Influence of gas distribution and regime transitions on liquid velocity and turbulence in a 3-D bubble column
Identifieur interne : 000977 ( Istex/Corpus ); précédent : 000976; suivant : 000978Influence of gas distribution and regime transitions on liquid velocity and turbulence in a 3-D bubble column
Auteurs : Ch Vial ; R. Lainé ; S. Poncin ; N. Midoux ; G. WildSource :
- Chemical Engineering Science [ 0009-2509 ] ; 2001.
English descriptors
- KwdEn :
- Axial, Behaviour, Better understanding, Bubble, Bubble column, Bubble columns, Bubble size, Camarasa, Centreline, Centreline turbulence intensity, Centreline velocity, Chemical engineering science, Chemical engineers, Deeper insight, Elsevier science, Experimental results, Flow regime, Gas distributor, Geary, German chemical engineering, Heterogeneous, Heterogeneous conditions, Heterogeneous regime, Homogeneous conditions, Hydrodynamic regime, Hydrodynamics, LDA, Large bubbles, Liquid phase, Liquid velocity, Momentum balance equations, More uniform, Optimised values, Other distributors, Porous plate, Previous results, Radial evolution, Reactor performance, Regime transitions, Reynolds shear stress, Shear stress, Similar trends, Simple model, Sparger, Spargers, Strong anisotropy, Tangential directions, Theoretical velocity, Transition region, Turbulence, Turbulence models, Turbulent viscosity, Velocity values, Velocity vector, Vial, Viscous stress tensor, Wall shear stress.
- Teeft :
- Axial, Behaviour, Better understanding, Bubble, Bubble column, Bubble columns, Bubble size, Camarasa, Centreline, Centreline turbulence intensity, Centreline velocity, Chemical engineering science, Chemical engineers, Deeper insight, Elsevier science, Experimental results, Geary, German chemical engineering, Heterogeneous, Heterogeneous conditions, Heterogeneous regime, Homogeneous conditions, Hydrodynamic regime, Large bubbles, Liquid phase, Liquid velocity, Momentum balance equations, More uniform, Optimised values, Other distributors, Porous plate, Previous results, Radial evolution, Reactor performance, Regime transitions, Reynolds shear stress, Shear stress, Similar trends, Simple model, Sparger, Spargers, Strong anisotropy, Tangential directions, Theoretical velocity, Transition region, Turbulence, Turbulence models, Turbulent viscosity, Velocity values, Velocity vector, Vial, Viscous stress tensor, Wall shear stress.
Abstract
Abstract: Laser Doppler anemometry has been applied to a bubble column equipped successively with three different gas distributors: a single-orifice nozzle, a multiple-orifice sparger and a porous plate. Axial and tangential mean and rms liquid velocity values have been measured up to a gas hold-up of 15–20%. A simple analytical model based on a bubble-induced turbulence is shown to be consistent with the results obtained with the three spargers and is used to estimate the Reynolds shear stress. The evolution of the local hydrodynamic parameters of the liquid phase with UG is explained and related to the hydrodynamic regime, the uniformity of the gas distribution and the start-up procedure.
Url:
DOI: 10.1016/S0009-2509(00)00325-0
Links to Exploration step
ISTEX:275345C20CC9F759B76EC486319A7E5A5E479C17Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Influence of gas distribution and regime transitions on liquid velocity and turbulence in a 3-D bubble column</title><author><name sortKey="Vial, Ch" sort="Vial, Ch" uniqKey="Vial C" first="Ch" last="Vial">Ch Vial</name><affiliation><mods:affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Laine, R" sort="Laine, R" uniqKey="Laine R" first="R" last="Lainé">R. Lainé</name><affiliation><mods:affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Poncin, S" sort="Poncin, S" uniqKey="Poncin S" first="S" last="Poncin">S. Poncin</name><affiliation><mods:affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</mods:affiliation></affiliation><affiliation><mods:affiliation>E-mail: souhila@ensic.inpl-nancy.fr</mods:affiliation></affiliation></author><author><name sortKey="Midoux, N" sort="Midoux, N" uniqKey="Midoux N" first="N" last="Midoux">N. Midoux</name><affiliation><mods:affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Wild, G" sort="Wild, G" uniqKey="Wild G" first="G" last="Wild">G. Wild</name><affiliation><mods:affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:275345C20CC9F759B76EC486319A7E5A5E479C17</idno><date when="2001" year="2001">2001</date><idno type="doi">10.1016/S0009-2509(00)00325-0</idno><idno type="url">https://api.istex.fr/document/275345C20CC9F759B76EC486319A7E5A5E479C17/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000977</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000977</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Influence of gas distribution and regime transitions on liquid velocity and turbulence in a 3-D bubble column</title><author><name sortKey="Vial, Ch" sort="Vial, Ch" uniqKey="Vial C" first="Ch" last="Vial">Ch Vial</name><affiliation><mods:affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Laine, R" sort="Laine, R" uniqKey="Laine R" first="R" last="Lainé">R. Lainé</name><affiliation><mods:affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Poncin, S" sort="Poncin, S" uniqKey="Poncin S" first="S" last="Poncin">S. Poncin</name><affiliation><mods:affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</mods:affiliation></affiliation><affiliation><mods:affiliation>E-mail: souhila@ensic.inpl-nancy.fr</mods:affiliation></affiliation></author><author><name sortKey="Midoux, N" sort="Midoux, N" uniqKey="Midoux N" first="N" last="Midoux">N. Midoux</name><affiliation><mods:affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Wild, G" sort="Wild, G" uniqKey="Wild G" first="G" last="Wild">G. Wild</name><affiliation><mods:affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Chemical Engineering Science</title><title level="j" type="abbrev">CES</title><idno type="ISSN">0009-2509</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2001">2001</date><biblScope unit="volume">56</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="1085">1085</biblScope><biblScope unit="page" to="1093">1093</biblScope></imprint><idno type="ISSN">0009-2509</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0009-2509</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Axial</term><term>Behaviour</term><term>Better understanding</term><term>Bubble</term><term>Bubble column</term><term>Bubble columns</term><term>Bubble size</term><term>Camarasa</term><term>Centreline</term><term>Centreline turbulence intensity</term><term>Centreline velocity</term><term>Chemical engineering science</term><term>Chemical engineers</term><term>Deeper insight</term><term>Elsevier science</term><term>Experimental results</term><term>Flow regime</term><term>Gas distributor</term><term>Geary</term><term>German chemical engineering</term><term>Heterogeneous</term><term>Heterogeneous conditions</term><term>Heterogeneous regime</term><term>Homogeneous conditions</term><term>Hydrodynamic regime</term><term>Hydrodynamics</term><term>LDA</term><term>Large bubbles</term><term>Liquid phase</term><term>Liquid velocity</term><term>Momentum balance equations</term><term>More uniform</term><term>Optimised values</term><term>Other distributors</term><term>Porous plate</term><term>Previous results</term><term>Radial evolution</term><term>Reactor performance</term><term>Regime transitions</term><term>Reynolds shear stress</term><term>Shear stress</term><term>Similar trends</term><term>Simple model</term><term>Sparger</term><term>Spargers</term><term>Strong anisotropy</term><term>Tangential directions</term><term>Theoretical velocity</term><term>Transition region</term><term>Turbulence</term><term>Turbulence models</term><term>Turbulent viscosity</term><term>Velocity values</term><term>Velocity vector</term><term>Vial</term><term>Viscous stress tensor</term><term>Wall shear stress</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Axial</term><term>Behaviour</term><term>Better understanding</term><term>Bubble</term><term>Bubble column</term><term>Bubble columns</term><term>Bubble size</term><term>Camarasa</term><term>Centreline</term><term>Centreline turbulence intensity</term><term>Centreline velocity</term><term>Chemical engineering science</term><term>Chemical engineers</term><term>Deeper insight</term><term>Elsevier science</term><term>Experimental results</term><term>Geary</term><term>German chemical engineering</term><term>Heterogeneous</term><term>Heterogeneous conditions</term><term>Heterogeneous regime</term><term>Homogeneous conditions</term><term>Hydrodynamic regime</term><term>Large bubbles</term><term>Liquid phase</term><term>Liquid velocity</term><term>Momentum balance equations</term><term>More uniform</term><term>Optimised values</term><term>Other distributors</term><term>Porous plate</term><term>Previous results</term><term>Radial evolution</term><term>Reactor performance</term><term>Regime transitions</term><term>Reynolds shear stress</term><term>Shear stress</term><term>Similar trends</term><term>Simple model</term><term>Sparger</term><term>Spargers</term><term>Strong anisotropy</term><term>Tangential directions</term><term>Theoretical velocity</term><term>Transition region</term><term>Turbulence</term><term>Turbulence models</term><term>Turbulent viscosity</term><term>Velocity values</term><term>Velocity vector</term><term>Vial</term><term>Viscous stress tensor</term><term>Wall shear stress</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Laser Doppler anemometry has been applied to a bubble column equipped successively with three different gas distributors: a single-orifice nozzle, a multiple-orifice sparger and a porous plate. Axial and tangential mean and rms liquid velocity values have been measured up to a gas hold-up of 15–20%. A simple analytical model based on a bubble-induced turbulence is shown to be consistent with the results obtained with the three spargers and is used to estimate the Reynolds shear stress. The evolution of the local hydrodynamic parameters of the liquid phase with UG is explained and related to the hydrodynamic regime, the uniformity of the gas distribution and the start-up procedure.</div></front></TEI><istex><corpusName>elsevier</corpusName><keywords><teeft><json:string>spargers</json:string><json:string>chemical engineering science</json:string><json:string>bubble columns</json:string><json:string>bubble column</json:string><json:string>vial</json:string><json:string>sparger</json:string><json:string>heterogeneous regime</json:string><json:string>porous plate</json:string><json:string>experimental results</json:string><json:string>transition region</json:string><json:string>camarasa</json:string><json:string>radial evolution</json:string><json:string>centreline</json:string><json:string>liquid phase</json:string><json:string>liquid velocity</json:string><json:string>previous results</json:string><json:string>velocity values</json:string><json:string>heterogeneous conditions</json:string><json:string>reynolds shear stress</json:string><json:string>axial</json:string><json:string>optimised values</json:string><json:string>shear stress</json:string><json:string>turbulence models</json:string><json:string>turbulence</json:string><json:string>geary</json:string><json:string>theoretical velocity</json:string><json:string>large bubbles</json:string><json:string>centreline velocity</json:string><json:string>wall shear stress</json:string><json:string>better understanding</json:string><json:string>turbulent viscosity</json:string><json:string>heterogeneous</json:string><json:string>bubble</json:string><json:string>german chemical engineering</json:string><json:string>similar trends</json:string><json:string>chemical engineers</json:string><json:string>tangential directions</json:string><json:string>regime transitions</json:string><json:string>simple model</json:string><json:string>momentum balance equations</json:string><json:string>velocity vector</json:string><json:string>viscous stress tensor</json:string><json:string>hydrodynamic regime</json:string><json:string>elsevier science</json:string><json:string>reactor performance</json:string><json:string>more uniform</json:string><json:string>deeper insight</json:string><json:string>centreline turbulence intensity</json:string><json:string>other distributors</json:string><json:string>bubble size</json:string><json:string>strong anisotropy</json:string><json:string>homogeneous conditions</json:string><json:string>behaviour</json:string></teeft></keywords><author><json:item><name>Ch Vial</name><affiliations><json:string>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</json:string></affiliations></json:item><json:item><name>R Lainé</name><affiliations><json:string>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</json:string></affiliations></json:item><json:item><name>S Poncin</name><affiliations><json:string>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</json:string><json:string>E-mail: souhila@ensic.inpl-nancy.fr</json:string></affiliations></json:item><json:item><name>N Midoux</name><affiliations><json:string>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</json:string></affiliations></json:item><json:item><name>G Wild</name><affiliations><json:string>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Bubble column</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Flow regime</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Gas distributor</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Hydrodynamics</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>LDA</value></json:item></subject><articleId><json:string>3521</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>Laser Doppler anemometry has been applied to a bubble column equipped successively with three different gas distributors: a single-orifice nozzle, a multiple-orifice sparger and a porous plate. Axial and tangential mean and rms liquid velocity values have been measured up to a gas hold-up of 15–20%. A simple analytical model based on a bubble-induced turbulence is shown to be consistent with the results obtained with the three spargers and is used to estimate the Reynolds shear stress. The evolution of the local hydrodynamic parameters of the liquid phase with UG is explained and related to the hydrodynamic regime, the uniformity of the gas distribution and the start-up procedure.</abstract><qualityIndicators><score>5.715</score><pdfVersion>1.2</pdfVersion><pdfPageSize>596 x 795 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>5</keywordCount><abstractCharCount>689</abstractCharCount><pdfWordCount>4419</pdfWordCount><pdfCharCount>25589</pdfCharCount><pdfPageCount>9</pdfPageCount><abstractWordCount>108</abstractWordCount></qualityIndicators><title>Influence of gas distribution and regime transitions on liquid velocity and turbulence in a 3-D bubble column</title><pii><json:string>S0009-2509(00)00325-0</json:string></pii><genre><json:string>research-article</json:string></genre><host><title>Chemical Engineering Science</title><language><json:string>unknown</json:string></language><publicationDate>2001</publicationDate><issn><json:string>0009-2509</json:string></issn><pii><json:string>S0009-2509(00)X0145-5</json:string></pii><volume>56</volume><issue>3</issue><pages><first>1085</first><last>1093</last></pages><genre><json:string>journal</json:string></genre><conference><json:item><name>16th International Conference on Chemical Reactor Engineering, Cracow, Poland ISCRE16 Part II 20000910</name></json:item></conference></host><categories><wos><json:string>science</json:string><json:string>engineering, chemical</json:string></wos><scienceMetrix><json:string>applied sciences</json:string><json:string>engineering</json:string><json:string>chemical engineering</json:string></scienceMetrix><inist><json:string>sciences appliquees, technologies et medecines</json:string><json:string>sciences exactes et technologie</json:string><json:string>terre, ocean, espace</json:string><json:string>sciences de la terre</json:string></inist></categories><publicationDate>2001</publicationDate><copyrightDate>2001</copyrightDate><doi><json:string>10.1016/S0009-2509(00)00325-0</json:string></doi><id>275345C20CC9F759B76EC486319A7E5A5E479C17</id><score>1</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/275345C20CC9F759B76EC486319A7E5A5E479C17/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/275345C20CC9F759B76EC486319A7E5A5E479C17/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/275345C20CC9F759B76EC486319A7E5A5E479C17/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Influence of gas distribution and regime transitions on liquid velocity and turbulence in a 3-D bubble column</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>©2001 Elsevier Science Ltd</p></availability><date>2001</date></publicationStmt><notesStmt><note type="content">Fig. 1: Different types of gas sparger used.</note><note type="content">Fig. 2: LDA data rates at different gas flow rates and radial positions with and without seeding.</note><note type="content">Fig. 3: Influence of gas distributor and gas flow rate on flow pattern (Hom.=HomogeneousHet.=Heterogeneous).</note><note type="content">Fig. 4: Evolution of the optimised values of the exponent m (Eq. 1).</note><note type="content">Fig. 5: Radial evolution of the mean axial liquid velocity component with UG.</note><note type="content">Fig. 6: Radial evolution of the rms liquid with UG.</note><note type="content">Fig. 7: Evolution of the liquid centreline velocity vC with UG for the three spargers.</note><note type="content">Fig. 8: Evolution of the centreline turbulence intensity IC with UG for the three spargers.</note><note type="content">Fig. 9: Radial evolution of the rms liquid with UG using the multiple-orifice distributor.</note><note type="content">Fig. 10: Theoretical velocity profile in a bubble column.</note><note type="content">Fig. 11: Comparison of experiments and theoretical velocity profiles.</note><note type="content">Fig. 12: Evolution of the optimized averaged mixing length 〈lm〉 with UG and the three spargers.</note><note type="content">Fig. 13: Evolution of τw with UG for the three spargers.</note><note type="content">Fig. 14: Radial evolution of the Reynolds shear stress with UG for the columns equipped with the porous plate.</note><note type="content">Fig. 15: Evolution of τw with UG for the three spargers.</note><note type="content">Table 1: Turbulence models compared in this work</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Influence of gas distribution and regime transitions on liquid velocity and turbulence in a 3-D bubble column</title><author xml:id="author-0000"><persName><forename type="first">Ch</forename><surname>Vial</surname></persName><affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</affiliation></author><author xml:id="author-0001"><persName><forename type="first">R</forename><surname>Lainé</surname></persName><affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</affiliation></author><author xml:id="author-0002"><persName><forename type="first">S</forename><surname>Poncin</surname></persName><email>souhila@ensic.inpl-nancy.fr</email><note type="correspondence"><p>Corresponding author. Tel.: +3-83-175223; fax: +3-83-322975</p></note><affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</affiliation></author><author xml:id="author-0003"><persName><forename type="first">N</forename><surname>Midoux</surname></persName><affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</affiliation></author><author xml:id="author-0004"><persName><forename type="first">G</forename><surname>Wild</surname></persName><affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</affiliation></author><idno type="istex">275345C20CC9F759B76EC486319A7E5A5E479C17</idno><idno type="DOI">10.1016/S0009-2509(00)00325-0</idno><idno type="PII">S0009-2509(00)00325-0</idno><idno type="ArticleID">3521</idno></analytic><monogr><title level="j">Chemical Engineering Science</title><title level="j" type="abbrev">CES</title><idno type="pISSN">0009-2509</idno><idno type="PII">S0009-2509(00)X0145-5</idno><meeting><addName>16th International Conference on Chemical Reactor Engineering, Cracow, Poland</addName><addName>ISCRE16 Part II</addName><date>20000910</date></meeting><imprint><publisher>ELSEVIER</publisher><date type="published" when="2001"></date><biblScope unit="volume">56</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="1085">1085</biblScope><biblScope unit="page" to="1093">1093</biblScope></imprint></monogr></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2001</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Laser Doppler anemometry has been applied to a bubble column equipped successively with three different gas distributors: a single-orifice nozzle, a multiple-orifice sparger and a porous plate. Axial and tangential mean and rms liquid velocity values have been measured up to a gas hold-up of 15–20%. A simple analytical model based on a bubble-induced turbulence is shown to be consistent with the results obtained with the three spargers and is used to estimate the Reynolds shear stress. The evolution of the local hydrodynamic parameters of the liquid phase with UG is explained and related to the hydrodynamic regime, the uniformity of the gas distribution and the start-up procedure.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>Keywords</head><item><term>Bubble column</term></item><item><term>Flow regime</term></item><item><term>Gas distributor</term></item><item><term>Hydrodynamics</term></item><item><term>LDA</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2001">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/275345C20CC9F759B76EC486319A7E5A5E479C17/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: ce:floats; body; tail"><istex:xmlDeclaration>version="1.0" encoding="UTF-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"><istex:entity SYSTEM="gr1" NDATA="IMAGE" name="gr1"></istex:entity><istex:entity SYSTEM="gr2" NDATA="IMAGE" name="gr2"></istex:entity><istex:entity SYSTEM="gr3" NDATA="IMAGE" name="gr3"></istex:entity><istex:entity SYSTEM="gr4" NDATA="IMAGE" name="gr4"></istex:entity><istex:entity SYSTEM="gr5" NDATA="IMAGE" name="gr5"></istex:entity><istex:entity SYSTEM="gr6" NDATA="IMAGE" name="gr6"></istex:entity><istex:entity SYSTEM="gr7" NDATA="IMAGE" name="gr7"></istex:entity><istex:entity SYSTEM="gr8" NDATA="IMAGE" name="gr8"></istex:entity><istex:entity SYSTEM="gr9" NDATA="IMAGE" name="gr9"></istex:entity><istex:entity SYSTEM="gr10" NDATA="IMAGE" name="gr10"></istex:entity><istex:entity SYSTEM="gr11" NDATA="IMAGE" name="gr11"></istex:entity><istex:entity SYSTEM="gr12" NDATA="IMAGE" name="gr12"></istex:entity><istex:entity SYSTEM="gr13" NDATA="IMAGE" name="gr13"></istex:entity><istex:entity SYSTEM="gr14" NDATA="IMAGE" name="gr14"></istex:entity><istex:entity SYSTEM="gr15" NDATA="IMAGE" name="gr15"></istex:entity></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla" xml:lang="en"><item-info><jid>CES</jid><aid>3521</aid><ce:pii>S0009-2509(00)00325-0</ce:pii><ce:doi>10.1016/S0009-2509(00)00325-0</ce:doi><ce:copyright type="full-transfer" year="2001">Elsevier Science Ltd</ce:copyright></item-info><head><ce:title>Influence of gas distribution and regime transitions on liquid velocity and turbulence in a 3-D bubble column</ce:title><ce:author-group><ce:author><ce:given-name>Ch</ce:given-name><ce:surname>Vial</ce:surname></ce:author><ce:author><ce:given-name>R</ce:given-name><ce:surname>Lainé</ce:surname></ce:author><ce:author><ce:given-name>S</ce:given-name><ce:surname>Poncin</ce:surname><ce:cross-ref refid="CORR1">*</ce:cross-ref><ce:e-address type="email">souhila@ensic.inpl-nancy.fr</ce:e-address></ce:author><ce:author><ce:given-name>N</ce:given-name><ce:surname>Midoux</ce:surname></ce:author><ce:author><ce:given-name>G</ce:given-name><ce:surname>Wild</ce:surname></ce:author><ce:affiliation><ce:textfn>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</ce:textfn></ce:affiliation><ce:correspondence id="CORR1"><ce:label>*</ce:label><ce:text>Corresponding author. Tel.: +3-83-175223; fax: +3-83-322975</ce:text></ce:correspondence></ce:author-group><ce:abstract class="author"><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para view="all" id="simple-para.0090">Laser Doppler anemometry has been applied to a bubble column equipped successively with three different gas distributors: a single-orifice nozzle, a multiple-orifice sparger and a porous plate. Axial and tangential mean and rms liquid velocity values have been measured up to a gas hold-up of 15–20%. A simple analytical model based on a bubble-induced turbulence is shown to be consistent with the results obtained with the three spargers and is used to estimate the Reynolds shear stress. The evolution of the local hydrodynamic parameters of the liquid phase with <ce:italic>U</ce:italic><ce:inf loc="post"><ce:italic>G</ce:italic></ce:inf> is explained and related to the hydrodynamic regime, the uniformity of the gas distribution and the start-up procedure.</ce:simple-para></ce:abstract-sec></ce:abstract><ce:keywords class="keyword"><ce:section-title>Keywords</ce:section-title><ce:keyword><ce:text>Bubble column</ce:text></ce:keyword><ce:keyword><ce:text>Flow regime</ce:text></ce:keyword><ce:keyword><ce:text>Gas distributor</ce:text></ce:keyword><ce:keyword><ce:text>Hydrodynamics</ce:text></ce:keyword><ce:keyword><ce:text>LDA</ce:text></ce:keyword></ce:keywords></head></converted-article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Influence of gas distribution and regime transitions on liquid velocity and turbulence in a 3-D bubble column</title></titleInfo><titleInfo type="alternative" lang="en" contentType="CDATA"><title>Influence of gas distribution and regime transitions on liquid velocity and turbulence in a 3-D bubble column</title></titleInfo><name type="personal"><namePart type="given">Ch</namePart><namePart type="family">Vial</namePart><affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">R</namePart><namePart type="family">Lainé</namePart><affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">S</namePart><namePart type="family">Poncin</namePart><affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</affiliation><affiliation>E-mail: souhila@ensic.inpl-nancy.fr</affiliation><description>Corresponding author. Tel.: +3-83-175223; fax: +3-83-322975</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">N</namePart><namePart type="family">Midoux</namePart><affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">G</namePart><namePart type="family">Wild</namePart><affiliation>Laboratoire des Sciences du Génie Chimique CNRS-ENSIC-INPL, 1, rue Grandville BP 451, F-54001 Nancy Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length 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>ELSEVIER</publisher><dateIssued encoding="w3cdtf">2001</dateIssued><copyrightDate encoding="w3cdtf">2001</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><abstract lang="en">Abstract: Laser Doppler anemometry has been applied to a bubble column equipped successively with three different gas distributors: a single-orifice nozzle, a multiple-orifice sparger and a porous plate. Axial and tangential mean and rms liquid velocity values have been measured up to a gas hold-up of 15–20%. A simple analytical model based on a bubble-induced turbulence is shown to be consistent with the results obtained with the three spargers and is used to estimate the Reynolds shear stress. The evolution of the local hydrodynamic parameters of the liquid phase with UG is explained and related to the hydrodynamic regime, the uniformity of the gas distribution and the start-up procedure.</abstract><note type="content">Fig. 1: Different types of gas sparger used.</note><note type="content">Fig. 2: LDA data rates at different gas flow rates and radial positions with and without seeding.</note><note type="content">Fig. 3: Influence of gas distributor and gas flow rate on flow pattern (Hom.=HomogeneousHet.=Heterogeneous).</note><note type="content">Fig. 4: Evolution of the optimised values of the exponent m (Eq. 1).</note><note type="content">Fig. 5: Radial evolution of the mean axial liquid velocity component with UG.</note><note type="content">Fig. 6: Radial evolution of the rms liquid with UG.</note><note type="content">Fig. 7: Evolution of the liquid centreline velocity vC with UG for the three spargers.</note><note type="content">Fig. 8: Evolution of the centreline turbulence intensity IC with UG for the three spargers.</note><note type="content">Fig. 9: Radial evolution of the rms liquid with UG using the multiple-orifice distributor.</note><note type="content">Fig. 10: Theoretical velocity profile in a bubble column.</note><note type="content">Fig. 11: Comparison of experiments and theoretical velocity profiles.</note><note type="content">Fig. 12: Evolution of the optimized averaged mixing length 〈lm〉 with UG and the three spargers.</note><note type="content">Fig. 13: Evolution of τw with UG for the three spargers.</note><note type="content">Fig. 14: Radial evolution of the Reynolds shear stress with UG for the columns equipped with the porous plate.</note><note type="content">Fig. 15: Evolution of τw with UG for the three spargers.</note><note type="content">Table 1: Turbulence models compared in this work</note><subject lang="en"><genre>Keywords</genre><topic>Bubble column</topic><topic>Flow regime</topic><topic>Gas distributor</topic><topic>Hydrodynamics</topic><topic>LDA</topic></subject><relatedItem type="host"><titleInfo><title>Chemical Engineering Science</title></titleInfo><titleInfo type="abbreviated"><title>CES</title></titleInfo><name type="conference"><namePart>16th International Conference on Chemical Reactor Engineering, Cracow, Poland</namePart><namePart>ISCRE16 Part II</namePart><namePart type="date">20000910</namePart></name><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><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">200102</dateIssued></originInfo><identifier type="ISSN">0009-2509</identifier><identifier type="PII">S0009-2509(00)X0145-5</identifier><part><date>200102</date><detail type="issue"><title>16th International Conference on Chemical Reactor Engineering, Cracow, Poland</title></detail><detail type="volume"><number>56</number><caption>vol.</caption></detail><detail type="issue"><number>3</number><caption>no.</caption></detail><extent unit="issue-pages"><start>727</start><end>1210</end></extent><extent unit="pages"><start>1085</start><end>1093</end></extent></part></relatedItem><identifier type="istex">275345C20CC9F759B76EC486319A7E5A5E479C17</identifier><identifier type="ark">ark:/67375/6H6-1V8XJCCF-M</identifier><identifier type="DOI">10.1016/S0009-2509(00)00325-0</identifier><identifier type="PII">S0009-2509(00)00325-0</identifier><identifier type="ArticleID">3521</identifier><accessCondition type="use and reproduction" contentType="copyright">©2001 Elsevier Science Ltd</accessCondition><recordInfo><recordContentSource authority="ISTEX" authorityURI="https://loaded-corpus.data.istex.fr" valueURI="https://loaded-corpus.data.istex.fr/ark:/67375/XBH-HKKZVM7B-M">elsevier</recordContentSource><recordOrigin>Elsevier Science Ltd, ©2001</recordOrigin></recordInfo></mods><json:item><extension>json</extension><original>false</original><mimetype>application/json</mimetype><uri>https://api.istex.fr/document/275345C20CC9F759B76EC486319A7E5A5E479C17/metadata/json</uri></json:item></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Lorraine/explor/LrgpV1/Data/Istex/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000977 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Istex/Corpus/biblio.hfd -nk 000977 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Lorraine
|area= LrgpV1
|flux= Istex
|étape= Corpus
|type= RBID
|clé= ISTEX:275345C20CC9F759B76EC486319A7E5A5E479C17
|texte= Influence of gas distribution and regime transitions on liquid velocity and turbulence in a 3-D bubble column
}}
| This area was generated with Dilib version V0.6.32. |  |