Solving of NS equations for incompressible or slightly compressible flows for one time step. Both convection-diffusion and continuity steps are performed. The velocity components are solved together in once.  
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| subroutine | navstv (nvar, nscal, iterns, icvrge, itrale, isostd, dt, rtp, rtpa, propce, coefa, coefb, frcxt, prhyd, trava, ximpa, uvwk) | 
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Solving of NS equations for incompressible or slightly compressible flows for one time step. Both convection-diffusion and continuity steps are performed. The velocity components are solved together in once. 
      
        
          | subroutine navstv | ( | integer | nvar, | 
        
          |  |  | integer | nscal, | 
        
          |  |  | integer | iterns, | 
        
          |  |  | integer | icvrge, | 
        
          |  |  | integer | itrale, | 
        
          |  |  | integer, dimension(nfabor+1) | isostd, | 
        
          |  |  | double precision, dimension(:), pointer | dt, | 
        
          |  |  | double precision, dimension(:,:), pointer | rtp, | 
        
          |  |  | double precision, dimension(:,:), pointer | rtpa, | 
        
          |  |  | double precision, dimension(:,:), pointer | propce, | 
        
          |  |  | double precision, dimension(nfabor,*) | coefa, | 
        
          |  |  | double precision, dimension(nfabor,*) | coefb, | 
        
          |  |  | double precision, dimension(:,:), pointer | frcxt, | 
        
          |  |  | double precision, dimension(:), pointer | prhyd, | 
        
          |  |  | double precision, dimension(:,:), pointer | trava, | 
        
          |  |  | double precision, dimension(:,:,:), pointer | ximpa, | 
        
          |  |  | double precision, dimension(:,:), pointer | uvwk | 
        
          |  | ) |  |  | 
      
 
- Parameters
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    | [in] | nvar | total number of variables |  | [in] | nscal | total number of scalars |  | [in] | iterns | index of the iteration on Navier-Stokes |  | [in] | icvrge | indicator of convergence |  | [in] | itrale | number of the current ALE iteration |  | [in] | isostd | indicator of standar outlet +index of the reference face |  | [in] | dt | time step (per cell) |  | [in,out] | rtp,rtpa | calculated variables at cell centers (at current and previous time steps) |  | [in] | propce | physical properties at cell centers |  | [in] | coefa,coefb | boundary conditions |  | [in] | frcxt | external force generating the hydrostatic pressure |  | [in] | prhyd | hydrostatic pressure predicted at cell centers |  | [in] | trava | work array for pressure velocity coupling |  | [in] | ximpa | work array for pressure velocity coupling |  | [in] | uvwk | work array for pressure velocity coupling |