About: Assessment of the steady swirling flow stability using amplitude-frequency characteristic

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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. (en)
Title	Assessment of the steady swirling flow stability using amplitude-frequency characteristic Assessment of the steady swirling flow stability using amplitude-frequency characteristic (en)
skos:prefLabel	Assessment of the steady swirling flow stability using amplitude-frequency characteristic Assessment of the steady swirling flow stability using amplitude-frequency characteristic (en)
skos:notation	RIV/00216305:26210/09:PU83152!RIV10-GA0-26210___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA101/09/1715)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Koutník, Jiří Čermák, Libor Pochylý, František Habán, Vladimír Rudolf, Pavel
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	Vysoké učení technické v Brně / Fakulta strojního inženýrství
http://linked.open...dnocenehoVysledku	304222
http://linked.open...ai/riv/idVysledku	RIV/00216305:26210/09:PU83152
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	stability, swirling flow, vortex rope, spectral element method (en)
http://linked.open.../riv/klicoveSlovo	stability swirling flow vortex rope spectral element method
http://linked.open...ontrolniKodProRIV	[57DA02525B4F]
http://linked.open...v/mistoKonaniAkce	Brno
http://linked.open...i/riv/mistoVydani	Brno, CZ
http://linked.open...i/riv/nazevZdroje	Proceedings of the 3rd IAHR International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems - part I.
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Cavitating vortical structures induced by rotation of liquid
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Habán, Vladimír Pochylý, František Čermák, Libor Rudolf, Pavel Koutník, Jiří
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2009-10-14 (xsd:date)
number of pages	10 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Neuveden
https://schema.org/isbn	978-80-214-3947-4
http://localhost/t...ganizacniJednotka	26210
is http://linked.open...avai/riv/vysledek of	Assessment of the steady swirling flow stability using amplitude-frequency characteristic Assessment of the steady swirling flow stability using amplitude-frequency characteristic Assessment of the steady swirling flow stability using amplitude-frequency characteristic Assessment of the steady swirling flow stability using amplitude-frequency characteristic

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