ProgressionZLowerΒΆ

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*}