About: Measurement Accuracy of a Mono-fiber Optical Probe in a Bubbly Flow

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The measurement accuracy of a mono-fiber optical probe is studied experimentally using isolated bubbles rising freely in a still liquid. The dwell time of the probe tip within the gas phase, which is obtained from both the optical probe signal and high-speed visualization, is compared with the dwell time expected for a non-perturbed bubble. The measurement error results mainly from the intrusive nature of the optical probe, which modifies the behavior of the bubble when it comes into contact with the probe tip. The measured dwell time therefore differs from its ideal value that would be found with an unperturbed bubble. For a wetting liquid, the interaction increases the dwell time if the bubble is pierced near its pole, and shortens it for piercing near the equator. It is shown that the error can be correlated with a modified Weber number, and this correlation is helpful for sensor selection and for uncertainty estimate. The measurement accuracy of a mono-fiber optical probe is studied experimentally using isolated bubbles rising freely in a still liquid. The dwell time of the probe tip within the gas phase, which is obtained from both the optical probe signal and high-speed visualization, is compared with the dwell time expected for a non-perturbed bubble. The measurement error results mainly from the intrusive nature of the optical probe, which modifies the behavior of the bubble when it comes into contact with the probe tip. The measured dwell time therefore differs from its ideal value that would be found with an unperturbed bubble. For a wetting liquid, the interaction increases the dwell time if the bubble is pierced near its pole, and shortens it for piercing near the equator. It is shown that the error can be correlated with a modified Weber number, and this correlation is helpful for sensor selection and for uncertainty estimate. (en)
Title	Measurement Accuracy of a Mono-fiber Optical Probe in a Bubbly Flow Measurement Accuracy of a Mono-fiber Optical Probe in a Bubbly Flow (en)
skos:prefLabel	Measurement Accuracy of a Mono-fiber Optical Probe in a Bubbly Flow Measurement Accuracy of a Mono-fiber Optical Probe in a Bubbly Flow (en)
skos:notation	RIV/67985858:_____/10:00343074!RIV11-GA0-67985858
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA104/07/1110), P(GP104/06/P287), P(IAA200720801), Z(AV0Z40720504)
http://linked.open...iv/cisloPeriodika	7
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Růžička, Marek Orvalho, Sandra Petronilho Vejražka, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav chemických procesů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	269980
http://linked.open...ai/riv/idVysledku	RIV/67985858:_____/10:00343074
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	optical probe; bubble-fiber interaction; void fraction (en)
http://linked.open.../riv/klicoveSlovo	optical probe bubble-fiber interaction void fraction
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[FC5FA3BF85E8]
http://linked.open...i/riv/nazevZdroje	International Journal of Multiphase Flow
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Analysis of hydrodynamic forces acting on bubbles by PIV measurements Hydrodynamics and transport phenomena in multiphase systems: from microscale to macroscale Effect of bubble size on stability of homogeneous bubbly layer
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	36
http://linked.open...iv/tvurceVysledku	Růžička, Marek Večeř, M. Orvalho, Sandra Petronilho Vejražka, Jiří Cartellier, A. Sechet, Ph.
http://linked.open...ain/vavai/riv/wos	000278693800002
http://linked.open...n/vavai/riv/zamer	Investigation of multiphase reacting systems for the design of processes important in synthesis and preparation of novel materials, in energy production and in environmental protection
issn	0301-9322
number of pages	16 (xsd:int)

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