Steady inlet flow in stenotic geometries: convective and absolute instabilities
Identifieur interne : 002975 ( Istex/Corpus ); précédent : 002974; suivant : 002976Steady inlet flow in stenotic geometries: convective and absolute instabilities
Auteurs : M. D. Griffith ; T. Leweke ; M. C. Thompson ; K. HouriganSource :
- Journal of Fluid Mechanics [ 0022-1120 ] ; 2008.
Abstract
Steady inlet flow through a circular tube with an axisymmetric blockage of varying size is studied both numerically and experimentally. The geometry consists of a long, straight tube and a blockage, semicircular in cross-section, serving as a simplified model of an arterial stenosis. The stenosis is characterized by a single parameter, the aim being to highlight fundamental behaviours of constricted flows, in terms of the total blockage. The Reynolds number is varied between 50 and 2500 and the stenosis degree by area between 0.20 and 0.95. Numerically, a spectral-element code is used to obtain the axisymmetric base flow fields, while experimentally, results are obtained for a similar set of geometries, using water as the working fluid. At low Reynolds numbers, the flow is steady and characterized by a jet flow emanating from the contraction, surrounded by an axisymmetric recirculation zone. The effect of a variation in blockage size on the onset and mode of instability is investigated. Linear stability analysis is performed on the simulated axisymmetric base flows, in addition to an analysis of the instability, seemingly convective in nature, observed in the experimental flows. This transition at higher Reynolds numbers to a time-dependent state, characterized by unsteadiness downstream of the blockage, is studied in conjunction with an investigation of the response of steady lower Reynolds number flows to periodic forcing.
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DOI: 10.1017/S0022112008004084
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Griffith</name><affiliation><mods:affiliation>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</mods:affiliation></affiliation><affiliation><mods:affiliation>Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), CNRS/Universités Aix-Marseille, 49 rue Frédéric Joliot-Curie, BP 146, F-13384 Marseille Cedex 13, France</mods:affiliation></affiliation><affiliation><mods:affiliation>E-mail: martin.griffith@eng.monash.edu.au</mods:affiliation></affiliation></author><author><name sortKey="Leweke, T" sort="Leweke, T" uniqKey="Leweke T" first="T." last="Leweke">T. Leweke</name><affiliation><mods:affiliation>Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), CNRS/Universités Aix-Marseille, 49 rue Frédéric Joliot-Curie, BP 146, F-13384 Marseille Cedex 13, France</mods:affiliation></affiliation></author><author><name sortKey="Thompson, M C" sort="Thompson, M C" uniqKey="Thompson M" first="M. C." last="Thompson">M. C. Thompson</name><affiliation><mods:affiliation>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</mods:affiliation></affiliation></author><author><name sortKey="Hourigan, K" sort="Hourigan, K" uniqKey="Hourigan K" first="K." last="Hourigan">K. Hourigan</name><affiliation><mods:affiliation>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:DF264D3FCB4215D0D40D9B1226D91541E4A1C57A</idno><date when="2008" year="2008">2008</date><idno type="doi">10.1017/S0022112008004084</idno><idno type="url">https://api.istex.fr/document/DF264D3FCB4215D0D40D9B1226D91541E4A1C57A/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">002975</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">002975</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Steady inlet flow in stenotic geometries: convective and absolute instabilities</title><author><name sortKey="Griffith, M D" sort="Griffith, M D" uniqKey="Griffith M" first="M. D." last="Griffith">M. D. Griffith</name><affiliation><mods:affiliation>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</mods:affiliation></affiliation><affiliation><mods:affiliation>Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), CNRS/Universités Aix-Marseille, 49 rue Frédéric Joliot-Curie, BP 146, F-13384 Marseille Cedex 13, France</mods:affiliation></affiliation><affiliation><mods:affiliation>E-mail: martin.griffith@eng.monash.edu.au</mods:affiliation></affiliation></author><author><name sortKey="Leweke, T" sort="Leweke, T" uniqKey="Leweke T" first="T." last="Leweke">T. Leweke</name><affiliation><mods:affiliation>Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), CNRS/Universités Aix-Marseille, 49 rue Frédéric Joliot-Curie, BP 146, F-13384 Marseille Cedex 13, France</mods:affiliation></affiliation></author><author><name sortKey="Thompson, M C" sort="Thompson, M C" uniqKey="Thompson M" first="M. C." last="Thompson">M. C. Thompson</name><affiliation><mods:affiliation>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</mods:affiliation></affiliation></author><author><name sortKey="Hourigan, K" sort="Hourigan, K" uniqKey="Hourigan K" first="K." last="Hourigan">K. Hourigan</name><affiliation><mods:affiliation>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Fluid Mechanics</title><title level="j" type="abbrev">J. Fluid Mech.</title><idno type="ISSN">0022-1120</idno><idno type="eISSN">1469-7645</idno><imprint><publisher>Cambridge University Press</publisher><pubPlace>Cambridge, UK</pubPlace><date type="published" when="2008">2008</date><biblScope unit="volume">616</biblScope><biblScope unit="page" from="111">111</biblScope><biblScope unit="page" to="133">133</biblScope></imprint><idno type="ISSN">0022-1120</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-1120</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Steady inlet flow through a circular tube with an axisymmetric blockage of varying size is studied both numerically and experimentally. The geometry consists of a long, straight tube and a blockage, semicircular in cross-section, serving as a simplified model of an arterial stenosis. The stenosis is characterized by a single parameter, the aim being to highlight fundamental behaviours of constricted flows, in terms of the total blockage. The Reynolds number is varied between 50 and 2500 and the stenosis degree by area between 0.20 and 0.95. Numerically, a spectral-element code is used to obtain the axisymmetric base flow fields, while experimentally, results are obtained for a similar set of geometries, using water as the working fluid. At low Reynolds numbers, the flow is steady and characterized by a jet flow emanating from the contraction, surrounded by an axisymmetric recirculation zone. The effect of a variation in blockage size on the onset and mode of instability is investigated. Linear stability analysis is performed on the simulated axisymmetric base flows, in addition to an analysis of the instability, seemingly convective in nature, observed in the experimental flows. This transition at higher Reynolds numbers to a time-dependent state, characterized by unsteadiness downstream of the blockage, is studied in conjunction with an investigation of the response of steady lower Reynolds number flows to periodic forcing.</div></front></TEI><istex><corpusName>cambridge</corpusName><author><json:item><name>M. D. GRIFFITH</name><affiliations><json:string>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</json:string><json:string>Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), CNRS/Universités Aix-Marseille, 49 rue Frédéric Joliot-Curie, BP 146, F-13384 Marseille Cedex 13, France</json:string><json:string>E-mail: martin.griffith@eng.monash.edu.au</json:string></affiliations></json:item><json:item><name>T. LEWEKE</name><affiliations><json:string>Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), CNRS/Universités Aix-Marseille, 49 rue Frédéric Joliot-Curie, BP 146, F-13384 Marseille Cedex 13, France</json:string></affiliations></json:item><json:item><name>M. C. THOMPSON</name><affiliations><json:string>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</json:string></affiliations></json:item><json:item><name>K. 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The Reynolds number is varied between 50 and 2500 and the stenosis degree by area between 0.20 and 0.95. Numerically, a spectral-element code is used to obtain the axisymmetric base flow fields, while experimentally, results are obtained for a similar set of geometries, using water as the working fluid. At low Reynolds numbers, the flow is steady and characterized by a jet flow emanating from the contraction, surrounded by an axisymmetric recirculation zone. The effect of a variation in blockage size on the onset and mode of instability is investigated. Linear stability analysis is performed on the simulated axisymmetric base flows, in addition to an analysis of the instability, seemingly convective in nature, observed in the experimental flows. 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D.</forename><surname>GRIFFITH</surname></persName><email>martin.griffith@eng.monash.edu.au</email><affiliation>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</affiliation><affiliation>Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), CNRS/Universités Aix-Marseille, 49 rue Frédéric Joliot-Curie, BP 146, F-13384 Marseille Cedex 13, France</affiliation></author><author xml:id="author-0001"><persName><forename type="first">T.</forename><surname>LEWEKE</surname></persName><affiliation>Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), CNRS/Universités Aix-Marseille, 49 rue Frédéric Joliot-Curie, BP 146, F-13384 Marseille Cedex 13, France</affiliation></author><author xml:id="author-0002"><persName><forename type="first">M. C.</forename><surname>THOMPSON</surname></persName><affiliation>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</affiliation></author><author xml:id="author-0003"><persName><forename type="first">K.</forename><surname>HOURIGAN</surname></persName><affiliation>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</affiliation></author><idno type="istex">DF264D3FCB4215D0D40D9B1226D91541E4A1C57A</idno><idno type="ark">ark:/67375/6GQ-JLZ8ZGG7-J</idno><idno type="DOI">10.1017/S0022112008004084</idno><idno type="PII">S0022112008004084</idno><idno type="article-id">00408</idno></analytic><monogr><title level="j">Journal of Fluid Mechanics</title><title level="j" type="abbrev">J. Fluid Mech.</title><idno type="pISSN">0022-1120</idno><idno type="eISSN">1469-7645</idno><idno type="publisher-id">FLM</idno><imprint><publisher>Cambridge University Press</publisher><pubPlace>Cambridge, UK</pubPlace><date type="published" when="2008"></date><biblScope unit="volume">616</biblScope><biblScope unit="page" from="111">111</biblScope><biblScope unit="page" to="133">133</biblScope></imprint></monogr></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2008</date></creation><langUsage><language ident="en">en</language></langUsage><abstract style="normal"><p>Steady inlet flow through a circular tube with an axisymmetric blockage of varying size is studied both numerically and experimentally. The geometry consists of a long, straight tube and a blockage, semicircular in cross-section, serving as a simplified model of an arterial stenosis. The stenosis is characterized by a single parameter, the aim being to highlight fundamental behaviours of constricted flows, in terms of the total blockage. The Reynolds number is varied between 50 and 2500 and the stenosis degree by area between 0.20 and 0.95. Numerically, a spectral-element code is used to obtain the axisymmetric base flow fields, while experimentally, results are obtained for a similar set of geometries, using water as the working fluid. At low Reynolds numbers, the flow is steady and characterized by a jet flow emanating from the contraction, surrounded by an axisymmetric recirculation zone. The effect of a variation in blockage size on the onset and mode of instability is investigated. Linear stability analysis is performed on the simulated axisymmetric base flows, in addition to an analysis of the instability, seemingly convective in nature, observed in the experimental flows. This transition at higher Reynolds numbers to a time-dependent state, characterized by unsteadiness downstream of the blockage, is studied in conjunction with an investigation of the response of steady lower Reynolds number flows to periodic forcing.</p></abstract></profileDesc><revisionDesc><change when="2008">Published</change></revisionDesc></teiHeader></istex:fulltextTEI></fulltext><metadata><istex:metadataXml wicri:clean="corpus cambridge not found" wicri:toSee="no header"><istex:xmlDeclaration>version="1.0" encoding="US-ASCII"</istex:xmlDeclaration><istex:docType PUBLIC="-//NLM//DTD Journal Publishing DTD v2.2 20060430//EN" URI="journalpublishing.dtd" name="istex:docType"></istex:docType><istex:document><article dtd-version="2.2" article-type="research-article"><front><journal-meta><journal-id journal-id-type="publisher-id">FLM</journal-id><journal-title>Journal of Fluid Mechanics</journal-title><abbrev-journal-title>J. Fluid Mech.</abbrev-journal-title><issn pub-type="ppub">0022-1120</issn><issn pub-type="epub">1469-7645</issn><publisher><publisher-name>Cambridge University Press</publisher-name><publisher-loc>Cambridge, UK</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.1017/S0022112008004084</article-id><article-id pub-id-type="pii">S0022112008004084</article-id><article-id pub-id-type="publisher-id">00408</article-id><title-group><article-title>Steady inlet flow in stenotic geometries: convective and absolute instabilities</article-title><alt-title alt-title-type="right-running">Steady inlet flow through stenotic geometries</alt-title><alt-title alt-title-type="left-running">M. D. Griffith, T. Leweke, M. C. Thompson and K. Hourigan</alt-title></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name><surname>GRIFFITH</surname><given-names>M. D.</given-names></name><xref ref-type="aff" rid="aff001"><sup>1</sup></xref><xref ref-type="aff" rid="aff002"><sup>2</sup></xref><xref ref-type="corresp" rid="cor001">†</xref></contrib><contrib contrib-type="author"><name><surname>LEWEKE</surname><given-names>T.</given-names></name><xref ref-type="aff" rid="aff002"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>THOMPSON</surname><given-names>M. C.</given-names></name><xref ref-type="aff" rid="aff001"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>HOURIGAN</surname><given-names>K.</given-names></name><xref ref-type="aff" rid="aff001"><sup>1</sup></xref></contrib></contrib-group><aff id="aff001"><label><sup>1</sup></label><addr-line>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR)</addr-line>, <addr-line>Department of Mechanical and Aerospace Engineering & Division of Biological Engineering</addr-line>, <institution>Monash University</institution>, <addr-line>Melbourne</addr-line>, <addr-line>Victoria 3800</addr-line>, <country>Australia</country></aff><aff id="aff002"><label><sup>2</sup></label><addr-line>Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE)</addr-line>, <institution>CNRS/Universités Aix-Marseille</institution>, <addr-line>49 rue Frédéric Joliot-Curie</addr-line>, <addr-line>BP 146</addr-line>, <addr-line>F-13384 Marseille Cedex 13</addr-line>, <country>France</country></aff><author-notes><corresp id="cor001"><label>†</label>Email address for correspondence: <email xlink:href="martin.griffith@eng.monash.edu.au">martin.griffith@eng.monash.edu.au</email></corresp></author-notes><pub-date pub-type="epub-ppub"><day>10</day><month>12</month><year>2008</year></pub-date><volume>616</volume><fpage>111</fpage><lpage>133</lpage><history><date date-type="received"><day>15</day><month>10</month><year>2007</year></date><date date-type="rev-recd"><day>01</day><month>09</month><year>2008</year></date></history><permissions><copyright-statement>Copyright © Cambridge University Press 2008</copyright-statement><copyright-year>2008</copyright-year><copyright-holder>Cambridge University Press</copyright-holder></permissions><abstract abstract-type="normal"><p>Steady inlet flow through a circular tube with an axisymmetric blockage of varying size is studied both numerically and experimentally. The geometry consists of a long, straight tube and a blockage, semicircular in cross-section, serving as a simplified model of an arterial stenosis. The stenosis is characterized by a single parameter, the aim being to highlight fundamental behaviours of constricted flows, in terms of the total blockage. The Reynolds number is varied between 50 and 2500 and the stenosis degree by area between 0.20 and 0.95. Numerically, a spectral-element code is used to obtain the axisymmetric base flow fields, while experimentally, results are obtained for a similar set of geometries, using water as the working fluid. At low Reynolds numbers, the flow is steady and characterized by a jet flow emanating from the contraction, surrounded by an axisymmetric recirculation zone. The effect of a variation in blockage size on the onset and mode of instability is investigated. Linear stability analysis is performed on the simulated axisymmetric base flows, in addition to an analysis of the instability, seemingly convective in nature, observed in the experimental flows. This transition at higher Reynolds numbers to a time-dependent state, characterized by unsteadiness downstream of the blockage, is studied in conjunction with an investigation of the response of steady lower Reynolds number flows to periodic forcing.</p></abstract><counts><page-count count="23"></page-count></counts><custom-meta-wrap><custom-meta><meta-name>pdf</meta-name><meta-value>S0022112008004084a.pdf</meta-value></custom-meta><custom-meta><meta-name>dispart</meta-name><meta-value>Papers</meta-value></custom-meta></custom-meta-wrap></article-meta></front><back><ref-list><title>REFERENCES</title><ref><citation citation-type="journal" id="ref1"><name><surname>Ahmed</surname><given-names>S. 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D.</namePart><namePart type="family">GRIFFITH</namePart><affiliation>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</affiliation><affiliation>Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), CNRS/Universités Aix-Marseille, 49 rue Frédéric Joliot-Curie, BP 146, F-13384 Marseille Cedex 13, France</affiliation><affiliation>E-mail: martin.griffith@eng.monash.edu.au</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">T.</namePart><namePart type="family">LEWEKE</namePart><affiliation>Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), CNRS/Universités Aix-Marseille, 49 rue Frédéric Joliot-Curie, BP 146, F-13384 Marseille Cedex 13, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">M. C.</namePart><namePart type="family">THOMPSON</namePart><affiliation>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">K.</namePart><namePart type="family">HOURIGAN</namePart><affiliation>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering & Division of Biological Engineering, Monash University, Melbourne, Victoria 3800, Australia</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="research-article" authority="ISTEX" authorityURI="https://content-type.data.istex.fr" valueURI="https://content-type.data.istex.fr/ark:/67375/XTP-1JC4F85T-7">research-article</genre><originInfo><publisher>Cambridge University Press</publisher><place><placeTerm type="text">Cambridge, UK</placeTerm></place><dateIssued encoding="w3cdtf">2008</dateIssued><copyrightDate encoding="w3cdtf">2008</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><abstract type="normal">Steady inlet flow through a circular tube with an axisymmetric blockage of varying size is studied both numerically and experimentally. The geometry consists of a long, straight tube and a blockage, semicircular in cross-section, serving as a simplified model of an arterial stenosis. The stenosis is characterized by a single parameter, the aim being to highlight fundamental behaviours of constricted flows, in terms of the total blockage. The Reynolds number is varied between 50 and 2500 and the stenosis degree by area between 0.20 and 0.95. Numerically, a spectral-element code is used to obtain the axisymmetric base flow fields, while experimentally, results are obtained for a similar set of geometries, using water as the working fluid. At low Reynolds numbers, the flow is steady and characterized by a jet flow emanating from the contraction, surrounded by an axisymmetric recirculation zone. The effect of a variation in blockage size on the onset and mode of instability is investigated. Linear stability analysis is performed on the simulated axisymmetric base flows, in addition to an analysis of the instability, seemingly convective in nature, observed in the experimental flows. This transition at higher Reynolds numbers to a time-dependent state, characterized by unsteadiness downstream of the blockage, is studied in conjunction with an investigation of the response of steady lower Reynolds number flows to periodic forcing.</abstract><relatedItem type="host"><titleInfo><title>Journal of Fluid Mechanics</title></titleInfo><titleInfo type="abbreviated"><title>J. Fluid Mech.</title></titleInfo><genre type="journal" authority="ISTEX" authorityURI="https://publication-type.data.istex.fr" valueURI="https://publication-type.data.istex.fr/ark:/67375/JMC-0GLKJH51-B">journal</genre><identifier type="ISSN">0022-1120</identifier><identifier type="eISSN">1469-7645</identifier><identifier type="PublisherID">FLM</identifier><part><date>2008</date><detail type="volume"><caption>vol.</caption><number>616</number></detail><extent unit="pages"><start>111</start><end>133</end><total>23</total></extent></part></relatedItem><identifier type="istex">DF264D3FCB4215D0D40D9B1226D91541E4A1C57A</identifier><identifier type="ark">ark:/67375/6GQ-JLZ8ZGG7-J</identifier><identifier type="DOI">10.1017/S0022112008004084</identifier><identifier type="PII">S0022112008004084</identifier><identifier type="ArticleID">00408</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © Cambridge University Press 2008</accessCondition><recordInfo><recordContentSource authority="ISTEX" authorityURI="https://loaded-corpus.data.istex.fr" valueURI="https://loaded-corpus.data.istex.fr/ark:/67375/XBH-G3RCRD03-V">cambridge</recordContentSource><recordOrigin>Copyright © Cambridge University Press 2008</recordOrigin></recordInfo></mods><json:item><extension>json</extension><original>false</original><mimetype>application/json</mimetype><uri>https://api.istex.fr/document/DF264D3FCB4215D0D40D9B1226D91541E4A1C57A/metadata/json</uri></json:item></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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