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$$$$ FROT     NOTICE  CHAT      11/09/12    21:16:20     7124           
                                             DATE     11/09/12

  Operateur FROT                           Voir aussi :
    --------------   
    SYNTAXE ( EQEX ) : Cf operateur EQEX
    _________________

     'OPER' 'FROT' CK CB  'INCO' 'UN'
                  


     Description :
     _____________

  This operator discretizes the head loss term in the momentum equation
 in 2D or 3D
                                                                                
    Contents :
    __________
                                                                                
    the head loss tensor must be diagonal and defined in the global
 reference frame
                                 bx
         | Kx  0   0  || (u - u0)   |
         |            ||         by |
         | 0   Ky  0  || (v - v0)   |
         |            ||         bz |
         | 0   0   Kz || (w - w0)   |
                                                                                
                                                                                
    CK     head loss coefficient
           VECTEUR or CHPOINT VECT CENTRE or MOT
                                                                                
    CB
           VECTEUR or CHPOINT VECT CENTRE or MOT
                                                                                
    V0     relative velocity (default V0=0. 0. 0.)
           VECTEUR or CHPOINT VECT CENTRE or MOT
                                                                                
  When coefficients are of type MOT, the operator looks for data in INCO
  table at the index corresponding to the given name.


    Options : (EQEX)
    _________

 EFM1 formulation                     OPTION EFM1     default option
 explicite option                     OPTION EXPL     default option
 implicit option                      OPTION IMPL

 In this case it is necessary to return periodically to the mass consistency
 
 

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