Evidence for in-line bubble interactions in non-Newtonian fluids
Identifieur interne : 001F41 ( Main/Exploration ); précédent : 001F40; suivant : 001F42Evidence for in-line bubble interactions in non-Newtonian fluids
Auteurs : H. Z Li [France] ; Y. Mouline [France] ; D. Funfschilling [France] ; P. Marchal [France] ; L. Choplin [France] ; Noël Midoux [France]Source :
- Chemical Engineering Science [ 0009-2509 ] ; 1998.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Simulation.
English descriptors
- KwdEn :
- Birefringence measurements, Bubble, Bubble behaviour, Bubble column, Bubble interactions, Bubble passage, Bubble rise, Bubble rise velocity, Bubble volume, Bubbles, Chaotic bubble coalescence, Coalescence, Comparable viscosity, Consecutive deformations, Dynamical competition, Elsevier science, Experimental study, Flow birefringence, Gas liquid interface, Genie chimique, High value, Image analysis, Injection, Injection period, Injection periods, Light intensity, Mass transfer, Maximum shear rate, Multiphase flow, Nancy cedex, Negative wake, Non-Newtonian fluids, Optical probes, Other hand, Paam, Paam solution, Paam solutions, Particle interactions, Power spectrum, Relaxation time, Residual, Residual stresses, Rheological, Rheological properties, Rheological simulation, Rise velocity, Shear rate, Simulation, Spectral analysis, Square duct, Stress relaxation, Successive bifurcations, Such interactions, System dynamics, Temporal measurements, Terminal sedimentation velocity, Test facilities, Two-phase flow, Uids, Viscous wake, Visualisation method, birefringence, in-line interactions, non-Newtonian fluids, rheological simulation, spectral analysis.
- Teeft :
- Birefringence measurements, Bubble, Bubble behaviour, Bubble interactions, Bubble passage, Bubble rise, Bubble rise velocity, Bubble volume, Chaotic bubble coalescence, Coalescence, Comparable viscosity, Consecutive deformations, Dynamical competition, Elsevier science, Genie chimique, High value, Image analysis, Injection, Injection period, Injection periods, Light intensity, Mass transfer, Maximum shear rate, Multiphase flow, Nancy cedex, Negative wake, Optical probes, Other hand, Paam, Paam solution, Paam solutions, Power spectrum, Relaxation time, Residual, Residual stresses, Rheological, Rheological simulation, Rise velocity, Shear rate, Simulation, Spectral analysis, Square duct, Stress relaxation, Successive bifurcations, Such interactions, System dynamics, Temporal measurements, Terminal sedimentation velocity, Uids, Viscous wake, Visualisation method.
Abstract
Abstract: This work reports a study of in-line bubble interactions in non-Newtonian fluids by varying the injection period between bubbles. The experimental data reveal that the bubble rise velocity depends upon the injection period, obviously due to in-line interactions. The original rheological simulation, based on the close relationship between the rise of a chain of bubbles and consecutive shear deformations, proves for the first time that in-line interactions are mainly governed by a dynamical competition between the creation and relaxation of stresses in fluids. This interaction mechanism is clearly corroborated by a newly developed visualisation method based on birefringence. With the decrease of the injection period, such interactions become strong enough and coalescence occurs. The spectral analysis of the bubble passage at different heights in the column demonstrates that the interactions are no longer linear accompanied by successive bifurcations leading to chaotic coalescence.
Url:
DOI: 10.1016/S0009-2509(98)00048-7
Affiliations:
- France
- Grand Est, Lorraine (région)
- Nancy
- Centre national de la recherche scientifique, Laboratoire réactions et génie des procédés, Université de Lorraine
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Le document en format XML
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xml:lang="en"><term>Birefringence measurements</term><term>Bubble</term><term>Bubble behaviour</term><term>Bubble column</term><term>Bubble interactions</term><term>Bubble passage</term><term>Bubble rise</term><term>Bubble rise velocity</term><term>Bubble volume</term><term>Bubbles</term><term>Chaotic bubble coalescence</term><term>Coalescence</term><term>Comparable viscosity</term><term>Consecutive deformations</term><term>Dynamical competition</term><term>Elsevier science</term><term>Experimental study</term><term>Flow birefringence</term><term>Gas liquid interface</term><term>Genie chimique</term><term>High value</term><term>Image analysis</term><term>Injection</term><term>Injection period</term><term>Injection periods</term><term>Light intensity</term><term>Mass transfer</term><term>Maximum shear rate</term><term>Multiphase flow</term><term>Nancy cedex</term><term>Negative wake</term><term>Non-Newtonian fluids</term><term>Optical probes</term><term>Other hand</term><term>Paam</term><term>Paam solution</term><term>Paam solutions</term><term>Particle interactions</term><term>Power spectrum</term><term>Relaxation time</term><term>Residual</term><term>Residual stresses</term><term>Rheological</term><term>Rheological properties</term><term>Rheological simulation</term><term>Rise velocity</term><term>Shear rate</term><term>Simulation</term><term>Spectral analysis</term><term>Square duct</term><term>Stress relaxation</term><term>Successive bifurcations</term><term>Such interactions</term><term>System dynamics</term><term>Temporal measurements</term><term>Terminal sedimentation velocity</term><term>Test facilities</term><term>Two-phase flow</term><term>Uids</term><term>Viscous wake</term><term>Visualisation method</term><term>birefringence</term><term>in-line interactions</term><term>non-Newtonian fluids</term><term>rheological simulation</term><term>spectral analysis</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>4750</term><term>4755K</term><term>4780</term><term>Analyse spectrale</term><term>Biréfringence écoulement</term><term>Colonne bulle</term><term>Ecoulement diphasique</term><term>Etude expérimentale</term><term>Fluide non newtonien</term><term>Installation essai</term><term>Interaction particule</term><term>Interface gaz liquide</term><term>Propriété rhéologique</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Birefringence measurements</term><term>Bubble</term><term>Bubble behaviour</term><term>Bubble interactions</term><term>Bubble passage</term><term>Bubble rise</term><term>Bubble rise velocity</term><term>Bubble volume</term><term>Chaotic bubble coalescence</term><term>Coalescence</term><term>Comparable viscosity</term><term>Consecutive deformations</term><term>Dynamical competition</term><term>Elsevier science</term><term>Genie chimique</term><term>High value</term><term>Image analysis</term><term>Injection</term><term>Injection period</term><term>Injection periods</term><term>Light intensity</term><term>Mass transfer</term><term>Maximum shear rate</term><term>Multiphase flow</term><term>Nancy cedex</term><term>Negative wake</term><term>Optical probes</term><term>Other hand</term><term>Paam</term><term>Paam solution</term><term>Paam solutions</term><term>Power spectrum</term><term>Relaxation time</term><term>Residual</term><term>Residual stresses</term><term>Rheological</term><term>Rheological simulation</term><term>Rise velocity</term><term>Shear rate</term><term>Simulation</term><term>Spectral analysis</term><term>Square duct</term><term>Stress relaxation</term><term>Successive bifurcations</term><term>Such interactions</term><term>System dynamics</term><term>Temporal measurements</term><term>Terminal sedimentation velocity</term><term>Uids</term><term>Viscous wake</term><term>Visualisation method</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Simulation</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: This work reports a study of in-line bubble interactions in non-Newtonian fluids by varying the injection period between bubbles. The experimental data reveal that the bubble rise velocity depends upon the injection period, obviously due to in-line interactions. The original rheological simulation, based on the close relationship between the rise of a chain of bubbles and consecutive shear deformations, proves for the first time that in-line interactions are mainly governed by a dynamical competition between the creation and relaxation of stresses in fluids. This interaction mechanism is clearly corroborated by a newly developed visualisation method based on birefringence. With the decrease of the injection period, such interactions become strong enough and coalescence occurs. The spectral analysis of the bubble passage at different heights in the column demonstrates that the interactions are no longer linear accompanied by successive bifurcations leading to chaotic coalescence.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Grand Est</li><li>Lorraine (région)</li></region><settlement><li>Nancy</li></settlement><orgName><li>Centre national de la recherche scientifique</li><li>Laboratoire réactions et génie des procédés</li><li>Université de Lorraine</li></orgName></list><tree><country name="France"><region name="Grand Est"><name sortKey="Li, H Z" sort="Li, H Z" uniqKey="Li H" first="H. Z" last="Li">H. Z Li</name></region><name sortKey="Choplin, L" sort="Choplin, L" uniqKey="Choplin L" first="L" last="Choplin">L. Choplin</name><name sortKey="Funfschilling, D" sort="Funfschilling, D" uniqKey="Funfschilling D" first="D" last="Funfschilling">D. Funfschilling</name><name sortKey="Marchal, P" sort="Marchal, P" uniqKey="Marchal P" first="P" last="Marchal">P. Marchal</name><name sortKey="Midoux, N" sort="Midoux, N" uniqKey="Midoux N" first="N" last="Midoux">Noël Midoux</name><name sortKey="Mouline, Y" sort="Mouline, Y" uniqKey="Mouline Y" first="Y" last="Mouline">Y. Mouline</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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