2.4.1 Parameter of the following examples

Boundary conditions characterize the properties of real world hydrodynamic flows (more or less).

Linear 1D advection: infinite domain without boundaries.

Actual implementation in numerical experiments:

Adding and filling ghost cells
Number of ghost cells: depends on stencil
In examples: periodic boundary conditions

Grid settings:

$\begin{displaymath} i_\mathrm{total}=200 \enspace , \enspace n_\mathrm{total}=500 \enspace , \enspace \frac{\Delta t v_{}}{\Delta x} = 0.4 \end{displaymath}$

(104)

Initial condition: ``spikes''