Différences

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

--- sunfluidh:meshgen_doc [2020/01/14 08:49] – [Compilation procedure] witko
+++ sunfluidh:meshgen_doc [2020/10/27 16:28] – 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 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.\\
+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 (see the figure below). Discrete coordinates are distributed with a given law (by considering here $N_1=6$ for the first segment, $N_2=8$ for the second one). \\ The origin coordinate is not included in the procedure. It is added by the code.\\ The coordinate located at the upper end of the segment belongs to this segment, not to the following one.
+{{ :sunfluidh:mesh_distribution_1.jpg?direct&600 |}}
+The available distribution functions are (click on function name to get details):
    * [[Reg_fct_meshgen | Regular function]] (Function_name= REGULAR)
    * [[TH1S_meshgen |Hyperbolic tangent function "one side"]] (Function_Name= TANH_ONE_SIDE)