Simulation of Unsteady Compressible Flow in a Channel with Vibrating Walls - Influence of the Frequency
Result description
This study deals with the numerical solution of a 2D unsteady flow of a compressible viscous fluid. The unsteadiness of the flow is caused by a prescribed periodic motion of a part of the channel wall. 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 considered in the Arbitrary Lagrangian-Eulerian form. The numerical solution is implemented using the finite volume method 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 number M = 0.012 , Reynolds number Re = 4500 and the wall motion frequency 20 and 100 Hz.
Keywords
CFDfinite volume methodunsteady flowlow Mach numberviscous compressible fluid
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/61388998:_____/11:00359140
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Simulation of Unsteady Compressible Flow in a Channel with Vibrating Walls - Influence of the Frequency
Original language description
This study deals with the numerical solution of a 2D unsteady flow of a compressible viscous fluid. The unsteadiness of the flow is caused by a prescribed periodic motion of a part of the channel wall. 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 considered in the Arbitrary Lagrangian-Eulerian form. The numerical solution is implemented using the finite volume method 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 number M = 0.012 , Reynolds number Re = 4500 and the wall motion frequency 20 and 100 Hz.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Result continuities
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)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Computers & Fluids
ISSN
0045-7930
e-ISSN
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Volume of the periodical
46
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
404-410
UT code for WoS article
000290834100060
EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BK - Liquid mechanics
Year of implementation
2011