Weakly nonlinear oscillations of gas column driven by self-sustained sources

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00332639" target="_blank" >RIV/68407700:21230/19:00332639 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1051/matecconf/201928306001" target="_blank" >https://doi.org/10.1051/matecconf/201928306001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/matecconf/201928306001" target="_blank" >10.1051/matecconf/201928306001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Weakly nonlinear oscillations of gas column driven by self-sustained sources

Popis výsledku v původním jazyce

Self-sustained sources coupled to some sort of resonator have drawn attention recently as a subject of nonlinear dynamics with many practical applications as well as interesting mathematical problems from the chaos theory and the theory of synchronizations. In order to mimic the self-sustainability arising from physical background the van der Pol equation is commonly used as a model (e.g. vortex induced noise, flowstructure interactions, vocal folds motion etc.). In many cases the sound field inside the resonator is strong enough for weakly nonlinear formulation based on the Kuznetsov model equation to be employed. An array of sources governed by the inhomogeneous van der Pol equation coupled to the nonlinear acoustic wave equation is studied. The one dimensional constant cross-section open resonator with zero radiation impedance is assumed. The focus is on the main features such as mode-locking, harmonics generation and build-up from infinitesimal fluctuations.

Název v anglickém jazyce

Weakly nonlinear oscillations of gas column driven by self-sustained sources

Popis výsledku anglicky

Self-sustained sources coupled to some sort of resonator have drawn attention recently as a subject of nonlinear dynamics with many practical applications as well as interesting mathematical problems from the chaos theory and the theory of synchronizations. In order to mimic the self-sustainability arising from physical background the van der Pol equation is commonly used as a model (e.g. vortex induced noise, flowstructure interactions, vocal folds motion etc.). In many cases the sound field inside the resonator is strong enough for weakly nonlinear formulation based on the Kuznetsov model equation to be employed. An array of sources governed by the inhomogeneous van der Pol equation coupled to the nonlinear acoustic wave equation is studied. The one dimensional constant cross-section open resonator with zero radiation impedance is assumed. The focus is on the main features such as mode-locking, harmonics generation and build-up from infinitesimal fluctuations.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10307 - Acoustics

Projekt

<a href="/cs/project/GA18-24954S" target="_blank" >GA18-24954S: Šíření akustických vln fononickými materiály a strukturami</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

2ND FRANCO-CHINESE ACOUSTIC CONFERENCE (FCAC 2018)

ISBN

—

ISSN

2261-236X

e-ISSN

2261-236X

Počet stran výsledku

3

Strana od-do

—

Název nakladatele

EDP Sciences - Web of Conferences

Místo vydání

Les Ulis Cedex A

Místo konání akce

Le Mans

Datum konání akce

29. 10. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000507953100035