Changes between Version 29 and Version 30 of doc/app/nesting_parameters

Timestamp:

Oct 4, 2021 3:00:58 PM (3 years ago)

Author:

suehring

Comment:

--

doc/app/nesting_parameters

@@ -70 +70 @@
 |----------------
 {{{#!td style="vertical-align:top"
+[=#homogeneous_initialization_child '''homogeneous_initialization_child''']
+}}}
+{{{#!td style="vertical-align:top"
+L
+}}}
+{{{#!td style="vertical-align:top"
+.F.
+}}}
+{{{#!td
+Controls the initialization of the child domains. If set to .FALSE., the child domain will be initialized by the 3D parent data. However, in the presence of complex topography and larger discrepancies between parent and child topography, it can happen that grid points in the child belong to the atmosphere but the corresponding parent grid points belong to topography. With a 3D initialization, topography-covered parent grid points will then be visible in the child domain as regions with zero values of the velocity components. In case the discrepancy between parent and child topography becomes huge (high grid-aspect ratios), this causes problems with the mass balance and can result in numerical instabilities. \\\\
+To overcome this, the nesting offers the possibility to initialize the child domain with area-averaged parent data, which area-averaging is performed over the respective child area. 
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
 [=#nesting_datatransfer_mode '''nesting_datatransfer_mode''']
 }}}