Changes between Version 27 and Version 28 of Users/Model Interfacing/AGRIF


Ignore:
Timestamp:
2018-09-03T16:21:27+02:00 (2 years ago)
Author:
clem
Comment:

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  • Users/Model Interfacing/AGRIF

    v27 v28  
    3434 
    3535[[span(''Add some plots here with grid staggering and positioning ?'', style=background-color:lime)]] 
     36 
     37When creating the nested domain, one must keep in mind that the child domain is shifted toward north-east and depends on the number of ghost cells as illustrated by the (attempted) drawing below for nbghostcells=1 and nbghostcells=3   
     38{{{#!imagebox 
     39[[Image(agrif_grid_position.jpg,width=600)]] 
     40}}} 
    3641 
    3742Note that rectangular regions must be defined so that they are connected to a single parent grid. Hence, defining overlapping grids with the same refinement ratio will not work properly, boundary data exchange and update being only performed between root and child grids. Use of east-west periodic or north-fold boundary conditions is not allowed in child grids either. Defining for instance a circumpolar zoom in a global model is therefore not possible.