About: Determination of time duration of polymer particle collision in fluidized bed using discrete element method

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://seth.asc.tuwien.ac.at/proc12/full_paper/Contribution124.pdf
Description	Discrete element method (DEM) is used for the investigation of the collision behavior of particles in polymerization reactor. Colliding particles in the DEM representation consist of individual mutually force interacting discrete elements, the trajectory of each of them is given by the second Newton's law of movement. The collision time was evaluated as the time period when there exists at least one force connection between discrete elements from different colliding particles. The agglomeration of polymer particles is caused by various adhesion forces (e.g. liquid-bridge force and the force reflecting entanglement of polymer chains) acting at a characteristic time scale. Characteristic time of the liquid bridge formation and of the chain entanglement was compared to the collision time obtained by simulations of collisions of polymer particles with the aim to evaluate whether this collision time is long enough for the formation of particle agglomerate. Discrete element method (DEM) is used for the investigation of the collision behavior of particles in polymerization reactor. Colliding particles in the DEM representation consist of individual mutually force interacting discrete elements, the trajectory of each of them is given by the second Newton's law of movement. The collision time was evaluated as the time period when there exists at least one force connection between discrete elements from different colliding particles. The agglomeration of polymer particles is caused by various adhesion forces (e.g. liquid-bridge force and the force reflecting entanglement of polymer chains) acting at a characteristic time scale. Characteristic time of the liquid bridge formation and of the chain entanglement was compared to the collision time obtained by simulations of collisions of polymer particles with the aim to evaluate whether this collision time is long enough for the formation of particle agglomerate. (en)
Title	Determination of time duration of polymer particle collision in fluidized bed using discrete element method Determination of time duration of polymer particle collision in fluidized bed using discrete element method (en)
skos:prefLabel	Determination of time duration of polymer particle collision in fluidized bed using discrete element method Determination of time duration of polymer particle collision in fluidized bed using discrete element method (en)
skos:notation	RIV/67985874:_____/12:00422366!RIV14-GA0-67985874
http://linked.open...avai/predkladatel	Ústav pro hydrodynamiku AV ČR, v. v. i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA103/09/2066)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Ledvinková, Blanka
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav pro hydrodynamiku AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	130659
http://linked.open...ai/riv/idVysledku	RIV/67985874:_____/12:00422366
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	discrete element method; time-domain method; collision behavior; polyethylene particle; adhesive forces (en)
http://linked.open.../riv/klicoveSlovo	adhesive forces collision behavior polyethylene particle time-domain method discrete element method
http://linked.open...ontrolniKodProRIV	[198167E9C3A1]
http://linked.open...v/mistoKonaniAkce	Vídeň
http://linked.open...i/riv/mistoVydani	Vienna
http://linked.open...i/riv/nazevZdroje	Mathematical Modelling
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Analysis and development of constitutive equations for description of non-Newtonian fluids
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Kosek, J. Ledvinková, Blanka
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2012-02-14 (xsd:date)
issn	1474-6670
number of pages	3 (xsd:int)
http://bibframe.org/vocab/doi	10.3182/20120215-3-AT-3016.00059
http://purl.org/ne...btex#hasPublisher	International Federation of Automatic Control
https://schema.org/isbn	978-3-902823-23-6

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