On Comparison of Suitable interpolations for Finite Element Meshes Respecting Physical Laws

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F22%3A00361647" target="_blank" >RIV/68407700:21220/22:00361647 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

On Comparison of Suitable interpolations for Finite Element Meshes Respecting Physical Laws

Popis výsledku v původním jazyce

This paper is devoted to the interpolation between two computational finite element meshes. Such interpolation of FE solution onto a new mesh is needed in many applications like material cutting, casting, welding, etc., or in the numerical simulation of fluid-structure interaction with large displacements, where a computational flow mesh quality can significantly deteriorate. In this talk we are interested in the interpolation with restrictions as introduced by authors Pont & Codina, 2017. They proposed to combine a computationally cheap interpolation method together with constraints in the form of Lagrange multipliers which enforce conservation of de- sired quantities, like e.g. total mass, kinetic energy or potential energy. This approach respects physical laws and it is efficient, on the other hand its disadvantage is only a global conserva- tion of physical quantities not the local one. The numerical results consist of comparison of the Lagrange interpolation and the natural neighbour as representatives of cheap interpolation methods on a few test cases.

Název v anglickém jazyce

On Comparison of Suitable interpolations for Finite Element Meshes Respecting Physical Laws

Popis výsledku anglicky

This paper is devoted to the interpolation between two computational finite element meshes. Such interpolation of FE solution onto a new mesh is needed in many applications like material cutting, casting, welding, etc., or in the numerical simulation of fluid-structure interaction with large displacements, where a computational flow mesh quality can significantly deteriorate. In this talk we are interested in the interpolation with restrictions as introduced by authors Pont & Codina, 2017. They proposed to combine a computationally cheap interpolation method together with constraints in the form of Lagrange multipliers which enforce conservation of de- sired quantities, like e.g. total mass, kinetic energy or potential energy. This approach respects physical laws and it is efficient, on the other hand its disadvantage is only a global conserva- tion of physical quantities not the local one. The numerical results consist of comparison of the Lagrange interpolation and the natural neighbour as representatives of cheap interpolation methods on a few test cases.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20304 - Aerospace engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

PROCEEDINGS OF COMPUTATIONAL MECHANICS 2022

ISBN

978-80-261-1116-0

ISSN

—

e-ISSN

—

Počet stran výsledku

4

Strana od-do

161-164

Název nakladatele

Západočeská univerzita v Plzni

Místo vydání

Plzeň

Místo konání akce

Srní

Datum konání akce

7. 11. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—