Numerical investigation of the evaporation of two-component droplets

Strotos, G; Gavaises, M; Theodorakakos, A; Bergeles, G

dc.contributor.author	Strotos, G	en
dc.contributor.author	Gavaises, M	en
dc.contributor.author	Theodorakakos, A	en
dc.contributor.author	Bergeles, G	en
dc.date.accessioned	2014-03-01T01:36:31Z
dc.date.available	2014-03-01T01:36:31Z
dc.date.issued	2011	en
dc.identifier.issn	0016-2361	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21320
dc.subject	Droplet evaporation	en
dc.subject	Multi-component evaporation	en
dc.subject	Suspended droplet	en
dc.subject	VOF	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Concentration equations	en
dc.subject.other	Concentration fields	en
dc.subject.other	Convective flow	en
dc.subject.other	Deformation process	en
dc.subject.other	Droplet evaporation	en
dc.subject.other	Equilibrium positions	en
dc.subject.other	Experimental data	en
dc.subject.other	Gaseous phasis	en
dc.subject.other	Hot air	en
dc.subject.other	Hydrocarbon liquids	en
dc.subject.other	Local grid refinement	en
dc.subject.other	Multicomponents	en
dc.subject.other	N-decane	en
dc.subject.other	n-Heptanes	en
dc.subject.other	Numerical investigations	en
dc.subject.other	Numerical models	en
dc.subject.other	Parametric study	en
dc.subject.other	Phase changes	en
dc.subject.other	Small diameter pipe	en
dc.subject.other	Surface temperatures	en
dc.subject.other	Suspended droplet	en
dc.subject.other	Transport process	en
dc.subject.other	Two-component	en
dc.subject.other	Vaporization rate	en
dc.subject.other	VOF	en
dc.subject.other	Drop breakup	en
dc.subject.other	Drop formation	en
dc.subject.other	Evaporation	en
dc.subject.other	Liquids	en
dc.subject.other	Navier Stokes equations	en
dc.subject.other	Paraffins	en
dc.subject.other	Pipe	en
dc.subject.other	Phase interfaces	en
dc.title	Numerical investigation of the evaporation of two-component droplets	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.fuel.2011.01.017	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.fuel.2011.01.017	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	A numerical model for the complete thermo-fluid-dynamic and phase-change transport processes of two-component hydrocarbon liquid droplets consisting of n-heptane, n-decane and mixture of the two in various compositions is presented and validated against experimental data. The Navier-Stokes equations are solved numerically together with the VOF methodology for tracking the droplet interface, using an adaptive local grid refinement technique. The energy and concentration equations inside the liquid and the gaseous phases for both liquid species and their vapor components are additionally solved, coupled together with a model predicting the local vaporization rate at the cells forming the interface between the liquid and the surrounding gas. The model is validated against experimental data available for droplets suspended on a small diameter pipe in a hot air environment under convective flow conditions; these refer to droplet's surface temperature and size regression with time. An extended investigation of the flow field is presented along with the temperature and concentration fields. The equilibrium position of droplets is estimated together with the deformation process of the droplet. Finally, extensive parametric studies are presented revealing the nature of multi-component droplet evaporation on the details of the flow, the temperature and concentration fields. (C) 2011 Elsevier Ltd All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Fuel	en
dc.identifier.doi	10.1016/j.fuel.2011.01.017	en
dc.identifier.isi	ISI:000287652300022	en
dc.identifier.volume	90	en
dc.identifier.issue	4	en
dc.identifier.spage	1492	en
dc.identifier.epage	1507	en