Manual pages | Cast3M

$$$$ DOMA     NOTICE  CHAT      11/09/12    21:15:55     7124           
                                             DATE     11/09/12

  Operateur DOMA                           Voir aussi :
    --------------   
    RES  = DOMA MOD1 MOT  ;




    Description:     This operator extracts objects from the
    ___________      preconditioning table of a 'NAVIER_STOKES'
                     or 'EULER' model.


    Comments :
    __________

    MOD1    : MMODEL object type 'NAVIER_STOKES' or 'EULER'
    MOT     : MOT    object to be selected in the following list.

    RES     : returned object


                              Returned object
      Key word            Type          Comments
      MAILLAGE          MAILLAGE      Mesh used for the discretization

      QUAF              MAILLAGE      Mesh (composed of QUAF element)
                                      given at model creation

      MACRO             MAILLAGE      (MACRO discretization only)
                                       Mesh composed of MACRO element

      SOMMET            MAILLAGE      Mesh composed of vertices

      CENTRE            MAILLAGE      Mesh composed of cell centers

      FACE              MAILLAGE      Mesh composed of face centers

      CENTREP1          MAILLAGE      Mesh composed of CENTREP1 points
                                      (non conforming P1 pressure)

      CENTREP0          MAILLAGE      Mesh composed of CENTREP0 points
                                      (non conforming P0 pressure)

      MSOMMET           MAILLAGE      Mesh composed of strict vertices
                                      i.e. (without mid - nodes)
                                      (Conforming P1 pressure)

      FACEL             MAILLAGE      connectivities (SEG3)
                                      ELEMENT->FACE->ELEMENT

      FACEL2            MAILLAGE      idem previous partitioned
                                      The SEG2s corresponds to
                                      boundary faces
      FACEP             MAILLAGE      connectivities FACE->SOMMET
                                      (of the face)
      ELTFA             MAILLAGE      connectivities ELEMENT->FACE

      MMAIL             MAILLAGE      connectivities corresponding
                                      to MSOMMET

      ENVELOPP          MAILLAGE      QUAF oriented connectivities
                                      of the enveloppe (resp. contour)

      MAILFACE          MAILLAGE      faces connectivities of the QUAF
                                      mesh used to construct the model

      ARETE             MAILLAGE      element edge connectivities of the
                                      QUAF mesh used to construct the model

   The following key words give geometrical informations stored in
   a CHPOINT

      VOLUME     CHPOINT  SCAL CENTRE containing the element volume
      DIAMAX     CHPOINT  SCAL CENTRE max diameter.
      DIAMIN     CHPOINT  SCAL CENTRE min diameter.
      NORMALEV   CHPOINT  VECT SOMMET components of the normal at
                          the vertices of the ENVELOPPE
      NORMALE    CHPOINT  VECT FACE   components of the normal
                          associated to each element faces
      SURFACE    CHPOINT  SCAL FACE   containing faces area
      ORIENTAT   CHAMELEM containing the faces orientation of an
           element by predefined normals.

      XXDIAGSI   CHPOINT  SCAL SOMMET Diagonal mass matrix for SOMMET
                 points.

      XXVOLUM    CHPOINT  SCAL CENTRE Diagonal mass matrix for CENTRE
                 points.

      XXCTREP1   CHPOINT  SCAL CENTRE Diagonal mass matrix for CENTREP1
                 points.

      XXCTREP0   CHPOINT  SCAL CENTRE Diagonal mass matrix for CENTREP0
                 points.

      XXMSOMME   CHPOINT  SCAL CENTRE Diagonal mass matrix for MSOMMET
                 points.

   The diagonal mass matrix values give the volumes of each element
 around a point. The sum of the CHPOINT gives the volume of the domain.
 This CHPOINT to the power 1/IDIM gives the length scale of each 
 element around a mesh point.


   The instruction :
   TAB = DOMA MOD1 'TABLE' ;
   allows to get the whole preconditioning table

 
   'EULER' MODEL
   _____________

   If we are dealing with a 'EULER' model, we have firstly to create the 
   connectivity table, i.e.:

   TAB1 = 'DOMA' MMODE 'VF' ;

   where

   TAB1 is the connectivity table
   MMODE is the EULER model we are dealing with.

   Warning: in this particular case, the DOMA operator creates some
   new points, i.e. the centers of the faces and of the elements.