Eulerian/Lagrangian Sharp Interface Schemes for Multimaterials

Yannick Gorsse (1, 2) , Angelo Iollo (2, 1) , Thomas Milcent (3)

1 MEMPHIS - Modeling Enablers for Multi-PHysics and InteractionS
2 IMB - Institut de Mathématiques de Bordeaux
3 I2M - Institut de Mécanique et d'Ingénierie de Bordeaux

We present multimaterial simulations using both Eulerian and Lagrangian schemes. The methods employed are based on classical Godunov-like methods that are adapted to treat the case of interfaces separating different materials. In the models considered, the gas, liquids, or elastic materials are described by specific constitutive laws, but the governing equations are the same. Examples of gas–gas and gas–elastic material interactions in one- and two-spatial dimensions are presented.

Mots clés: Acoustics; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Vibration; Dynamical Systems; Control

Domaines: Analyse numérique [math.NA]; Vibrations [physics.class-ph]

Yannick Gorsse, Angelo Iollo, Thomas Milcent. Eulerian/Lagrangian Sharp Interface Schemes for Multimaterials. Fluid-Structure-Sound Interactions and Control, Springer Berlin Heidelberg, pp.89-94, 2014, ⟨10.1007/978-3-642-40371-2_12⟩. ⟨hal-01089282⟩