About: Wall shear rate distribution for flow in random sphere packings

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The wall shear rate distribution P(gamma) is investigated for pressure-driven Stokes flow through random arrangements of spheres at packing fractions 0.1 phi 0.64. For dense packings, P(gamma) is monotonic and approximately exponential. As phi 0.1, P(gamma) picks up additional structure which corresponds to the flow around isolated spheres, for which an exact result can be obtained. A simple expression for the mean wall shear rate is presented, based on a force-balance argument. The wall shear rate distribution P(gamma) is investigated for pressure-driven Stokes flow through random arrangements of spheres at packing fractions 0.1 phi 0.64. For dense packings, P(gamma) is monotonic and approximately exponential. As phi 0.1, P(gamma) picks up additional structure which corresponds to the flow around isolated spheres, for which an exact result can be obtained. A simple expression for the mean wall shear rate is presented, based on a force-balance argument. (en) Pomocí metody Lattice-Boltzmann byla provedena výpočetní studie distribuce tečného napětí v náhodně nasypaných vrstvách kulových částic. Byl systematicky studován vliv průtoku a sypné hustoty. V kombinaci s teoretickou analýzou byla odvozena univerzální korelace umožňující predikci střední hodnoty tečného napětí ze znalosti charakteristik tekutiny a částic. (cs)
Title	Wall shear rate distribution for flow in random sphere packings Wall shear rate distribution for flow in random sphere packings (en) Distribuce tečného napětí při toku vrstvou kulových částic (cs)
skos:prefLabel	Wall shear rate distribution for flow in random sphere packings Wall shear rate distribution for flow in random sphere packings (en) Distribuce tečného napětí při toku vrstvou kulových částic (cs)
skos:notation	RIV/60461373:22340/08:00020746!RIV09-MSM-22340___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Štěpánek, František
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	405509
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/08:00020746
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	DISCRETIZED BOLTZMANN-EQUATION; PARTICULATE SUSPENSIONS; NUMERICAL SIMULATIONS; RANDOM ARRAYS; POROUS-MEDIA; PERMEABILITY; PARTICLES; DETERGENCY; ADHESION; SURFACES (en)
http://linked.open.../riv/klicoveSlovo	SURFACES PARTICLES PERMEABILITY ADHESION DETERGENCY DISCRETIZED BOLTZMANN-EQUATION NUMERICAL SIMULATIONS PARTICULATE SUSPENSIONS POROUS-MEDIA RANDOM ARRAYS
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[82B9DA7270CA]
http://linked.open...i/riv/nazevZdroje	Physical Review Letters
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	100
http://linked.open...iv/tvurceVysledku	Štěpánek, František Warren, PB
http://linked.open...ain/vavai/riv/wos	000253764400024
issn	0031-9007
number of pages	1 (xsd:int)
http://localhost/t...ganizacniJednotka	22340

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