Numerical Simulation of Compressible Flow with Low Mach Number through Oscillating Glottis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F08%3A00145737" target="_blank" >RIV/68407700:21220/08:00145737 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Numerical Simulation of Compressible Flow with Low Mach Number through Oscillating Glottis

Original language description

The work deals with the numerical solution of 2D unsteady compressible viscous flows in a symmetric channel for a low inlet airflow velocity. The unsteadiness of the flow is caused by a prescribed periodic motion of a part of the channel wall with largeamplitudes, nearly clossing the channel during the oscillations. The flow in the channel can represent a simplified model of airflow coming from the trachea, through the glottal region with periodically vibrating vocal folds to the human vocal tract. Thenumerical solution is realized by finite volume method and the explicit predictor-corrector MacCormack scheme with Jameson artificial viscosity using a grid of quadrilateral cells. The moved grid of quadrilateral cells is considered in the form of conservation laws using Arbitrary Lagrangian-Eulerian method.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

BK - Liquid mechanics

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Flow - Induced Vibration

ISBN

978-80-87012-12-3

ISSN

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e-ISSN

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Number of pages

6

Pages from-to

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Publisher name

Ústav termomechaniky AV ČR

Place of publication

Praha

Event location

Praha

Event date

Jun 30, 2008

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000283472100020