About: Mathematical modeling of segmented flow in microchannels

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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 multiphase flow, where reaction-transport processes are limited by diffusion, is involved in many industrially important chemical processes. Microreactors based on multiphase flow have emerged in the last few years. More recently, the attention focuses on immiscible liquid-liquid systems at microscale, where intensification of reactions is achieved by segmentation of the fluids. Vortex flow patterns within the fluid segments enhance mixing and improve mass transfer across the interface. Here we present a mathematical model of a representative part of the microfluidic channel with two liquid phases. In case that the reaction is not accompanied with a substantial change of the volume of liquid phases, the problem can be split into a hydrodynamic part and a reaction-transport part. Mathematical description of the hydrodynamic problem is based on the Navier-Stokes equation or the Stokes equation and the continuity equation for each liquid phase together with relevant boundary conditions. The periodic boundary conditions can be applied at the inlet and outlet boundaries and moving microchannel walls are considered. The obtained velocity and pressure fields enable to study mixing processes inside droplets. The multiphase flow, where reaction-transport processes are limited by diffusion, is involved in many industrially important chemical processes. Microreactors based on multiphase flow have emerged in the last few years. More recently, the attention focuses on immiscible liquid-liquid systems at microscale, where intensification of reactions is achieved by segmentation of the fluids. Vortex flow patterns within the fluid segments enhance mixing and improve mass transfer across the interface. Here we present a mathematical model of a representative part of the microfluidic channel with two liquid phases. In case that the reaction is not accompanied with a substantial change of the volume of liquid phases, the problem can be split into a hydrodynamic part and a reaction-transport part. Mathematical description of the hydrodynamic problem is based on the Navier-Stokes equation or the Stokes equation and the continuity equation for each liquid phase together with relevant boundary conditions. The periodic boundary conditions can be applied at the inlet and outlet boundaries and moving microchannel walls are considered. The obtained velocity and pressure fields enable to study mixing processes inside droplets. (en)
Title	Mathematical modeling of segmented flow in microchannels Mathematical modeling of segmented flow in microchannels (en)
skos:prefLabel	Mathematical modeling of segmented flow in microchannels Mathematical modeling of segmented flow in microchannels (en)
skos:notation	RIV/60461373:22340/12:43893658!RIV13-MSM-22340___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Přibyl, Michal Nebyla, Marek Červenka, Petr Hrdlička, Jiří
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	148727
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/12:43893658
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	immiscible liquids; microchannel; microreactor; segmented flow; mathematical model (en)
http://linked.open.../riv/klicoveSlovo	segmented flow microchannel mathematical model immiscible liquids microreactor
http://linked.open...ontrolniKodProRIV	[5C8E26AD0404]
http://linked.open...v/mistoKonaniAkce	Tatranské Matliare
http://linked.open...i/riv/mistoVydani	Bratislava
http://linked.open...i/riv/nazevZdroje	39th International Conference of Slovak Society of Chemical Engineering
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Nebyla, Marek Přibyl, Michal Červenka, Petr Hrdlička, Jiří
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2012-05-21 (xsd:date)
number of pages	5 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Slovak Society of Chemical Engineering
https://schema.org/isbn	978-80-89475-04-9
http://localhost/t...ganizacniJednotka	22340

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