Numerical Simulation of Unsteady Compressible Low Mach Number Flow in a Channel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F10%3A00170691" target="_blank" >RIV/68407700:21220/10:00170691 - isvavai.cz</a>

Alternative codes found

RIV/61388998:_____/10:00348198

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 Unsteady Compressible Low Mach Number Flow in a Channel

Original language description

This study deals with the 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 channel is a simplified model of the glottal space in the human vocal tract. The flow is described by the system of Navier-Stokes equations for laminar flows. The numerical solution is implemented using the finite volume method (FVM) and the predictor-corrector MacCormack scheme with Jameson artificial viscosity using a grid of quadrilateral cells. The numerical results for unsteady flows in the channel are presented for inlet Mach numberM=0.012, Reynolds number Re=5000 and the wall motion frequency 100 Hz.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BK - Liquid mechanics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

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

Name of the periodical

Engineering Mechanics

ISSN

1802-1484

e-ISSN

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Volume of the periodical

17

Issue of the periodical within the volume

2

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

15

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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