Dispersion of particles in anisotropic turbulent flows

Burry, D; Bergeles, G

dc.contributor.author	Burry, D	en
dc.contributor.author	Bergeles, G	en
dc.date.accessioned	2014-03-01T01:09:22Z
dc.date.available	2014-03-01T01:09:22Z
dc.date.issued	1993	en
dc.identifier.issn	0301-9322	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10931
dc.subject	anisotropy	en
dc.subject	Lagrangian simulation	en
dc.subject	turbulence	en
dc.subject	turbulent velocity correlations	en
dc.subject	two-phase flows	en
dc.subject.classification	Mechanics	en
dc.subject.other	Dispersion	en
dc.subject.other	Models	en
dc.subject.other	Simulation	en
dc.subject.other	Turbulent Flow	en
dc.subject.other	Two-Phase Flow	en
dc.subject.other	Anisotropy	en
dc.subject.other	Stresses	en
dc.subject.other	Anisotropic turbulent flows	en
dc.subject.other	Eulerian scheme	en
dc.subject.other	Lagrangian approach	en
dc.subject.other	Reynolds stress	en
dc.subject.other	Turbulent velocity correlations	en
dc.subject.other	Turbulent flow	en
dc.title	Dispersion of particles in anisotropic turbulent flows	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0301-9322(93)90093-A	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0301-9322(93)90093-A	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	A Lagrangian approach is used to simulate particle dispersion in anisotropic turbulent flows. Discrete particles are tracked in three dimensions, influenced by the fluid's turbulent velocity fluctuations. The fluctuations are temporally and directionally correlated through a statistical sampling method reflecting the anisotropy of the flow field. They are calculated at the discrete particle's position through a spatial correlation which takes into consideration the anisotropy of the Reynolds stresses. The method is first tested as to the performance of the temporal and directional correlation features and is then combined with a Eulerian scheme and an algebraic Reynolds stress model for the prediction of the carrier phase. The final form of the model is used to predict a two-phase turbulent round jet and a two-phase inert flow from a quarl burner, with swirl. In parallel to these, the method is compared to a previous particle-tracking method based on an isotropic hypothesis. © 1993.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	International Journal of Multiphase Flow	en
dc.identifier.doi	10.1016/0301-9322(93)90093-A	en
dc.identifier.isi	ISI:A1993LW31000007	en
dc.identifier.volume	19	en
dc.identifier.issue	4	en
dc.identifier.spage	651	en
dc.identifier.epage	664	en