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Institute for Advanced Simulation (IAS)

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Simulation of Laser-Plasma Interactions

Simulation of Laser-Plasma interactions

Particle Acceleration, Transport and Optical Properties of Warm Dense Matter

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Side-by-side collision of two viscous vortex rings

Vortex Method for Hydrodynamics Simulations

Parallel vortex particle methods are an efficient technique for large-scale simulations of turbulent fluid flows. One of their big advantages is the intrinsic adaptivity of vortex particles, since computational elements exist only where the vorticity field is non-zero.

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Plasma-Wall Interaction

Simulations on Plasma-Wall Interactions

Magnetic plasma confinement can never be ideal, and is inherently compromised by the necessity to rid the burning plasma of ash products and replace the hydrogen fuel. Moreover, in most devices the plasma core is connected to the vessel walls by a magnetically non-confined outer region, leading to a powerful exchange of matter between the plasma and the solid container. The sheer complexity of this edge physics demands multi-scale, multi-physics modelling.
Together with IEK-4, we are developing models combining Monte Carlo particle transport and plasma chemistry with a self-consistent description of electrostatic fields and gyromotion in the presence of geometrically complex boundaries.

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Simulations in Astrophysics

In the formation process of stars, a protoplanetary disc evolves around the protostar. Most, if not all, of these stars originate from clusters with high fractions of multiple stars. In their early, embedded phases these clusters contain a significant gas component which eventually is removed by the strong winds of the massive stars.
We focus on two effects in the first Megayear of stellar/cluster evolution: The evolution of protoplanetary discs around the star and the effect of the ambient gas on a primordial binary population.

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Algorithms for Computational Plasma Physics

Algorithms for Computational Plasma Physics

Fast Coulomb solvers, Barnes-Hut Tree Code, Particle-In-Cell-code, SMPSs, Exascale Research