About: Numerical Solutions of Unsteady Flows with Low Inlet Mach Numbers

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	This study deals with a numerical solution of a 2D unsteady flow of a compressible viscous fluid in a channel for low inlet airflow velocity. The unsteadiness of the flow is caused by a prescribed periodic motion of a part of the channel wall with large amplitudes, nearly closing the channel during oscillations. The flow in channel can represent a model of airflow coming from the trachea, through the glottal region with periodically vibrating vocal folds, and to the human vocal tract. The flow is described by a system of Navier-Stokes equations for laminar flows in Arbitrary Lagrangian-Eulerian formulation. The numerical solution is implemented using the finite volume method and the predictor-corrector MacCormack scheme with Jameson artificial viscosity. The numerical results for unsteady flows in the channel are presented for inlet Mach number M=0.012, Reynolds number Re = 5000 and wall motion frequency 100 Hz. This study deals with a numerical solution of a 2D unsteady flow of a compressible viscous fluid in a channel for low inlet airflow velocity. The unsteadiness of the flow is caused by a prescribed periodic motion of a part of the channel wall with large amplitudes, nearly closing the channel during oscillations. The flow in channel can represent a model of airflow coming from the trachea, through the glottal region with periodically vibrating vocal folds, and to the human vocal tract. The flow is described by a system of Navier-Stokes equations for laminar flows in Arbitrary Lagrangian-Eulerian formulation. The numerical solution is implemented using the finite volume method and the predictor-corrector MacCormack scheme with Jameson artificial viscosity. The numerical results for unsteady flows in the channel are presented for inlet Mach number M=0.012, Reynolds number Re = 5000 and wall motion frequency 100 Hz. (en)
Title	Numerical Solutions of Unsteady Flows with Low Inlet Mach Numbers Numerical Solutions of Unsteady Flows with Low Inlet Mach Numbers (en)
skos:prefLabel	Numerical Solutions of Unsteady Flows with Low Inlet Mach Numbers Numerical Solutions of Unsteady Flows with Low Inlet Mach Numbers (en)
skos:notation	RIV/68407700:21220/10:00168108!RIV11-GA0-21220___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA201/08/0012), P(IAA200760613), Z(AV0Z20760514), Z(MSM6840770010)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Fürst, Jiří Pořízková, Petra
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta strojní
http://linked.open...dnocenehoVysledku	275679
http://linked.open...ai/riv/idVysledku	RIV/68407700:21220/10:00168108
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	CFD; finite volume method; unsteady flow; low Mach number; viscous compressible fluid (en)
http://linked.open.../riv/klicoveSlovo	CFD finite volume method unsteady flow low Mach number viscous compressible fluid
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[C769E41B112B]
http://linked.open...i/riv/nazevZdroje	Mathematics and Computers in Simulation
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Qualitative analysis and numerical solution of flow problems Computer modelling of aeroelastic phenomena for real fluid flowing past vibrating airfoils particularly after the loss of system stability
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	80
http://linked.open...iv/tvurceVysledku	Fürst, Jiří Horáček, Jaromír Kozel, Karel Pořízková, Petra
http://linked.open...ain/vavai/riv/wos	000278820500022
http://linked.open...n/vavai/riv/zamer	Complex dynamical systems in thermodynamics, fluid and solid mechanics Aplikovaná matematika v technických a fyzikálních vědách
issn	0378-4754
number of pages	11 (xsd:int)
http://localhost/t...ganizacniJednotka	21220
is http://linked.open...avai/riv/vysledek of	Numerical Solutions of Unsteady Flows with Low Inlet Mach Numbers

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