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Statements

Subject Item
n2:RIV%2F61388998%3A_____%2F11%3A00369551%21RIV12-AV0-61388998
rdf:type
n17:Vysledek skos:Concept
dcterms:description
Nowadays we have the dynamical velocity vector field of turbulent flow at our disposal coming thanks advances of either mathematical simulation (DNS) or of experiment (time-resolved PIV). Unfortunately there is no standard method for analysis of such data describing complicated extended dynamical systems, which is characterized by excessive number of degrees of freedom. An overview of candidate methods convenient to spatiotemporal analysis for such systems is to be presented. Special attention will be paid to energetic methods including Proper Orthogonal Decomposition (POD) in regular and snapshot variants as well as the Bi-Orthogonal Decomposition (BOD) for joint space-time analysis. Then, stability analysis using Principal Oscillation Patterns (POPs) will be introduced. Finally, the Independent Component Analysis (ICA) method will be proposed for detection of coherent structures in turbulent flow-field defined by time-dependent velocity vector field. Principle and some practical aspects of the methods are to be shown. Special attention is to be paid to physical interpretation of outputs of the methods listed above. Nowadays we have the dynamical velocity vector field of turbulent flow at our disposal coming thanks advances of either mathematical simulation (DNS) or of experiment (time-resolved PIV). Unfortunately there is no standard method for analysis of such data describing complicated extended dynamical systems, which is characterized by excessive number of degrees of freedom. An overview of candidate methods convenient to spatiotemporal analysis for such systems is to be presented. Special attention will be paid to energetic methods including Proper Orthogonal Decomposition (POD) in regular and snapshot variants as well as the Bi-Orthogonal Decomposition (BOD) for joint space-time analysis. Then, stability analysis using Principal Oscillation Patterns (POPs) will be introduced. Finally, the Independent Component Analysis (ICA) method will be proposed for detection of coherent structures in turbulent flow-field defined by time-dependent velocity vector field. Principle and some practical aspects of the methods are to be shown. Special attention is to be paid to physical interpretation of outputs of the methods listed above.
dcterms:title
Decomposition Methods in Turbulence Research Decomposition Methods in Turbulence Research
skos:prefLabel
Decomposition Methods in Turbulence Research Decomposition Methods in Turbulence Research
skos:notation
RIV/61388998:_____/11:00369551!RIV12-AV0-61388998
n17:predkladatel
n18:ico%3A61388998
n3:aktivita
n8:Z n8:P
n3:aktivity
P(GA101/08/1112), P(GAP101/10/1230), Z(AV0Z20760514)
n3:dodaniDat
n10:2012
n3:domaciTvurceVysledku
n15:6494315
n3:druhVysledku
n20:D
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n6:predkladatel
n3:idSjednocenehoVysledku
193062
n3:idVysledku
RIV/61388998:_____/11:00369551
n3:jazykVysledku
n16:eng
n3:klicovaSlova
turbulence; decomposition; spatio-temporal data
n3:klicoveSlovo
n12:turbulence n12:spatio-temporal%20data n12:decomposition
n3:kontrolniKodProRIV
[1E74D63812DB]
n3:mistoKonaniAkce
Jičín
n3:mistoVydani
Liberec
n3:nazevZdroje
Proceedings of the International Conference Experimental Fluid Mechanics 2011
n3:obor
n21:BK
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:projekt
n13:GAP101%2F10%2F1230 n13:GA101%2F08%2F1112
n3:rokUplatneniVysledku
n10:2011
n3:tvurceVysledku
Uruba, Václav
n3:typAkce
n19:WRD
n3:zahajeniAkce
2011-11-22+01:00
n3:zamer
n14:AV0Z20760514
s:numberOfPages
21
n11:hasPublisher
Technická univerzita v Liberci
n22:isbn
978-80-7372-784-0