Discontinuous Galerkin method for compressible flow with low Mach numbers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F15%3A00450334" target="_blank" >RIV/61388998:_____/15:00450334 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Discontinuous Galerkin method for compressible flow with low Mach numbers

Popis výsledku v původním jazyce

We will deal with compressible viscous flow in a bounded domain, which can be described by the system of the Navier-Stokes equations. For discretization in space we employ the discontinuous Galerkin method (DGM), which takes advantages from the finite volume method as well as from the finite element method. In the time discretization we use the n-step backward difference formula (BDF). It is well-known, that compressible flow with very low Mach numbers is very close to incompressible flow. In our numerical experiments we consider a channel with two bumps, which represent a simplified model of vocal folds. The results concerning the comparison of the compressible flow and incompressible flow are presented.

Název v anglickém jazyce

Discontinuous Galerkin method for compressible flow with low Mach numbers

Popis výsledku anglicky

We will deal with compressible viscous flow in a bounded domain, which can be described by the system of the Navier-Stokes equations. For discretization in space we employ the discontinuous Galerkin method (DGM), which takes advantages from the finite volume method as well as from the finite element method. In the time discretization we use the n-step backward difference formula (BDF). It is well-known, that compressible flow with very low Mach numbers is very close to incompressible flow. In our numerical experiments we consider a channel with two bumps, which represent a simplified model of vocal folds. The results concerning the comparison of the compressible flow and incompressible flow are presented.

Druh

O - Ostatní výsledky

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GAP101%2F11%2F0207" target="_blank" >GAP101/11/0207: Sdružené úlohy mechaniky tekutin a těles - nelineární aeroelasticita</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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