Introduction
The following pages show some examples
of
numerical works made at the Observatoire de Paris, in the domain of astrophysical
fluids.
The examples shown, pictures, films, etc... are those
which were available when we asked for contributions to this first edition.
So, this presentation is not exhaustive.
-
Astrophysics: all that
is outside Earth; it includes the magnetosphere
-
Fluids: collection of
a very large number of particles. This includes plasmas
conducting the electric currents (charged particles, often with
a mean magnetic field), and also star
clusters, galaxy clusters...
-
Equations: Hydrodynamics
(Navier-Stokes), Magnetohydrodynamics (MHD), Vlasov, Newton (N-body). They
can be written in a rotating frame, gravity (or self-gravity) can be present...
-
Numerical Simulations:
solutions of the equations (generally time-dependent, with at least 2 dimensions
for space) that are obtained using a mixture of intuition, technique and
applied mathematics (numerical analysis)...
and a computer.
The results of the simulations are shown in the form of pictures
and/or
films.
We hope that the comparison of
these pictures with observations of real objects will stimulate your imagination.
Acknowledgments:
RG
thanks Alain Hui-Bon-Hoa
for fruitful discussions and help in writing these web pages
^