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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F10%3APU88852%21RIV12-MSM-26210___
rdf:type
n14:Vysledek skos:Concept
dcterms:description
New turbulence forcing scheme is introduced in this work. This scheme operates in physical space. The main idea of this scheme is generating a force in every time step of simulation in particular points in the computational domain and this force is than added to momentum equations. The force is generated using Ornstein-Uhlenbeck stochastic process. The main feature of this process is that the force generated in next time step is not independent on the previous value (the Ornstein-Uhlenbeck is so called Markov process). So there is a correlation in the history of the generated force. It is suitable to use this force for generating turbulence because of this correlation. The developed forcing scheme was tested on the case of turbulent channel flow. Method for solution was Large Eddy Simulation with subgrid kinetic energy subgrid model. The results presented in this work are for low Reynolds number channel flow. For this case are the results in a good agreement with DNS data. New turbulence forcing scheme is introduced in this work. This scheme operates in physical space. The main idea of this scheme is generating a force in every time step of simulation in particular points in the computational domain and this force is than added to momentum equations. The force is generated using Ornstein-Uhlenbeck stochastic process. The main feature of this process is that the force generated in next time step is not independent on the previous value (the Ornstein-Uhlenbeck is so called Markov process). So there is a correlation in the history of the generated force. It is suitable to use this force for generating turbulence because of this correlation. The developed forcing scheme was tested on the case of turbulent channel flow. Method for solution was Large Eddy Simulation with subgrid kinetic energy subgrid model. The results presented in this work are for low Reynolds number channel flow. For this case are the results in a good agreement with DNS data.
dcterms:title
Turbulence Forcing Scheme In Physical Space Bassed On Ornstein-Uhlenbeck Process Turbulence Forcing Scheme In Physical Space Bassed On Ornstein-Uhlenbeck Process
skos:prefLabel
Turbulence Forcing Scheme In Physical Space Bassed On Ornstein-Uhlenbeck Process Turbulence Forcing Scheme In Physical Space Bassed On Ornstein-Uhlenbeck Process
skos:notation
RIV/00216305:26210/10:PU88852!RIV12-MSM-26210___
n3:aktivita
n17:S n17:P
n3:aktivity
P(GA101/08/0096), S
n3:dodaniDat
n9:2012
n3:domaciTvurceVysledku
n5:3247538 n5:4397886
n3:druhVysledku
n12:D
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n21:predkladatel
n3:idSjednocenehoVysledku
293761
n3:idVysledku
RIV/00216305:26210/10:PU88852
n3:jazykVysledku
n13:eng
n3:klicovaSlova
Turbulence forcing, Large Eddy Simulation, Channel Flow
n3:klicoveSlovo
n11:Turbulence%20forcing n11:Channel%20Flow n11:Large%20Eddy%20Simulation
n3:kontrolniKodProRIV
[8EC448542B8D]
n3:mistoKonaniAkce
Lisabon
n3:mistoVydani
Lisabon
n3:nazevZdroje
CFD 2010
n3:obor
n18:BK
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:projekt
n19:GA101%2F08%2F0096
n3:rokUplatneniVysledku
n9:2010
n3:tvurceVysledku
Jícha, Miroslav Volavý, Jaroslav Forman, Matěj
n3:typAkce
n15:WRD
n3:zahajeniAkce
2010-06-14+02:00
s:numberOfPages
1
n16:hasPublisher
Eccomas
n10:isbn
978-989-96778-0-7
n7:organizacniJednotka
26210