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Sedimentation of binary particle-liquid mixtures

SYSNO ASEP	0346207
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Sedimentation of binary particle-liquid mixtures
Author(s)	Vlasák, Pavel (UH-J)_{SAI, ORCID, RID} Chára, Zdeněk (UH-J)_{SAI, ORCID, RID}
Number of authors	2
Source Title	Matematičeskije metody v technike i technologijach MMTT-23, Tom 3, Sekcija 3. - Saratov : Saratovskij gosudarstvennyj techničeskij universitet, 2010 - ISBN 978-5-7433-2254-1
Pages	s. 84-87
Number of pages	4 s.
Action	Meždunarodnaja naučnaja konferencija Matematičeskije metody v technike i technologijach /23./
Event date	22.06.2010-25.06.2010
VEvent location	Saratov
Country	RU - Russian Federation
Event type	WRD
Language	eng - English
Country	RU - Russian Federation
Keywords	sedimentation ; binary mixtures ; particle size effect ; concentration effect
Subject RIV	BK - Fluid Dynamics
R&D Projects	GAP105/10/1574 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z20600510 - UH-J (2005-2011)
Annotation	The paper deals with modelling and experimental investigation of the mono-disperse and binary particle-liquid mixtures sedimentation in a vertical sedimentation vessel. The particle Reynolds number varies from 1 to 140. To measure the fall velocity the radiometric tracer method was used. The study confirms that for the binary mixture consisting of spherical particles of very different sizes the fall velocity of the bigger particles increase in comparison with the mono-disperse suspension with the same total concentration. A slight decrease of the fall velocity of the smaller particles was observed for higher proportion of larger particles. Addition of larger particles causes decreasing of the fall velocity of binary mixture, addition of fine particles causes increasing of the fall velocity. The effect grows with increase of difference in particle size.
Workplace	Institute of Hydrodynamics
Contact	Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003
Year of Publishing	2011

Number of the records: 1