A simple Cartesian scheme for compressible multimaterials
Provides a unified, simple scheme for multimaterial compressible flow simulations, but the approach appears incremental as it builds on existing Eulerian methods.
The authors present a simple Eulerian numerical method for simulating interactions between two non-miscible compressible materials (e.g., gas-gas, gas-water, gas-elastic solid) with significantly different properties, demonstrating stability in large deformation regimes.
We present a simple numerical method to simulate the interaction of two non-miscible compressible materials separated by an interface. The media considered may have significantly different physical properties and constitutive laws, describing for example fluids or hyperelastic solids. The model is fully Eulerian and the scheme is the same for all materials. We show stiff numerical illustrations in case of gas--gas, gas--water, gas--elastic solid interactions in the large deformation regime.