ProgressionZLower¶

Type:	float
Range:	[0, inf]
Default:	2.0
Appearance:	simple

The layer discretization in $z$ -direction, $[z_0, z_1, \dots, z_N]$ , is controlled by the maximum side length parameter MaximumSidelengthZ for the entire layer, that is,

$\begin{eqnarray*} z_{i+1}-z_{i} & \leq & \mathrm{MaximumSidelengthZ}, \end{eqnarray*}$

and the maximum side length at the lower interface (MaximumSidelengthZLower), i.e.

$\begin{eqnarray*} z_{1}-z_{0} & \leq & \mathrm{MaximumSidelengthZLower}. \end{eqnarray*}$

With this parameter it is controlled how aggressively the mesh is coarsened with larger distance to the lower interface. It is guaranteed that,

$\begin{eqnarray*} \frac{z_{i+2}-z_{i+1}}{z_{i+1}-z_{i}} & \leq & \mathrm{ProgressionZLower} \end{eqnarray*}$