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Statements

Subject Item
n2:RIV%2F68407700%3A21220%2F10%3A00169564%21RIV11-MSM-21220___
rdf:type
skos:Concept n20:Vysledek
dcterms:description
Using the theory of turbulence, especially using turbulence spectrum analysis, the relations e* = e/(u´4/n) ~ const., vK/u´ ~ const. and L/hK ~ const. were derived. Following it the constant dimensionless local turbulent energy dissipation rate e* = e/((Nd)4/n) = const. and length scale ratio L/d indirectly proportional to Reynolds number L/d ~ Re-1 were derived for agitated vessel for highly enough Reynolds number. The relations obtained by turbulence spectrum analysis were used for estimation of local turbulent energy dissipation rates rarely experimentally measured in large tanks by Ståhl Wernersson and Trägårdh (1998, 1999) covering range Re = 87 600 - 910 200. These experiments, although rare, support our theoretical analysis and makes this problem challenging. Using the theory of turbulence, especially using turbulence spectrum analysis, the relations e* = e/(u´4/n) ~ const., vK/u´ ~ const. and L/hK ~ const. were derived. Following it the constant dimensionless local turbulent energy dissipation rate e* = e/((Nd)4/n) = const. and length scale ratio L/d indirectly proportional to Reynolds number L/d ~ Re-1 were derived for agitated vessel for highly enough Reynolds number. The relations obtained by turbulence spectrum analysis were used for estimation of local turbulent energy dissipation rates rarely experimentally measured in large tanks by Ståhl Wernersson and Trägårdh (1998, 1999) covering range Re = 87 600 - 910 200. These experiments, although rare, support our theoretical analysis and makes this problem challenging.
dcterms:title
Local energy dissipation rate in agitated vessel. New approach to dimensionless definition Local energy dissipation rate in agitated vessel. New approach to dimensionless definition
skos:prefLabel
Local energy dissipation rate in agitated vessel. New approach to dimensionless definition Local energy dissipation rate in agitated vessel. New approach to dimensionless definition
skos:notation
RIV/68407700:21220/10:00169564!RIV11-MSM-21220___
n4:aktivita
n18:Z
n4:aktivity
Z(MSM6840770035)
n4:dodaniDat
n11:2011
n4:domaciTvurceVysledku
n8:6892965 n8:6228674
n4:druhVysledku
n7:D
n4:duvernostUdaju
n16:S
n4:entitaPredkladatele
n15:predkladatel
n4:idSjednocenehoVysledku
268742
n4:idVysledku
RIV/68407700:21220/10:00169564
n4:jazykVysledku
n9:eng
n4:klicovaSlova
mixing; local turbulent energy dissipation rate; integral length scale; agitated vessel; Rushton turbine; dimensionless definition
n4:klicoveSlovo
n5:local%20turbulent%20energy%20dissipation%20rate n5:integral%20length%20scale n5:mixing n5:agitated%20vessel n5:Rushton%20turbine n5:dimensionless%20definition
n4:kontrolniKodProRIV
[1E0E6067252D]
n4:mistoKonaniAkce
Praha
n4:mistoVydani
Prague
n4:nazevZdroje
19th International Congress of Chemical and Process Engineering CHISA 2010, 7th European Congress of Chemical Engineering ECCE7
n4:obor
n17:CI
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
2
n4:rokUplatneniVysledku
n11:2010
n4:tvurceVysledku
Ditl, Pavel šulc, Radek
n4:typAkce
n10:EUR
n4:zahajeniAkce
2010-08-28+02:00
n4:zamer
n13:MSM6840770035
s:numberOfPages
15
n19:hasPublisher
Czech Society of Chemical Engineering
n12:isbn
978-80-02-02210-7
n14:organizacniJednotka
21220