Lagrangian sharp interface schemes for multimaterials

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

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

We present multi-material simulations in the Lagrangian framework. 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 elastic-elastic material interactions are presented.

Mots clés: Compressible multimateria; Lagrangian elasticity; Hllc riemann solver

Domaines: Analyse numérique [math.NA]; Mécanique des fluides [physics.class-ph]; Bibliothèque électronique [cs.DL]

Thomas Milcent, Angelo Iollo. Lagrangian sharp interface schemes for multimaterials. ECCOMAS Young Investigators Conference (YIC 2013)(2;2013; Bordeaux), Sep 2013, Bordeaux, France. 4p. ⟨hal-01089300⟩