About: Turbulence Forcing Scheme In Physical Space Bassed On Ornstein-Uhlenbeck Process

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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. (en)
Title	Turbulence Forcing Scheme In Physical Space Bassed On Ornstein-Uhlenbeck Process Turbulence Forcing Scheme In Physical Space Bassed On Ornstein-Uhlenbeck Process (en)
skos:prefLabel	Turbulence Forcing Scheme In Physical Space Bassed On Ornstein-Uhlenbeck Process Turbulence Forcing Scheme In Physical Space Bassed On Ornstein-Uhlenbeck Process (en)
skos:notation	RIV/00216305:26210/10:PU88852!RIV12-MSM-26210___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(GA101/08/0096), S
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Volavý, Jaroslav Forman, Matěj
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	293761
http://linked.open...ai/riv/idVysledku	RIV/00216305:26210/10:PU88852
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Turbulence forcing, Large Eddy Simulation, Channel Flow (en)
http://linked.open.../riv/klicoveSlovo	Large Eddy Simulation Channel Flow Turbulence forcing
http://linked.open...ontrolniKodProRIV	[8EC448542B8D]
http://linked.open...v/mistoKonaniAkce	Lisabon
http://linked.open...i/riv/mistoVydani	Lisabon
http://linked.open...i/riv/nazevZdroje	CFD 2010
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Advanced Large Eddy Simulation modelling of particle-laden turbulent flow and shear-driven liquid wall film
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	Forman, Matěj Jícha, Miroslav Volavý, Jaroslav
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2010-06-14 (xsd:date)
number of pages	1 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Eccomas
https://schema.org/isbn	978-989-96778-0-7
http://localhost/t...ganizacniJednotka	26210

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