Changes between Version 28 and Version 29 of doc/app/nesting_parameters

Timestamp:

May 20, 2021 10:50:49 AM (3 years ago)

Author:

hellstea

Comment:

--

doc/app/nesting_parameters

@@ -60 +60 @@
    END TYPE pmc_layout
 }}}
-{{{name}}} is the domain name given by the user. {{{id}}} is the number of the domain (can be arbitrarily chosen, but it would be good practise to number the domains in ascending order starting with 1), while {{{parent_id}}} gives the number of the domain in which this domain is embedded. The so-called ''root''-domain which includes all other ''nested''-domains should have the id 1. The ''root''-domain has no ''parent''-domain and must be given ''-1'' as its {{{parent_id}}}. {{{npe_total}}} is the number of PEs to be used for this domain. {{{lower_left_x}}} and {{{lower_left_y}}} are the coordinates in m of the south-left corner of the domain given in the root-model coordinate system. Note that the corner coordinates are always given in the root-coordinate system even for domains nested in another nested domain. More precisely, {{{lower_left_x}}} is measured from the u-node at i=0 and {{{lower_left_y}}} from the v-node at j=0. The ''root''-domain has {{{lower_left_x}}} = ''0.0'' and {{{lower_left_y}}} = ''0.0''. Note that {{{lower_left_x}}} must be integer divisible by the parent grid dx and similarly {{{lower_left_y}}} by the parent grid dy. A ''nested''-domain must be completely embedded in its ''parent''-domain and there has to be a clearance between the lateral nest boundaries and its parent boundaries. This clearance has to be at least four parent-grid cells in case of Wicker-Skamarock advection scheme and at least two parent-grid cells in case of Piaseck-Williams advection scheme. Possible parallel nests, including their ghost-cell layers, are not allowed to overlap. \\\\
+{{{name}}} is the domain name given by the user. {{{id}}} is the number of the domain (can be arbitrarily chosen, but it would be good practise to number the domains in ascending order starting with 1), while {{{parent_id}}} gives the number of the domain in which this domain is embedded. The so-called ''root''-domain which includes all other ''nested''-domains should have the id 1. The ''root''-domain has no ''parent''-domain and must be given ''-1'' as its {{{parent_id}}}. {{{npe_total}}} is the number of PEs to be used for this domain. {{{lower_left_x}}} and {{{lower_left_y}}} are the coordinates in metres of the south-left corner of the domain given in the root-model coordinate system. Note that the corner coordinates are always given in the root-coordinate system even for domains nested in another nested domain. More precisely, {{{lower_left_x}}} is measured from the u-node at i=0 and {{{lower_left_y}}} from the v-node at j=0. The ''root''-domain has {{{lower_left_x}}} = ''0.0'' and {{{lower_left_y}}} = ''0.0''. Note that {{{lower_left_x}}} must be integer divisible by the parent grid dx and similarly {{{lower_left_y}}} by the parent grid dy. A ''nested''-domain must be completely embedded in its ''parent''-domain and there has to be a clearance between the lateral nest boundaries and its parent boundaries. This clearance has to be at least four parent-grid cells in case of Wicker-Skamarock advection scheme and at least two parent-grid cells in case of Piaseck-Williams advection scheme. Possible parallel nests, including their ghost-cell layers, are not allowed to overlap. \\\\
 The following gives an example for defining a single nested-domain embedded in a root-domain:
 {{{