About: Droplet dynamics in internally mixed twin-fluid spray

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Effervescent atomizers are based on mixing of gas with liquid prior to discharge. We describe the discharge of two-phase mixture and movement of droplets in gas jet using simple theoretical models, following with elucidation of droplets dynamics using experimental data for an effervescent spray. Discharge of the liquid-gas flow from the nozzle is described using a combination of two discharge models. Depending on operation conditions, 59–64% of the total discharged mass corresponds to Separated Flow Model and the rest to Homogeneous Flow Model. Discharge velocity of the liquid reaches 12–27% of the gas exit velocity. The liquid-gas velocity ratio is negatively correlated with gas-to-liquid mass ratio (GLR) and positively correlated with inlet pressure. Radial profiles of axial droplet velocity, as measured using Phase Doppler anemometry, are axisymmetric bell-shaped with a maximum in the centreline analogous to the profile defined for a simple gas jet which however is more flat near the centreline Effervescent atomizers are based on mixing of gas with liquid prior to discharge. We describe the discharge of two-phase mixture and movement of droplets in gas jet using simple theoretical models, following with elucidation of droplets dynamics using experimental data for an effervescent spray. Discharge of the liquid-gas flow from the nozzle is described using a combination of two discharge models. Depending on operation conditions, 59–64% of the total discharged mass corresponds to Separated Flow Model and the rest to Homogeneous Flow Model. Discharge velocity of the liquid reaches 12–27% of the gas exit velocity. The liquid-gas velocity ratio is negatively correlated with gas-to-liquid mass ratio (GLR) and positively correlated with inlet pressure. Radial profiles of axial droplet velocity, as measured using Phase Doppler anemometry, are axisymmetric bell-shaped with a maximum in the centreline analogous to the profile defined for a simple gas jet which however is more flat near the centreline (en)
Title	Droplet dynamics in internally mixed twin-fluid spray Droplet dynamics in internally mixed twin-fluid spray (en)
skos:prefLabel	Droplet dynamics in internally mixed twin-fluid spray Droplet dynamics in internally mixed twin-fluid spray (en)
skos:notation	RIV/00216305:26210/13:PU106949!RIV14-GA0-26210___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP101/11/1264)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Jícha, Miroslav Jedelský, Jan
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta strojního inženýrství
http://linked.open...dnocenehoVysledku	70604
http://linked.open...ai/riv/idVysledku	RIV/00216305:26210/13:PU106949
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	droplet dynamics, internally mixed twin-fluid atomization, effervescent atomization, spray structure, dispersed two-phase flow. (en)
http://linked.open.../riv/klicoveSlovo	dispersed two-phase flow. droplet dynamics internally mixed twin-fluid atomization effervescent atomization spray structure
http://linked.open...ontrolniKodProRIV	[84C16765E46D]
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Atomization characteristics of twin-fluid internally mixed atomizers operated at low pressure with liquids with wide range of viscosity
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Jedelský, Jan Jícha, Miroslav
http://localhost/t...ganizacniJednotka	26210

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