Numerical simulation of unsteady compressible flows in vocal tract model
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F10%3A00347990" target="_blank" >RIV/61388998:_____/10:00347990 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Numerical simulation of unsteady compressible flows in vocal tract model
Original language description
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 2D system of Navier-Stokes equations was considered for the unsteady laminar flow of a compressible viscous fluid in a channel. The numerical solution is implemented using the Finite Volume Method and the predictor-corrector MacCormak scheme with Jameson artificial viscosity using a grid of quadrilateral cells. The results show that some numerical results of viscous flow in a symmetric grid and scheme can be non-symmetrical, depending on the geometry and Reynolds number.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
BI - Acoustics and oscillation
OECD FORD branch
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Result continuities
Project
<a href="/en/project/OC09019" target="_blank" >OC09019: Modelling of voice production based on biomechanics</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů