A fully eulerian formulation for fluid-structure-interaction problems

• Verfasst von: Richter, Thomas [VerfasserIn]
• Titel: A fully eulerian formulation for fluid-structure-interaction problems
• Verf.angabe: Thomas Richter
• Jahr: 2013
• Umfang: 14 S.
• Fussnoten: Available online 13 September 2012 ; Gesehen am 11.01.2022
• Titel Quelle: Enthalten in: Journal of computational physics
• Ort Quelle: Amsterdam : Elsevier, 1961
• Jahr Quelle: 2013
• Band/Heft Quelle: 233(2013) vom: 15. Jan., Seite 227-240
• ISSN Quelle: 1090-2716
• DOI: doi:10.1016/j.jcp.2012.08.047
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Eulerian
• Sach-SW: Finite elements
• Sach-SW: Fluid-structure interaction
• Sach-SW: Interface-capturing
• Sach-SW: Monolithic
• K10plus-PPN: 1008754056

Abstract

In this work, we present a Fully Eulerian framework for fluid-structure interaction (fsi) problems coupling the incompressible Navier-Stokes equations with a hyperelastic solid. The Fully Eulerian framework is a monolithic implicit variational formulation for the coupled problem. In contrast to the well-established Arbitrary Lagrangian Eulerian (ALE) coordinates, the Fully Eulerian framework formulates both subproblems, fluid and solid, in Eulerian coordinates. This concept circumvents various difficulties connected to ALE coordinates since no artificial domain mapping is used. The formulation is an interface-capturing method and uses an extension of the solid’s deformation, the Initial Point Set, to detect the interface location. By construction, very large deformation as well as topology changes like contact of the solid to the domain boundary or other solid parts are possible.