2 papers
astro-ph.IM2026
Particle hydrodynamics with accurate gradients: a comparison of different formulations
S. Rosswog
We compare here several modern versions of SPH with a particular focus on the impact of gradient accuracy. We examine specifically an approximation to the "linearly exact" gradient…
astro-ph.IM2019
A simple, entropy-based dissipation trigger for SPH
Stephan Rosswog
Smoothed Particle Hydrodynamics (SPH) schemes need to be enhanced by dissipation mechanisms to handle shocks. Most SPH formulations rely on artificial viscosity and while this is w…