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Statements

Subject Item
n2:RIV%2F61989100%3A27230%2F03%3A00008356%21RIV%2F2004%2FMSM%2F272304%2FN
rdf:type
n7:Vysledek skos:Concept
dcterms:description
The visualization Results of viscous incompressible isothermal fluid flow in the gap between two concentric cylinders, one of which rotates. The flow was investigated for wide marrow narrow gaps between the cylinders. Boundary is set by a ratio s/R = 4.10-3. The visualization of L-T transition flow gives data regarding development of these instabilities when Reynolds number Re = ?.R2/ ? is rising. There are four types of instabilities in the narrow gap. They start from concentric circles develop through two types of spirals and end up as rollers. In the case of the wide gap there is gradual development similar to Taylor vortexes of spirals which are oriented in the opposite direction of the ones for a narrow gap. Base regime, wavy regime and wavy turbulent regime can be identified for the wide gap. It is relatively difficult to identify the beginning of fully developed turbulent flow. Linear methods for time sequences development investigation can be used. Especially velocity vectors monitored by so The visualization Results of viscous incompressible isothermal fluid flow in the gap between two concentric cylinders, one of which rotates. The flow was investigated for wide marrow narrow gaps between the cylinders. Boundary is set by a ratio s/R = 4.10-3. The visualization of L-T transition flow gives data regarding development of these instabilities when Reynolds number Re = ?.R2/ ? is rising. There are four types of instabilities in the narrow gap. They start from concentric circles develop through two types of spirals and end up as rollers. In the case of the wide gap there is gradual development similar to Taylor vortexes of spirals which are oriented in the opposite direction of the ones for a narrow gap. Base regime, wavy regime and wavy turbulent regime can be identified for the wide gap. It is relatively difficult to identify the beginning of fully developed turbulent flow. Linear methods for time sequences development investigation can be used. Especially velocity vectors monitored by so
dcterms:title
Visualization of Certain Instability Types During L-T transitions Caused by Centrifugal Forces. Visualization of Certain Instability Types During L-T transitions Caused by Centrifugal Forces.
skos:prefLabel
Visualization of Certain Instability Types During L-T transitions Caused by Centrifugal Forces. Visualization of Certain Instability Types During L-T transitions Caused by Centrifugal Forces.
skos:notation
RIV/61989100:27230/03:00008356!RIV/2004/MSM/272304/N
n4:strany
153-154
n4:aktivita
n20:Z
n4:aktivity
Z(MSM 272300008)
n4:dodaniDat
n17:2004
n4:domaciTvurceVysledku
n6:8318018 n6:6274811
n4:druhVysledku
n12:D
n4:duvernostUdaju
n19:S
n4:entitaPredkladatele
n16:predkladatel
n4:idSjednocenehoVysledku
633084
n4:idVysledku
RIV/61989100:27230/03:00008356
n4:jazykVysledku
n13:eng
n4:klicovaSlova
Rotating disc, turbulence, Fluent, axial force
n4:klicoveSlovo
n9:Fluent n9:Rotating%20disc n9:turbulence n9:axial%20force
n4:kontrolniKodProRIV
[3984D2A5D936]
n4:mistoKonaniAkce
Praha
n4:mistoVydani
Praha
n4:nazevZdroje
Colloquium fluid dynamics 2003
n4:obor
n11:JR
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
2
n4:pocetUcastnikuAkce
0
n4:pocetZahranicnichUcastnikuAkce
0
n4:rokUplatneniVysledku
n17:2003
n4:tvurceVysledku
Šťáva, Pavel Skýba, Vladimír
n4:typAkce
n21:EUR
n4:zahajeniAkce
2003-10-22+02:00
n4:zamer
n8:MSM%20272300008
s:numberOfPages
2
n15:hasPublisher
Ústav termomechaniky AV ČR
n18:isbn
80-85918-83-8
n5:organizacniJednotka
27230