Effects of increasing particle loading in an axisymmetric, vertical, liquid-solid sudden expansion flow

Founti, M; Achimastos, T; Klipfel, A

dc.contributor.author	Founti, M	en
dc.contributor.author	Achimastos, T	en
dc.contributor.author	Klipfel, A	en
dc.date.accessioned	2014-03-01T01:14:33Z
dc.date.available	2014-03-01T01:14:33Z
dc.date.issued	1999	en
dc.identifier.issn	0098-2202	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13145
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	Flow of solids	en
dc.subject.other	Reynolds number	en
dc.subject.other	Turbulence	en
dc.subject.other	Two phase flow	en
dc.subject.other	Velocity	en
dc.subject.other	Liquid solid sudden expansion flow	en
dc.subject.other	Particle loading	en
dc.subject.other	Recirculation zone	en
dc.subject.other	Single phase flow	en
dc.subject.other	Turbulent flow	en
dc.title	Effects of increasing particle loading in an axisymmetric, vertical, liquid-solid sudden expansion flow	en
heal.type	journalArticle	en
heal.identifier.primary	10.1115/1.2821998	en
heal.identifier.secondary	http://dx.doi.org/10.1115/1.2821998	en
heal.language	English	en
heal.publicationDate	1999	en
heal.abstract	Measurements of particle and fluid velocities are reported for a turbulent, liquid-solid, sudden expansion flow flowing in the direction of gravity and laden with solid particles, at loadings equal to 1, 2, 3, 4, and 5 percent per volume. The measured two-phase flow velocities are compared to the characteristics of the corresponding single phase flow. Forces and flow mechanisms affecting particle dispersion in the various flow regimes are identified and it is indicated that there exist regions where the transverse Saffman lift force attains high values and controls particle dispersion. A consistent correlation between the mean reattachment point and the volumetric particle loading is indicated. All the two phase flows examined reattached upstream the corresponding mean reattachment location measured for the single phase flow. Increasing particle concentration affected locally the flow behaviour, with most obvious consequences within the recirculation zone and the near wall region.	en
heal.publisher	ASME, Fairfield, NJ, United States	en
heal.journalName	Journal of Fluids Engineering, Transactions of the ASME	en
dc.identifier.doi	10.1115/1.2821998	en
dc.identifier.isi	ISI:000079513300022	en
dc.identifier.volume	121	en
dc.identifier.issue	1	en
dc.identifier.spage	171	en
dc.identifier.epage	178	en