Lecture Canary Islands Winter School 2021

Numerical Cosmology and Galaxy Formation

Astrophysical Fluid Dynamics

Gravitational Dynamics

Movie Gallery

This is a selection of movies I have used in my lectures to illustrate basic but important concepts in gravitational dynamics and hydrodynamics.
You may use these movies for educational purposes as long as you give credit to the person listed for the corresponding movie.

Timesteps by Tadziu Hoffmann

• variable timestep
• fixed timestep
• fixed timestep with softening

(The movies use one frame per timestep. Where the timesteps are small, the movie appears to progress slowly.)

Gravitational Softening by Lucas Valenzuela

• particle clouds
• macro particles, no softening
• macro particles, high softening
• macro particles, low softening
• macro particles, best softening

Kelvin–Helmholtz in Advanced SPH by Tirso Marin

• SPH with viscosity and conductivity
• SPH, no viscosity
• SPH, no conductivity
• MFM Implementation

Kelvin–Helmholtz Classic SPH and Arepo by Maja Niemeyer and Klaus Dolag

• Classic SPH
• Arepo

Velocity Fields by Benjamin Seidel

• Magneticum Box2

Zoom-In COMPASS Simulation by David Schlachtberger

• Frog-In Zoom Simulation

Magneticum Simulations by Klaus Dolag

• Evolution of a Galaxy Cluster from Box2, see also www.magneticum.org

Cosmic Web by Rhea-Silvia Remus

• Cosmic Web at z=0, with Galaxy Clusters and Galaxy Groups highlighted

Nutation of a Kinematically Distinct Core by Tadziu Hoffmann

• Movement of a KDC from a Major Merger Simulation, see Schulze et al., 2017 for more details