Vibrations of nonlinear elastic structure excited by compressible flow
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F21%3A00543764" target="_blank" >RIV/61388998:_____/21:00543764 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/21:00365832
Result on the web
<a href="https://www.mdpi.com/2076-3417/11/11/4748" target="_blank" >https://www.mdpi.com/2076-3417/11/11/4748</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/app11114748" target="_blank" >10.3390/app11114748</a>
Alternative languages
Result language
angličtina
Original language name
Vibrations of nonlinear elastic structure excited by compressible flow
Original language description
This study deals with the development of an accurate, efficient and robust method for the numerical solution of the interaction of compressible flow and nonlinear dynamic elasticity. This problem requires the reliable solution of flow in time-dependent domains and the solution of deformations of elastic bodies formed by several materials with complicated geometry depending on time. In this paper, the fluid–structure interaction (FSI) problem is solved numerically by the space-time discontinuous Galerkin method (STDGM). In the case of compressible flow, we use the compressible Navier–Stokes equations formulated by the arbitrary Lagrangian–Eulerian (ALE) method. The elasticity problem uses the non-stationary formulation of the dynamic system using the St. Venant–Kirchhoff and neo-Hookean models. The STDGM for the nonlinear elasticity is tested on the Hron–Turek benchmark. The main novelty of the study is the numerical simulation of the nonlinear vocal fold vibrations excited by the compressible airflow coming from the trachea to the simplified model of the vocal tract. The computations show that the nonlinear elasticity model of the vocal folds is needed in order to obtain substantially higher accuracy of the computed vocal folds deformation than for the linear elasticity model. Moreover, the numerical simulations showed that the differences between the two considered nonlinear material models are very small.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10307 - Acoustics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Sciences-Basel
ISSN
2076-3417
e-ISSN
2076-3417
Volume of the periodical
11
Issue of the periodical within the volume
11
Country of publishing house
CH - SWITZERLAND
Number of pages
27
Pages from-to
4748
UT code for WoS article
000659633400001
EID of the result in the Scopus database
2-s2.0-85106999635