Lecture 18 - Simulations Flashcards
1
Q
When are non-linear (magneto-)hydrodynamics simulations applicable?
A
Star formation Cosmological simulations of galaxies and cosmological structure Accretion Disks Exoplanetary atmospheres Stellar structure
2
Q
When are N-body simulations applicable?
A
Dark Matter Stellar clusters • In the absence of gas • Coupled to hydrodynamic simulations Planetary dynamics
3
Q
What is the principle behind smoothed particle hydrodynamics?
A
A smoothing kernel that weights closer neighbors more heavily
4
Q
How is the Courant number defined?
A
C=c_s*delta t/delta x
