Phase 2 of the Caltech ASC converging shock experiments.

A third gas is used. It is placed within the wedge after the lens. Perturbations on the contact between this gas and the lens gas will give rise to a Richtmyer-Meshkov instability, and the acceleration towards the apex will also have aspects of the Rayleigh-Taylor instablility.

Initially two preliminary calculations were been done in which the GFM boundary of the wedge and lens were omitted. Rather, they focus on a converging cyldrical shock interacting with a density contact only.

• Preliminary 2D test simulations
• Preliminary 3D test simulations

Following this simulations of the full configuration were done in 2D

• 2D Phase 2 simulations w/o explicit interface perturbations
• 2D Phase 2 simulations with interface perturbations
• 2D Phase 2 simulation with out the lens or interface perturbations

While full Phase 2 simulations have also been done in 3D

• Los-res: 3D Phase 2 simulations with interface perturbations
• medium-res: 3D Phase 2 simulations with interface perturbations
• Medium-res animation of Phase 2