About: On stochastic inlet boundary condition for unsteady simulations

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The paper deals with the stochastic generation of synthesized turbulence, which may be used for a generating of an inlet boundary condition for unsteady simulations, e.g. Direct Numerical Simulation (DNS) or Large Eddy Simulation (LES). Assumptions for the generated turbulence are isotropy and homogeneity. The described method produces a stochastic turbulent velocity field using the synthesis of a finite sum of random Fourier modes. The calculation of individual Fourier modes is based on known energy spectrum of turbulent flow, and some turbulent quantities, e.g. turbulent kinetic energy and turbulent dissipation rate. A division of wave number range of the energy spectrum determines directly the number of Fourier modes, and has a direct impact on accuracy and speed of this calculation. Therefore, this work will examine the influence of the number of Fourier modes on a conservation of the first and second statistical moments of turbulent velocity components, which are prespecified. It is important to The paper deals with the stochastic generation of synthesized turbulence, which may be used for a generating of an inlet boundary condition for unsteady simulations, e.g. Direct Numerical Simulation (DNS) or Large Eddy Simulation (LES). Assumptions for the generated turbulence are isotropy and homogeneity. The described method produces a stochastic turbulent velocity field using the synthesis of a finite sum of random Fourier modes. The calculation of individual Fourier modes is based on known energy spectrum of turbulent flow, and some turbulent quantities, e.g. turbulent kinetic energy and turbulent dissipation rate. A division of wave number range of the energy spectrum determines directly the number of Fourier modes, and has a direct impact on accuracy and speed of this calculation. Therefore, this work will examine the influence of the number of Fourier modes on a conservation of the first and second statistical moments of turbulent velocity components, which are prespecified. It is important to (en)
Title	On stochastic inlet boundary condition for unsteady simulations On stochastic inlet boundary condition for unsteady simulations (en)
skos:prefLabel	On stochastic inlet boundary condition for unsteady simulations On stochastic inlet boundary condition for unsteady simulations (en)
skos:notation	RIV/00216305:26210/13:PU106797!RIV14-GA0-26210___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA13-27505S)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Čermák, Libor Jícha, Miroslav Niedoba, 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	93821
http://linked.open...ai/riv/idVysledku	RIV/00216305:26210/13:PU106797
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	computaional fluid dynamics, inlet boundary condition, synthesized turbulence, Fourier mode (en)
http://linked.open.../riv/klicoveSlovo	inlet boundary condition Fourier mode computaional fluid dynamics synthesized turbulence
http://linked.open...ontrolniKodProRIV	[25DB95069083]
http://linked.open...v/mistoKonaniAkce	Kutná Hora
http://linked.open...i/riv/mistoVydani	Kutná Hora
http://linked.open...i/riv/nazevZdroje	International Conference Experimental Fluid Mechanics 2013 Conference Proceedings
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Meshfree technique with Large Eddy Simulation for fluid dynamics and computational aeroacoustics
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Jícha, Miroslav Čermák, Libor Niedoba, Pavel
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2013-11-19 (xsd:date)
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Technická univerzita v Liberci
https://schema.org/isbn	978-80-260-5375-0
http://localhost/t...ganizacniJednotka	26210

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