An enhanced HPIV configuration for flow measurement through thick distorting windows
Identifieur interne : 001507 ( Main/Merge ); précédent : 001506; suivant : 001508An enhanced HPIV configuration for flow measurement through thick distorting windows
Auteurs : R D Alcock [Royaume-Uni] ; C P Garner [Royaume-Uni] ; N A Halliwell [Royaume-Uni] ; J M Coupland [Royaume-Uni]Source :
- Measurement Science and Technology [ 0957-0233 ] ; 2004.
Abstract
This paper reports on a new holographic particle image velocimetry configuration and analysis procedure that can be used to measure particle displacement through thick distorting windows. The technique builds upon the scanning fibre probe based object conjugate reconstruction geometry; however it avoids the requirement of using a holographic optical element to correct for window distortion of the beams. Removal of the distortion is instead accomplished by using a ray trace mapping between the wave vectors scattered by the particles at the time of each exposure and those measured by the interrogation system. The technique is ideally suited to the study of flow structure within the combustion chamber of a diesel engine, and preliminary experimental results that attempt to assess the accuracy of the technique in this situation are presented.
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DOI: 10.1088/0957-0233/15/4/004
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Sci. Technol.</title><idno type="ISSN">0957-0233</idno><idno type="eISSN">1361-6501</idno><imprint><publisher>Institute of Physics Publishing</publisher><date type="published" when="2004">2004</date><biblScope unit="volume">15</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="631">631</biblScope><biblScope unit="page" to="638">638</biblScope><biblScope unit="production">Printed in the UK</biblScope></imprint><idno type="ISSN">0957-0233</idno></series><idno type="istex">0E55D563F327F1316CDDF98E4415656ABF7AC90E</idno><idno type="DOI">10.1088/0957-0233/15/4/004</idno><idno type="PII">S0957-0233(04)66429-0</idno><idno type="articleID">166429</idno><idno type="articleNumber">004</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0957-0233</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">This paper reports on a new holographic particle image velocimetry configuration and analysis procedure that can be used to measure particle displacement through thick distorting windows. The technique builds upon the scanning fibre probe based object conjugate reconstruction geometry; however it avoids the requirement of using a holographic optical element to correct for window distortion of the beams. Removal of the distortion is instead accomplished by using a ray trace mapping between the wave vectors scattered by the particles at the time of each exposure and those measured by the interrogation system. The technique is ideally suited to the study of flow structure within the combustion chamber of a diesel engine, and preliminary experimental results that attempt to assess the accuracy of the technique in this situation are presented.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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