
TY  - JOUR
A1  - Knebe, Alexander 
T1  - How to Simulate the Universe in a Computer
JF  - Publications of the Astronomical Society of Australia
JO  - Publ. Astron. Soc.  Aust.
Y1  - 2005
VL  - 22
IS  - 3
SP  - 184
EP  - 189
KW  - cosmology: theory &#8211; cosmology: dark matter &#8211; methods: N-body simulations &#8211; methods: numerical
UR  - https://doi.org/10.1071/AS04059 
N2  - In this contribution a broad overview of the methodologies of cosmological N-body simulations and a short introduction explaining the general idea behind such simulations is presented. After explaining how to set up the initial conditions using a set of N particles two (diverse) techniques are presented for evolving these particles forward in time under the influence of their self-gravity. One technique (tree codes) is solely based upon a sophistication of the direct particle&#8211;particle summation whereas the other method relies on the continuous (de-)construction of arbitrarily shaped grids and is realized in adaptive mesh refinement codes. 
ER  -

