About: Parallel CFD simulation of flow in a 3D model of vibrating human vocal folds

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Accurate computation of highly unsteady and massively separated airflow in human vocal folds during phonation, which is fundamental for the understanding and modeling of the aeroacoustic processes involved in human voice production, requires CFD simulations on large 3D dynamic meshes. This work presents a 3D model of flow past vibrating vocal folds solved by cell-centered finite volume method, verification of the solver on a benchmark cylinder cross-flow problem, grid dependence study and parallel results obtained on a heterogeneous Linux computational cluster with 12 Intel Xeon dual-processor dual-core and 17AMD Opteron dual-processor single-core nodes. Transient computations on dynamics meshes with up to 3,2 m elements were performed on two geometries modeling convergent and divergent glottis with an angle of 20 degrees. In the results, the jet deflection angle, flow rate, glottal velocity and pressure, drag and lift force and jet contours (including phase-averaged data) are compared for these two configurations. Accurate computation of highly unsteady and massively separated airflow in human vocal folds during phonation, which is fundamental for the understanding and modeling of the aeroacoustic processes involved in human voice production, requires CFD simulations on large 3D dynamic meshes. This work presents a 3D model of flow past vibrating vocal folds solved by cell-centered finite volume method, verification of the solver on a benchmark cylinder cross-flow problem, grid dependence study and parallel results obtained on a heterogeneous Linux computational cluster with 12 Intel Xeon dual-processor dual-core and 17AMD Opteron dual-processor single-core nodes. Transient computations on dynamics meshes with up to 3,2 m elements were performed on two geometries modeling convergent and divergent glottis with an angle of 20 degrees. In the results, the jet deflection angle, flow rate, glottal velocity and pressure, drag and lift force and jet contours (including phase-averaged data) are compared for these two configurations. (en)
Title	Parallel CFD simulation of flow in a 3D model of vibrating human vocal folds Parallel CFD simulation of flow in a 3D model of vibrating human vocal folds (en)
skos:prefLabel	Parallel CFD simulation of flow in a 3D model of vibrating human vocal folds Parallel CFD simulation of flow in a 3D model of vibrating human vocal folds (en)
skos:notation	RIV/61388998:_____/13:00392689!RIV14-GA0-61388998
http://linked.open...avai/predkladatel	Ústav termomechaniky AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP101/11/0207), Z(AV0Z20760514)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Horáček, Jaromír Šidlof, Petr
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	Ústav termomechaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	95284
http://linked.open...ai/riv/idVysledku	RIV/61388998:_____/13:00392689
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	numerical simulation; vocal folds; glottal airflow; inite volume method; parallel CFD (en)
http://linked.open.../riv/klicoveSlovo	glottal airflow inite volume method numerical simulation vocal folds parallel CFD
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[D5A35E411F97]
http://linked.open...i/riv/nazevZdroje	Computers & Fluids
http://linked.open...in/vavai/riv/obor	BI
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Coupled problems of fluid and solid mechanics - nonlinear aeroelasticity
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	80
http://linked.open...iv/tvurceVysledku	Horáček, Jaromír Šidlof, Petr Řidký, V.
http://linked.open...ain/vavai/riv/wos	000320427200034
http://linked.open...n/vavai/riv/zamer	Complex dynamical systems in thermodynamics, fluid and solid mechanics
issn	0045-7930
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.compfluid.2012.02.005

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