TALK=T;RUN(1,1)
  PHOTON USE
  p
  n4



  up z
  msg contours of S at time = 0.1s
  con s1 x 1 sh;.49 .52 40
  msg velocity vectors
  vec x 1
  MSG Press Enter to continue
  pause
  p
  n8



  up z
  msg contours of S at time = 0.20s
  con s1 x 1 sh;.49 .52 40
  msg velocity vectors
  vec x 1
  MSG Press Enter to continue
  pause
  p
  n12



  up z
  msg contours of S at time = 0.35s
  con s1 x 1 sh;.49 .52 40
  msg velocity vectors
  vec x 1
  MSG Press Enter to continue
  pause
  p
  n16



  up z
  msg contours of S at time = 0.40s
  con s1 x 1 sh;.49 .52 40
  msg velocity vectors
  vec x 1
  MSG Press Enter to continue
  pause
  p
  n20



  up z
  msg contours of S at time = 0.50s
  con s1 x 1 sh;.49 .52 40
  msg velocity vectors
  vec x 1
  MSG Press Enter to continue
  pause
  p
  n24



  up z
  msg contours of S at time = 0.60s
  con s1 x 1 sh;.49 .52 40
  msg velocity vectors
  vec x 1
  MSG Press Enter to continue
  pause
  p
  n28



  up z
  msg contours of S at time = 0.70s
  con s1 x 1 sh;.49 .52 40
  msg velocity vectors
  vec x 1
  MSG Press Enter to continue
  pause
  p
  n32



  up z
  msg contours of S at time = 0.80s
  con s1 x 1 sh;.49 .52 40
  msg velocity vectors
  vec x 1
  MSG Press Enter to continue
  pause
  p
  n36



  up z
  msg contours of S at time = 0.90s
  con s1 x 1 sh;.49 .52 40
  msg velocity vectors
  vec x 1
  MSG Press Enter to continue
  pause
  p
  n40



  up z
  msg contours of S at time = 1.0s
  con s1 x 1 sh;.49 .52 40
  msg velocity vectors
  vec x 1
  msg            -
  msg Press e to END
  enduse
  DISPLAY
  This case simulates the slumping of a  liquid column that may
  arise, for example, when container walls break down. In
  addition an obstacle can be errected in the path of the liquid.

               liquid
            |   column
            |------                   z ^
            | - - |                     |
            |  -  |                     +----->
            | --  |      | wall              y
            |  -- |      |
            |_____|______|___
            /////////////////

  The run  shows  that use of PLANT results in compact Q1 coding to
  introduce the basic features of SEM method.  It  should  be  also
  noted  that  upwind convection scheme may not perform well enough
  suffering exessive false diffusion.  The low  dispersion  schemes
  give  significantly  higher  accuracy  in  free  surface location
  calculation.  For more details and comparison with experiment see
  the  entry  SEM  of  PHOENICS  2.0 and older and references cited
  therein. One of them,  namely, of C.W.Hirt and B.D. Nichols in J.
  Comput. Phys., v. 39, 1981, pp.201- , is openly available.

  ENDDIS
  PLANTBEGIN
  ** Efective pressure gradient sources
PATCH(DPDZ,CELL,1,NX,1,NY,1,NZ,1,lstep)
   VAL=(1.-1./(1000.*S1+(1.-S1)))*AHIGH*(HIGH(P1)-P1)
COVAL(DPDZ,W1,FIXFLU,GRND)

PATCH(DPDY,CELL,1,NX,1,NY,1,NZ,1,lstep)
   VAL=(1.-1./(1000.*S1+(1.-S1)))*ANORTH*(NORTH(P1)-P1)
COVAL(DPDY,V1,FIXFLU,GRND)
  PLANTEND
 ************************************************************
  Group 1. Run Title and Number
 ************************************************************
 ************************************************************
 
 TEXT( Slumping of a liquid column by SEM meth)
 
 ************************************************************
 ************************************************************
 
 IRUNN = 1 ;LIBREF = 146
 ************************************************************
  Group 2. Time dependence
 STEADY = F
    * Set overall time and no. of steps
 TFIRST =0. ;TLAST =1.
 FSTEP = 1 ;LSTEP = 40
   Method of pairs used for grid setting.
 TFRAC(2)=0.025
 ************************************************************
  Group 3. X-Direction Grid Spacing
 CARTES = T
 NX = 1
 XULAST =1.
 XFRAC(1)=1.
 ************************************************************
  Group 4. Y-Direction Grid Spacing
 NY = 10
 YVLAST =2.
 YFRAC(1)=0.1 ;YFRAC(2)=0.2
 YFRAC(3)=0.3 ;YFRAC(4)=0.4
 YFRAC(5)=0.5 ;YFRAC(6)=0.6
 YFRAC(7)=0.7 ;YFRAC(8)=0.8
 YFRAC(9)=0.9 ;YFRAC(10)=1.
 ************************************************************
  Group 5. Z-Direction Grid Spacing
 PARAB = F
 NZ = 10
 ZWLAST =0.5
 ZFRAC(1)=0.1 ;ZFRAC(2)=0.2
 ZFRAC(3)=0.3 ;ZFRAC(4)=0.4
 ZFRAC(5)=0.5 ;ZFRAC(6)=0.6
 ZFRAC(7)=0.7 ;ZFRAC(8)=0.8
 ZFRAC(9)=0.9 ;ZFRAC(10)=1.
 ************************************************************
  Group 6. Body-Fitted Coordinates
 ************************************************************
  Group 7. Variables: STOREd,SOLVEd,NAMEd
 ONEPHS = T
 NAME(1)=P1 ;NAME(5)=V1
 NAME(7)=W1 ;NAME(150)=S1
    * Y in SOLUTN argument list denotes:
    * 1-stored 2-solved 3-whole-field
    * 4-point-by-point 5-explicit 6-harmonic averaging 
 SOLUTN(P1,Y,Y,N,N,N,N)
 SOLUTN(V1,Y,Y,N,N,N,N)
 SOLUTN(W1,Y,Y,N,N,N,N)
 SOLUTN(S1,Y,Y,N,N,N,Y)
 ************************************************************
  Group 8. Terms & Devices
    * Y in TERMS argument list denotes:
    * 1-built-in source 2-convection 3-diffusion 4-transient
    * 5-first phase variable 6-interphase transport         
 TERMS(P1,Y,Y,Y,N,Y,Y)
 TERMS(V1,Y,Y,Y,Y,Y,Y)
 TERMS(W1,Y,Y,Y,Y,Y,Y)
 TERMS(S1,N,Y,N,Y,Y,Y)
 DIFCUT =0.5 ;ZDIFAC =1.
 GALA = T ;ADDDIF = F
 ISOLX = -1 ;ISOLY = -1 ;ISOLZ = -1
 ************************************************************
  Group 9. Properties used if PRPS is not
  stored, and where PRPS = -1.0 if it is!
 RHO1 =1. ;TMP1 =0.
 EL1 =0.
 TSURR =0. ;TEMP0 =0.
 PRESS0 =0.
 DVO1DT =0. ;DRH1DP =0.
 EMISS =0. ;SCATT =0.
 RADIA =0. ;RADIB =0.
 ENUL =1.0E-05 ;ENUT =0.
 PRNDTL(V1)=1. ;PRNDTL(W1)=1.
 PRT(V1)=1. ;PRT(W1)=1.
 CP1 =1. ;CP2 =1.
 ************************************************************
  Group 10.Inter-Phase Transfer Processes
 ************************************************************
  Group 11.Initial field variables (PHIs)
 FIINIT(P1)=0. ;FIINIT(V1)=0.
 FIINIT(W1)=0. ;FIINIT(S1)=0.
 
 PATCH(LIQUID ,INIVAL, 1, 1, 1, 5, 1, 5, 1, 1)
 INIT(LIQUID ,S1 ,0. ,1. )
 INIADD = F
 FSWEEP = 1
 NAMFI =CHAM
 ************************************************************
  Group 12. Patchwise adjustment of terms
  Patches for this group are printed with those
  for Group 13.
  Their names begin either with GP12 or &
 ************************************************************
  Group 13. Boundary & Special Sources
 
 PATCH(REFP ,CELL , 1, 1, 1, 10, 10, 10, 1, 40)
 COVAL(REFP ,P1 ,1. ,0. )
 
 PATCH(GRAV ,PHASEM, 1, 1, 1, 10, 1, 10, 1, 40)
 COVAL(GRAV ,W1 , FIXFLU ,-9.81 )
 
 PATCH(DPDZ ,CELL , 1, 1, 1, 10, 1, 10, 1, 40)
 COVAL(DPDZ ,W1 , FIXFLU , GRND )
 
 PATCH(DPDY ,CELL , 1, 1, 1, 10, 1, 10, 1, 40)
 COVAL(DPDY ,V1 , FIXFLU , GRND )
 XCYCLE = F
 EGWF = T
 WALLCO = GRND2
 ************************************************************
  Group 14. Downstream Pressure For PARAB
 ************************************************************
  Group 15. Terminate Sweeps
 LSWEEP = 10 ;ISWC1 = 1
 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
 SELREF = T
 RESFAC =1.0E-04
 ************************************************************
  Group 16. Terminate Iterations
 LITER(P1)=20 ;LITER(V1)=10
 LITER(W1)=10 ;LITER(S1)=1
 ENDIT(P1)=1.0E-03 ;ENDIT(V1)=1.0E-03
 ENDIT(W1)=1.0E-03 ;ENDIT(S1)=1.0E-03
 ************************************************************
  Group 17. Relaxation
 RELAX(P1,LINRLX,1.)
 RELAX(V1,FALSDT,0.1)
 RELAX(W1,FALSDT,0.1)
 RELAX(S1,FALSDT,1.0E+09)
 OVRRLX =0.
 EXPERT = F ;NNORSL = F
 ************************************************************
  Group 18. Limits
 VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-1.0E+10
 VARMAX(V1)=1.0E+06 ;VARMIN(V1)=-1.0E+06
 VARMAX(W1)=1.0E+06 ;VARMIN(W1)=-1.0E+06
 VARMAX(S1)=1. ;VARMIN(S1)=0.
 ************************************************************
  Group 19. Data transmitted to GROUND
 NAMSAT =MOSG
 PARSOL = F
 ISG62 = 1
 SPEDAT(SET,GXMONI,TRANSIENT,L,F)
 ************************************************************
  Group 20. Preliminary Printout
 DISTIL = T ;NULLPR = F
 NDST = 0
 DSTTOL =1.0E-02
 EX(P1)=70.82 ;EX(V1)=0.4885
 EX(W1)=0.1421 ;EX(S1)=0.134
 ************************************************************
  Group 21. Print-out of Variables
 INIFLD = F ;SUBWGR = F
    * Y in OUTPUT argument list denotes:
    * 1-field 2-correction-eq. monitor 3-selective dumping      
    * 4-whole-field residual 5-spot-value table 6-residual table
 OUTPUT(P1,Y,Y,Y,Y,Y,Y)
 OUTPUT(V1,Y,Y,Y,Y,Y,Y)
 OUTPUT(W1,Y,Y,Y,Y,Y,Y)
 OUTPUT(S1,Y,Y,Y,Y,Y,Y)
 ************************************************************
  Group 22. Monitor Print-Out
 IXMON = 1 ;IYMON = 5 ;IZMON = 5
 NPRMON = 100000 ;NPRMNT = 1 ;TSTSWP = -1
 UWATCH = T ;USTEER = T
 HIGHLO = F
 ************************************************************
  Group 23.Field Print-Out & Plot Control
 NPRINT = 100000 ;NUMCLS = 5
 NTPRIN = 20 ;ISTPRF = 1 ;ISTPRL = 100000
 NYPRIN = -1 ;IYPRF = 1 ;IYPRL = 10000
 NZPRIN = -1 ;IZPRF = 1 ;IZPRL = 10000
 XZPR = F ;YZPR = F
 IPLTF = 1 ;IPLTL = -1 ;NPLT = -1
 ISWPRF = 1 ;ISWPRL = 100000
 ITABL = 3 ;IPROF = 1
 ABSIZ =0.5 ;ORSIZ =0.4
 NTZPRF = 1 ;NCOLPF = 50
 ICHR = 2 ;NCOLCO = 45 ;NROWCO = 20
   No PATCHes yet used for this Group
 ************************************************************
  Group 24. Dumps For Restarts
 SAVE = T ;NOWIPE = F
 NSAVE =CHAM
 IDISPA = 4 ;IDISPB = 0 ;IDISPC = 0
 CSG1    ='N'
STOP