- Ketan Mittal, Lawrence Livermore National Laboratory
- Nabil Atallah, Duke University
- Vladimir Tomov, Lawrence Livermore National Laboratory
- Guglielmo Scovazzi, Duke University
- Robert Rieben, Lawrence Livermore National Laboratory
This mini-symposium will focus on numerical methods for treatment of material interfaces in the context of shock hydrodynamics simulations. Such computations have applications in a wide range of physics and engineering scenarios, including detonations, inertial confinement fusion, high-velocity projectile impacts, and behavior of materials under extreme conditions. The nonlinear interactions between shock waves and material interfaces lead to complex physical behavior that is difficult to model numerically. This, along with the practical importance of such phenomena, makes multi-material shock hydrodynamics an active area of research in many national labs and universities.
The aim of this mini-symposium is to gather the world's foremost experts in numerical shock hydrodynamics and discuss recent advances in topics like mixed-cell closure models, accurate volume fraction representation and evolution, subcell interface reconstruction, and embedded/immersed sharp interface approaches. The usual challenges for the above approaches include the appearance of nonphysical solution states, spurious pressure oscillations, large interface deformations, and excessive material propagation/diffusion.
Although multi-material methods are the main focus of the mini-symposium, relevant topics arising in single-material hydrodynamics will also be considered. These include shock fitting, improved artificial viscosities, physics-preserving discretizations, radiation hydrodynamics, field transfer (remap) methods, and other novel discretization techniques for shock hydrodynamics.