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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F09%3APU83152%21RIV10-GA0-26210___
rdf:type
n10:Vysledek skos:Concept
dcterms:description
Paper presents description of the methodology for assessing swirling flow stability. In contrast to current approach, CFD is only used supplying of the steady velocity field. Rest of the analysis is done by solution of the eigen value problem, which is formed by linearized Euler equations. Numerical procedure based on spectral element method in combination with forced oscillations solution enables to determine a set of eigen frequencies of the swirling liquid. Presented method is a fast tool to assess stability of the draft tube flow for different inlet velocity boundary conditions or different draft tube shapes. Paper presents description of the methodology for assessing swirling flow stability. In contrast to current approach, CFD is only used supplying of the steady velocity field. Rest of the analysis is done by solution of the eigen value problem, which is formed by linearized Euler equations. Numerical procedure based on spectral element method in combination with forced oscillations solution enables to determine a set of eigen frequencies of the swirling liquid. Presented method is a fast tool to assess stability of the draft tube flow for different inlet velocity boundary conditions or different draft tube shapes.
dcterms:title
Assessment of the steady swirling flow stability using amplitude-frequency characteristic Assessment of the steady swirling flow stability using amplitude-frequency characteristic
skos:prefLabel
Assessment of the steady swirling flow stability using amplitude-frequency characteristic Assessment of the steady swirling flow stability using amplitude-frequency characteristic
skos:notation
RIV/00216305:26210/09:PU83152!RIV10-GA0-26210___
n3:aktivita
n18:P
n3:aktivity
P(GA101/09/1715)
n3:dodaniDat
n11:2010
n3:domaciTvurceVysledku
n6:8829179 n6:8024197 n6:4704843 n6:6210120 n6:3612015
n3:druhVysledku
n21:D
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
304222
n3:idVysledku
RIV/00216305:26210/09:PU83152
n3:jazykVysledku
n20:eng
n3:klicovaSlova
stability, swirling flow, vortex rope, spectral element method
n3:klicoveSlovo
n5:spectral%20element%20method n5:vortex%20rope n5:swirling%20flow n5:stability
n3:kontrolniKodProRIV
[57DA02525B4F]
n3:mistoKonaniAkce
Brno
n3:mistoVydani
Brno, CZ
n3:nazevZdroje
Proceedings of the 3rd IAHR International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems - part I.
n3:obor
n7:BK
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n8:GA101%2F09%2F1715
n3:rokUplatneniVysledku
n11:2009
n3:tvurceVysledku
Pochylý, František Habán, Vladimír Čermák, Libor Rudolf, Pavel Koutník, Jiří
n3:typAkce
n17:WRD
n3:zahajeniAkce
2009-10-14+02:00
s:numberOfPages
10
n19:hasPublisher
Neuveden
n4:isbn
978-80-214-3947-4
n15:organizacniJednotka
26210