Skip to Main content Skip to Navigation
Theses

Analyse d'une méthode de couplage entre un fluide compressible et une structure déformable

Abstract : This work aims at the numerical simulation of compressible fluid/deformable structure interactions. In particular, we have developed a partitioned coupling algorithm between a Finite Volume method for the compressible uid and a Discrete Element method capable of taking into account fractures in the solid. A survey of existing fictitious domain methods and partitioned algorithms has led to choose an Embedded Boundary method and an explicit coupling scheme. We first showed that the Discrete Element method used for the solid yielded the correct macroscopic behaviour and that the symplectic time-integration scheme ensured the preservation of energy. We then developed an explicit coupling algorithm between a compressible inviscid fluid and an undeformable solid. Mass, momentum and energy conservation and consistency properties were proved for the coupling scheme. The algorithm was then extended to the coupling with a deformable solid, in the form of a semi-implicit scheme. Finally, we applied this method to unsteady inviscid flows around moving structures : comparisons with existing numerical and experimental results demonstrate the excellent accuracy of our method.
Document type :
Theses
Complete list of metadata

Cited literature [5 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00658152
Contributor : Laurent Monasse Connect in order to contact the contributor
Submitted on : Tuesday, January 10, 2012 - 2:55:23 AM
Last modification on : Friday, November 27, 2020 - 8:46:01 AM
Long-term archiving on: : Monday, November 19, 2012 - 1:06:32 PM

Identifiers

  • HAL Id : tel-00658152, version 1

Collections

Citation

Laurent Monasse. Analyse d'une méthode de couplage entre un fluide compressible et une structure déformable. Analyse numérique [math.NA]. Université Paris-Est, 2011. Français. ⟨tel-00658152⟩

Share

Metrics

Record views

469

Files downloads

364