Bubble dynamics in turbulent duct flows: lattice-boltzmann simulations and drop tower experiments

Lattice-Boltzmann simulations of a turbulent duct flow have been carried out to obtain trajectories of passive tracers in the conditions of a series of microgravity experiments of turbulent bubble suspensions. The statistics of these passive tracers are compared to the corresponding measurements for...

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Authors: Bitlloch Puigvert, Pau, Ruiz, Xavier, Ramírez Piscina, Laureano, Casademunt i Viader, Jaume
Format: article
Status:Versión aceptada para publicación
Publication Date:2018
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/142783
Online Access:https://hdl.handle.net/2445/142783
Access Level:Open access
Keyword:Ambients de microgravetat
Física de partícules
Reduced gravity environments
Particle physics
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spelling Bubble dynamics in turbulent duct flows: lattice-boltzmann simulations and drop tower experimentsBitlloch Puigvert, PauRuiz, XavierRamírez Piscina, LaureanoCasademunt i Viader, JaumeAmbients de microgravetatFísica de partículesReduced gravity environmentsParticle physicsLattice-Boltzmann simulations of a turbulent duct flow have been carried out to obtain trajectories of passive tracers in the conditions of a series of microgravity experiments of turbulent bubble suspensions. The statistics of these passive tracers are compared to the corresponding measurements for single-bubble and bubble-pair statistics obtained from particle tracking techniques after the high-speed camera recordings from drop-towers experiments. In the conditions of the present experiments, comparisons indicate that experimental results on bubble velocity fluctuations are not consistent with simulations of passive tracers, which points in the direction of an active role of bubbles. The present analysis illustrates the utility of a recently introduced experimental setup to generate controlled turbulent bubble suspensions in microgravity.Springer Verlag2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/142783Articles publicats en revistes (Física de la Matèria Condensada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: https://doi.org/10.1007/s12217-018-9634-5Microgravity Science and Technology, 2018, vol. 30, num. 4, p. 525-534https://doi.org/10.1007/s12217-018-9634-5(c) Springer Verlag, 2018info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1427832026-05-27T06:46:51Z
dc.title.none.fl_str_mv Bubble dynamics in turbulent duct flows: lattice-boltzmann simulations and drop tower experiments
title Bubble dynamics in turbulent duct flows: lattice-boltzmann simulations and drop tower experiments
spellingShingle Bubble dynamics in turbulent duct flows: lattice-boltzmann simulations and drop tower experiments
Bitlloch Puigvert, Pau
Ambients de microgravetat
Física de partícules
Reduced gravity environments
Particle physics
title_short Bubble dynamics in turbulent duct flows: lattice-boltzmann simulations and drop tower experiments
title_full Bubble dynamics in turbulent duct flows: lattice-boltzmann simulations and drop tower experiments
title_fullStr Bubble dynamics in turbulent duct flows: lattice-boltzmann simulations and drop tower experiments
title_full_unstemmed Bubble dynamics in turbulent duct flows: lattice-boltzmann simulations and drop tower experiments
title_sort Bubble dynamics in turbulent duct flows: lattice-boltzmann simulations and drop tower experiments
dc.creator.none.fl_str_mv Bitlloch Puigvert, Pau
Ruiz, Xavier
Ramírez Piscina, Laureano
Casademunt i Viader, Jaume
author Bitlloch Puigvert, Pau
author_facet Bitlloch Puigvert, Pau
Ruiz, Xavier
Ramírez Piscina, Laureano
Casademunt i Viader, Jaume
author_role author
author2 Ruiz, Xavier
Ramírez Piscina, Laureano
Casademunt i Viader, Jaume
author2_role author
author
author
dc.subject.none.fl_str_mv Ambients de microgravetat
Física de partícules
Reduced gravity environments
Particle physics
topic Ambients de microgravetat
Física de partícules
Reduced gravity environments
Particle physics
description Lattice-Boltzmann simulations of a turbulent duct flow have been carried out to obtain trajectories of passive tracers in the conditions of a series of microgravity experiments of turbulent bubble suspensions. The statistics of these passive tracers are compared to the corresponding measurements for single-bubble and bubble-pair statistics obtained from particle tracking techniques after the high-speed camera recordings from drop-towers experiments. In the conditions of the present experiments, comparisons indicate that experimental results on bubble velocity fluctuations are not consistent with simulations of passive tracers, which points in the direction of an active role of bubbles. The present analysis illustrates the utility of a recently introduced experimental setup to generate controlled turbulent bubble suspensions in microgravity.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/142783
url https://hdl.handle.net/2445/142783
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1007/s12217-018-9634-5
Microgravity Science and Technology, 2018, vol. 30, num. 4, p. 525-534
https://doi.org/10.1007/s12217-018-9634-5
dc.rights.none.fl_str_mv (c) Springer Verlag, 2018
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Springer Verlag, 2018
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Verlag
publisher.none.fl_str_mv Springer Verlag
dc.source.none.fl_str_mv Articles publicats en revistes (Física de la Matèria Condensada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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