About: Basset history force for spherical particle colliding with wall

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In the most works the calculation of the Basset force is reset to zero after each rebound from the wall. However, the integral of Basset force is sometimes calculated from the moment t-Tback to the current moment t. A few particle jumps can occur during “the memory time period Tback , the history of the particle motion during this period must be taken into account totally, including the particle–wall collisions. In the paper the contributions of the particle–wall collisions in the Basset force are expressed by formula. It is shown that in the moment of the collision tc the value of the Basset force becomes infinitely large. In the moment near the collision t = tc+ Δ t (Δ t < tc) the value of the Basset force is great but the impulse of the Basset force has the order of , i.e. small. Thus, a particle-wall collision brings to a peak the increase of the Basset force during the short time so that its impulse remains finite. It must be taken into account into numerical models. In the most works the calculation of the Basset force is reset to zero after each rebound from the wall. However, the integral of Basset force is sometimes calculated from the moment t-Tback to the current moment t. A few particle jumps can occur during “the memory time period Tback , the history of the particle motion during this period must be taken into account totally, including the particle–wall collisions. In the paper the contributions of the particle–wall collisions in the Basset force are expressed by formula. It is shown that in the moment of the collision tc the value of the Basset force becomes infinitely large. In the moment near the collision t = tc+ Δ t (Δ t < tc) the value of the Basset force is great but the impulse of the Basset force has the order of , i.e. small. Thus, a particle-wall collision brings to a peak the increase of the Basset force during the short time so that its impulse remains finite. It must be taken into account into numerical models. (en)
Title	Basset history force for spherical particle colliding with wall Basset history force for spherical particle colliding with wall (en)
skos:prefLabel	Basset history force for spherical particle colliding with wall Basset history force for spherical particle colliding with wall (en)
skos:notation	RIV/67985874:_____/09:00329721!RIV10-AV0-67985874
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA103/09/1718), Z(AV0Z20600510)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Lukerchenko, Nikolay
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	304748
http://linked.open...ai/riv/idVysledku	RIV/67985874:_____/09:00329721
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	multiphase flow; Basset force; particle-wall collision (en)
http://linked.open.../riv/klicoveSlovo	particle-wall collision multiphase flow Basset force
http://linked.open...ontrolniKodProRIV	[702165ECB73E]
http://linked.open...v/mistoKonaniAkce	Pskov
http://linked.open...i/riv/mistoVydani	Pskov
http://linked.open...i/riv/nazevZdroje	MMTT-22: Matematicheskije Metody v Nauke i Technologijach
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Numerical model of the bed load transport of particle and cluster of particles under variable flow conditions in a channel
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Lukerchenko, Nikolay
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2009-05-25 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Dynamics of Fluid Systems and Transformation Processes in Hydrosphere
number of pages	3 (xsd:int)
http://purl.org/ne...btex#hasPublisher	PGPI
https://schema.org/isbn	978-5-91116-096-5

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