Preparation of boudary conditions determination Boundary faces of precedent step are used. Except at first time step, where arrays itypfb and itrifb are undefined.  
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| subroutine | precli (nvar, nscal, icodcl, rcodcl) | 
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Preparation of boudary conditions determination Boundary faces of precedent step are used. Except at first time step, where arrays itypfb and itrifb are undefined. 
      
        
          | subroutine precli | ( | integer | nvar, | 
        
          |  |  | integer | nscal, | 
        
          |  |  | integer, dimension(nfabor,nvarcl) | icodcl, | 
        
          |  |  | double precision, dimension(nfabor,nvarcl,3) | rcodcl | 
        
          |  | ) |  |  | 
      
 
- Parameters
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    | [in] | nvar | total number of variables |  | [in] | nscal | total number of scalars |  | [out] | icodcl | face boundary condition code: 
1 Dirichlet2 Radiative outlet3 Neumann4 sliding and 5 smooth wall and 6 rought wall and 9 free inlet/outlet (input mass flux blocked to 0)13 Dirichlet for the advection operator and Neumann for the diffusion operator  |  | [out] | rcodcl | boundary condition values: 
rcodcl(1) value of the dirichletrcodcl(2) value of the exterior exchange coefficient (infinite if no exchange)rcodcl(3) value flux density (negative if gain) in w/m2 or roughtness in m if icodcl=6
for the velocity for the pressure for a scalar   |