Numerical simulation of diesel spray evaporation exploiting the "stabilized cool flame" phenomenon

Founti, MA; Kolaitis, DI

dc.contributor.author	Founti, MA	en
dc.contributor.author	Kolaitis, DI	en
dc.date.accessioned	2014-03-01T01:54:38Z
dc.date.available	2014-03-01T01:54:38Z
dc.date.issued	2005	en
dc.identifier.issn	1044-5110	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/27453
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Physics, Applied	en
dc.subject.other	EXPERIMENTAL VALIDATION	en
dc.subject.other	LOW-TEMPERATURE	en
dc.subject.other	COMBUSTION	en
dc.subject.other	MODEL	en
dc.subject.other	FLOW	en
dc.subject.other	OXIDATION	en
dc.subject.other	REACTOR	en
dc.title	Numerical simulation of diesel spray evaporation exploiting the "stabilized cool flame" phenomenon	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	An alternative approach to enhance conventional liquid fuel evaporation can be based on the stabilized cool flame phenomenon. To demonstrate this, the present work numerically simulates the flow field inside an atmospheric-pressure cool flame reactor using a two-phase computational fluid dynamics code, based on the solution of the RANS equations. Such a reactor exploits the "stabilized cool flame" phenomenon, augmenting local evaporation rates and leading to a partially oxidised mixture that can he subsequent v burnt. A Eulerian-Lagrangian formulation is adopted for the description of the gas field and droplet motion equations, respectively, and a stochastic approach is implemented to account for the effects of turbulence on the droplet motion. Droplet evaporation is modeled with the use of an evaporation model incorporating the Stefan blowing effect. In addition, a semiempirical model developed especially for this purpose is used to model the heat release due to the exothermic cool flame reactions. Numerical simulations are presented for test cases with and without cool flame reactions and compared to available experimental data. The satisfactory agreement between experiments and predictions confirms the ability of the approach to simulate reasonably well the main phenomena observed in a cool flame reactor.	en
heal.publisher	BEGELL HOUSE INC	en
heal.journalName	ATOMIZATION AND SPRAYS	en
dc.identifier.isi	ISI:000227073700001	en
dc.identifier.volume	15	en
dc.identifier.issue	1	en
dc.identifier.spage	1	en
dc.identifier.epage	17	en