Différences

Ci-dessous, les différences entre deux révisions de la page.

--- sunfluidh:meshgen_doc [2017/12/02 16:47] – yann
+++ sunfluidh:meshgen_doc [2017/12/02 17:16] – yann
@@ Ligne 69: / Ligne 69: @@
 In the data file, each block of data is attributed to a direction (I,J or K).\\
 Each direction can be split in several parts (segments) on which a specific distribution law is applied in order to place the discrete nodes.\\
-Each distribution law is associated to a function defined by a namelist. The available functions are :
+Each distribution law is defined by means of namelists that are described at the end of this page. The available functions are :
    * Regular function (Function_name= REGULAR_MESH)
    * Hyperbolic tangent function "one side" (Function_Name= TANH_ONE_SIDE_MESH)
@@ Ligne 85: / Ligne 85: @@
    * End_of_Block_Data : logical set to .true. to declare the end of a data structure (by default it set to .false. by the program)
-__**A complete template is provided at the end of this page.**__
+__A complete template is provided below.__
 <note important>
@@ Ligne 93: / Ligne 93: @@
 The block of data must be closed with the special namelist \\ &MESH_FUNCTION_DATA End_of_Data_Block = .true./
 </note>
-==== Template for each function ====
+==== Templates for each function ====
 <file template>
 &METRIC_UNIT Type_of_Metric= 0 /         ---> Used to define the metric unit
@@ Ligne 105: / Ligne 105: @@
 &MESH_FUNCTION_DATA  End_of_Data_Block= .true.        /
 </file>
+==== Generate the grid with Meshgen ====
+After setting the data set in the file "data_meshgen.dat", run the command "meshgen.x".
+Few questions are asked :
+   * Choice of CFD code : OLORIN or SUNFLUIDH (1) CHORUS (2) ---> tape the correct option
+   * MPI domain decomposition (1) or not (0) ---> tape the correct option
+For the case of MPI domain decomposition, further information is required to perform the appropriate domain decomposition
+   * number of domain decomposition per direction
+     *  In I-direction
+     *  In J-direction
+     *  In K-direction
+The grid data are recorded in the appropriate files that depend on the code previously selected:
+    * For Chorus : maille_yyyyy.dat : data are recorded in binary format. "yyyyy" is the number of the associated subdomain.
+    * For sunfluidh : maillx_yyyyy.dat, maillx_yyyyy.dat and maillz_yyyyy.dat (one file per direction): data are recorded in ASCII format and ordered in two colums, the first one is the cell-index, the second one is the coordinate of the upper face of the cell.