About: Characterisation of Liquid Slugs in Gas-Liquid Taylor Flow in Microchannels

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The hydrodynamics of liquid slugs in gas-liquid Taylor flow in straight and meandering microchannels have been studied using micro Particle Image Velocimetry. The results confirm a recirculation motion in the liquid slug, which is symmetrical about the center line of the channel for the straight geometry and more complex and three dimensional in the meandering channel. An attempt has also been made to quantify and characterize this recirculation motion by evaluating the recirculation rate, velocity and time. The recirculation velocity was found to increase linearly with the two-phase superficial velocity UTP. The recirculation time decreases towards a plateau with increasing UTP and is linearly dependent on the microchannel residence time and the time needed for a slug to move its own length. These results suggest that the transport efficiencies are independent of the fluid flow rates studied and are constant for a given microchannel geometry. The hydrodynamics of liquid slugs in gas-liquid Taylor flow in straight and meandering microchannels have been studied using micro Particle Image Velocimetry. The results confirm a recirculation motion in the liquid slug, which is symmetrical about the center line of the channel for the straight geometry and more complex and three dimensional in the meandering channel. An attempt has also been made to quantify and characterize this recirculation motion by evaluating the recirculation rate, velocity and time. The recirculation velocity was found to increase linearly with the two-phase superficial velocity UTP. The recirculation time decreases towards a plateau with increasing UTP and is linearly dependent on the microchannel residence time and the time needed for a slug to move its own length. These results suggest that the transport efficiencies are independent of the fluid flow rates studied and are constant for a given microchannel geometry. (en)
Title	Characterisation of Liquid Slugs in Gas-Liquid Taylor Flow in Microchannels Characterisation of Liquid Slugs in Gas-Liquid Taylor Flow in Microchannels (en)
skos:prefLabel	Characterisation of Liquid Slugs in Gas-Liquid Taylor Flow in Microchannels Characterisation of Liquid Slugs in Gas-Liquid Taylor Flow in Microchannels (en)
skos:notation	RIV/67985858:_____/12:00377294!RIV15-AV0-67985858
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z40720504)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Jiřičný, Vladimír Křišťál, Jiří Záloha, Petr
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	126773
http://linked.open...ai/riv/idVysledku	RIV/67985858:_____/12:00377294
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	gas-liquid; micro-piv; microreactor (en)
http://linked.open.../riv/klicoveSlovo	micro-piv gas-liquid microreactor
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[F947B9ECA6F2]
http://linked.open...i/riv/nazevZdroje	Chemical Engineering Science
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...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	68
http://linked.open...iv/tvurceVysledku	Jiřičný, Vladimír Křišťál, Jiří Aubin, J. Völkel, N. Xuereb, C. Záloha, Petr
http://linked.open...ain/vavai/riv/wos	000296876400056
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	0009-2509
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.ces.2011.10.036

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