Manual pages | Cast3M

$$$$ SGE      NOTICE  CHAT      11/09/12    21:18:04     7124           
                                             DATE     11/09/12
                                                                                
  Procedure SGE                            Voir aussi :
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    SYNTAXE ( EQEX ) :   Cf operateur EQEX:
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    ZONE  $M     'OPER'  'SGE' 'RO' 'UN' 'MU'     'INCO' 'UN'



                                                                                
                                                                                
     Description :
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 This procedure computes the subgrid viscosity for the Smagorinsky model:
                              t
  MUs= Cs H**2. |Grad U + Grad U | where
 Cs is the Smagorinsky constant (Cs=0.01), H the local mesh size.
 MUs is homogenious to a dynamic viscosity (Kg/m/s).
 The effects due to the temperature are not taking into account
 actually.
 The result is put in the 'INCO' table at 'NUT' entry
 CHPOINT (SCAL SOMMET).
                                                                                
    Commentaires
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    $M     NAVIER_STOKES model

           MMODEL

    RO     Density
           FLOTTANT ou CHPOINT SCAL SOMMET ou MOT

    U      Mean velocity field
           CHPOINT (VECT SOMMET)
                                                                                
    MU     molecular dynamic viscosity
           FLOTTANT or CHPOINT SCAL SOMMET or MOT

  When coefficients are of type MOT, the operator looks for data in INCO
  table at the index corresponding to the given name.