Différences

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

--- sunfluidh:meshgen_doc [2017/12/13 09:05] – [Generate the grid with Meshgen] witko
+++ sunfluidh:meshgen_doc [2020/10/27 16:13] – yann
@@ Ligne 6: / Ligne 6: @@
   * Following the CFD code used, these nodes have different definitions :
     * For Chorus, they are the cell centers.
-    * For Sunfluidh, they are the cell-face locations.
+    * For Sunfluidh, they are the cell-face locations ($x_i, y_i, z_i$ see [[sunfluidh:sunfluidh_tools|the page "Overview ...", section "stagerred grid"]] for more details).
   * Several distribution laws are available :
     * Geometric functions
@@ Ligne 15: / Ligne 15: @@
 <note important>
- **For the class 5AF32, this step is automatically made by the install procedure.**
+ **For Sorbonne universite class, this step is automatically made by the install procedure.**
 </note>
-After downloading the Meshgen project from the server forge by means of svn:
+After downloading the Meshgen project from the server forge by means of svn (svn co –username your_login https://forge.limsi.fr/svn/MESHGEN/TRUNK)
    * go to the directory MESHGEN/TRUNK/SOURCES
    * Run the command make: The executable file meshgen.x is created.
@@ Ligne 30: / Ligne 30: @@
 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 defined by means of namelists that are described at the end of this page. The available functions are (click on it for details):
+Each distribution law is defined by means of namelists that are described at the end of this page.
-   * [[Reg_fct_meshgen | Regular function]] (Function_name= REGULAR_MESH)
+For illustrating how that works, let consider a domain length $L$ (in an arbitrary direction) split in $2$ parts with lengths $L_1$ and $L_2$ respectively over which discrete points are distributed ($N_1=6$ for the first segment, $N_2=8$ for the second one).
-   * [[TH1S_meshgen |Hyperbolic tangent function "one side"]] (Function_Name= TANH_ONE_SIDE_MESH)
+{{ :sunfluidh:mesh_distribution_1.jpg?direct&600 |}}
-   * [[TH2S_meshgen |Hyperbolic tangent function "two sides"]] (Function_Name= TANH_TWO_SIDES_MESH)
-   * [[GL_meshgen | Gauss-Lobatto distribution ]](Function_Name= GAUSS_LOBATTO_MESH)
-   * [[geom1_meshgen | Geometric series "type 1"]] (Function_Name= GEOMETRIC_SERIE_1_MESH)
+The available functions are (click on function name to get details):
-   * [[geom2_meshgen | Geometric series "type 2"]] (Function_Name= GEOMETRIC_SERIE_2_MESH)
+   * [[Reg_fct_meshgen | Regular function]] (Function_name= REGULAR)
+   * [[TH1S_meshgen |Hyperbolic tangent function "one side"]] (Function_Name= TANH_ONE_SIDE)
+   * [[TH2S_meshgen |Hyperbolic tangent function "two sides"]] (Function_Name= TANH_TWO_SIDES)
+   * [[GL_meshgen | Gauss-Lobatto distribution ]](Function_Name= GAUSS_LOBATTO)
+   * [[geom1_meshgen | Geometric series "type 1"]] (Function_Name= GEOMETRIC_SERIE_1)
+   * [[geom2_meshgen | Geometric series "type 2"]] (Function_Name= GEOMETRIC_SERIE_2)
 These functions get a specific data set :
@@ Ligne 68: / Ligne 73: @@
      *  In J-direction ---> write the value
      *  In K-direction ---> write the value
+==== Output files ====
 The grid data are recorded in the appropriate files that depend on the code previously selected: