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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F09%3APU82870%21RIV10-MSM-26210___
rdf:type
n7:Vysledek skos:Concept
dcterms:description
By nature, every water jet undergoes a secondary breakup from previously continuous substance to droplets. Generally, higher velocities lead into more distorted droplets, and a perfectly spherical droplet can be barely found then. However, in this study, slowly moving droplets of the circular shape were considered. The free-falling droplets (2 mm and 0.2 mm) were numerically solved to shed light on the flow field, their terminal velocity was calculated, and then some drawbacks in modelling of surface tension effects were shown. The commercial CFD package Fluent, specifically the Volume of Fluid Method with the continuous surface force model, was used. After all, several approaches were proposed to improve interface curvature estimation, and consequently to model surface tension effects more precisely. By nature, every water jet undergoes a secondary breakup from previously continuous substance to droplets. Generally, higher velocities lead into more distorted droplets, and a perfectly spherical droplet can be barely found then. However, in this study, slowly moving droplets of the circular shape were considered. The free-falling droplets (2 mm and 0.2 mm) were numerically solved to shed light on the flow field, their terminal velocity was calculated, and then some drawbacks in modelling of surface tension effects were shown. The commercial CFD package Fluent, specifically the Volume of Fluid Method with the continuous surface force model, was used. After all, several approaches were proposed to improve interface curvature estimation, and consequently to model surface tension effects more precisely.
dcterms:title
Modelling of a Free-Falling Water Droplet, Handicap of CSF Approach and Its Improvement Design Modelling of a Free-Falling Water Droplet, Handicap of CSF Approach and Its Improvement Design
skos:prefLabel
Modelling of a Free-Falling Water Droplet, Handicap of CSF Approach and Its Improvement Design Modelling of a Free-Falling Water Droplet, Handicap of CSF Approach and Its Improvement Design
skos:notation
RIV/00216305:26210/09:PU82870!RIV10-MSM-26210___
n3:aktivita
n4:S
n3:aktivity
S
n3:dodaniDat
n11:2010
n3:domaciTvurceVysledku
n20:2799472
n3:druhVysledku
n16:D
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
326822
n3:idVysledku
RIV/00216305:26210/09:PU82870
n3:jazykVysledku
n18:eng
n3:klicovaSlova
free-falling droplet, terminal velocity, volume of fluid, surface tension
n3:klicoveSlovo
n5:terminal%20velocity n5:volume%20of%20fluid n5:free-falling%20droplet n5:surface%20tension
n3:kontrolniKodProRIV
[BA89F08D32A9]
n3:mistoKonaniAkce
Ostrava
n3:mistoVydani
Ostrava
n3:nazevZdroje
Vodní paprsek
n3:obor
n19:BK
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:rokUplatneniVysledku
n11:2009
n3:tvurceVysledku
Boháček, Jan
n3:typAkce
n12:EUR
n3:zahajeniAkce
2009-11-04+01:00
s:numberOfPages
9
n8:hasPublisher
Ústav geoniky AVČR,v.v.i.
n6:isbn
978-80-86407-81-4
n17:organizacniJednotka
26210