===== Mesh generator for sunfluidh =====
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In the code Sunfluidh, the spatial discretization of equations is carried out on a cartesian staggered grid.\\
When the grid is regular (cell size is identical over the computational domain), the code build the mesh itself.
The user can also build a non-regular grid for sunfluidh by using the in-house software __**[[meshgen_doc| Meshgen]]**__.
<note important>
More regular is the mesh more accurate is the simulation. Several basic rules should be respected so far as it is permitted.
   * The cell-size ratio between two adjoined cells along any direction does not generally exceed 5%, especially in the strong gradient areas.
   * For every cell, the aspect ratio should be :\\ $$0.2 \le \frac {\Delta x_j}{\Delta X_i} \le 5$$ \\ This rule can be relaxed in some peculiar cases (weak gradient area, close-wall area, ...) 

</note>