of Rome, Tre, it
Kompenhans, JürgenUNSPECIFIED
Raffel, MarkusUNSPECIFIED
Richard, HuguesUNSPECIFIED
Date:2001
Journal or Publication Title:Experiments in Fluids
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:Vol. 30
DOI:10.1007/s003480000151
Page Range:pp. 167-180
Publisher:Springer-Verlag Berlin, Heidelberg
ISSN:0723-4864 (Print) 1432-1114 (Online)
Status:Published
Keywords:PIV technique, flame front, refractive index, particle
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 21:01

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