Many numerical techniques have been developed to solve the
hydrodynamic and collisionless particle equations in this limit.
For the hydrodynamic equations, the methods range from Eulerian
finite difference techniques [8,
18,
56] to unstructured particle methods [29,
34]. For the collisionless particle or dark matter equations, the
canonical choices are treecodes or PM and P
M methods [36], although many variants have been developed to optimize
computational performance and accuracy, including grid and
particle refinement methods. The reader is referred to [39] for a comparison of several different numerical methods applied
to a common problem of structure formation. A method for solving
non-equilibrium, multi-species chemical reaction flows together
with the hydrodynamic equations in a background FLRW model is
described in [1,
9].
![]() |
Physical and Relativistic Numerical Cosmology
Peter Anninos http://www.livingreviews.org/lrr-1998-2 © Max-Planck-Gesellschaft. ISSN 1433-8351 Problems/Comments to livrev@aei-potsdam.mpg.de |