Astrophysical fluids with particles

by Stephan Rosswog (Stockholm University)

Wednesday 3 Feb 2021, 13:30 → 14:30 Europe/Stockholm

https://stockholmuniversity.zoom.us/j/530682073

Nearly every astrophysical event involves gasdynamics of some form.

While computational gasdynamics is also commonly used in terrestrial/

engineering applications, astrophysics poses particular challenges and

in many cases it can be an interesting option to simulate the gas flow

with fully Lagrangian "computational particles" that move with the local

gas velocity.

In this talk I will review the basic properties of "Smooth Particle

Hydrodynamics" (SPH), a completely mesh-free method that is frequently

used in astrophysics (and actually also increasingly so in engineering

applications). I will further discuss a number of recent developments

in this field including the first Lagrangian hydrodynamics code in full

General Relativity.

Rosswog_2021-Feb-3.mp4