Modelling of two-phase incompressible flows in ducts

Christafakis, A; Alexopoulos, J; Tsangaris, S

dc.contributor.author	Christafakis, A	en
dc.contributor.author	Alexopoulos, J	en
dc.contributor.author	Tsangaris, S	en
dc.date.accessioned	2014-03-01T01:31:14Z
dc.date.available	2014-03-01T01:31:14Z
dc.date.issued	2009	en
dc.identifier.issn	0307-904X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19755
dc.subject	Level-set method	en
dc.subject	Two-phase flow	en
dc.subject	Deformation of droplets	en
dc.subject	Ducts	en
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.classification	Mathematics, Interdisciplinary Applications	en
dc.subject.classification	Mechanics	en
dc.subject.other	LEVEL SET METHOD	en
dc.subject.other	DEFORMABLE DROPS	en
dc.subject.other	EQUATIONS	en
dc.subject.other	EMULSIONS	en
dc.subject.other	MOTION	en
dc.title	Modelling of two-phase incompressible flows in ducts	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.apm.2008.01.014	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.apm.2008.01.014	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	An improved level-set method for capturing interfaces combined with a second-order projection method for solving the time-dependent incompressible Navier-Stokes equations is implemented to compute two-phase viscous flows of Newtonian fluids on Cartesian staggered meshes. Various arrays of deformable droplets are suspended in an ambient fluid of different viscosity in ducts and the deformation and migration of droplets as they move along the duct are computed and discussed. In this study an efficient 'hybrid' iteration algorithm for the re-initialization of the level-set function with the property of keeping the thickness of the interface and to conserve mass is introduced. In addition, by implementing an adaptive mesh refinement, moving with the droplets, greater detail and accuracy of the contours of droplets and simultaneous higher speed-up of the calculations of the level-set algorithm are achieved. (C) 2008 Elsevier Inc. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE INC	en
heal.journalName	APPLIED MATHEMATICAL MODELLING	en
dc.identifier.doi	10.1016/j.apm.2008.01.014	en
dc.identifier.isi	ISI:000261727000001	en
dc.identifier.volume	33	en
dc.identifier.issue	3	en
dc.identifier.spage	1201	en
dc.identifier.epage	1212	en