Modeling and simulation of compressible multi-material interface

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

1 IMB - Institut de Mathématiques de Bordeaux
2 MC2 - Modélisation, contrôle et calcul
3 I2M - Institut de Mécanique et d'Ingénierie de Bordeaux

We aim to simulate the interactions at the material interface of two compressible media. These interactions are modeled by a single fully Eulerian system of conservation laws. The materials differ by their constitutive laws, that can reproduce the mechanical characteristics of fluids or elastic solid. We illustrate the model with simulations of shock waves impinging on undulated interfaces, generating instabilities such as Richtmyer-Meshkov instabilities.

Mots clés: Multimaterial coupling; Eulerian frame; Elasticity

Domaines: Analyse numérique [math.NA]; Mécanique [physics.med-ph]

Alexia de Bauer, Yannick Gorsse, Angelo Iollo, Thomas Milcent. Modeling and simulation of compressible multi-material interface. 2nd ECCOMAS Young Investigators Conference (YIC 2013), Sep 2013, Bordeaux, France. ⟨hal-00989053⟩