TALK=T;RUN(1,1)
  PHOTON USE
  p
  phi
  5 1



  msg grid
  gr z 1
  msg Press  to continue
  pause
  cl
  msg 1st-phase velocity vectors at t=5s
  set vec ref;2
  set vec comp
  au1 cv1 -
  vec z 1 sh
  gr ou z 1
  msg Press  to continue
  pause
  cl
  msg 2nd-phase velocity vectors at t=5s
  set vec ref;0.25
  set vec comp
  bu2 dv2 -
  vec z 1 sh
  gr ou z 1
  msg Press  to continue
  pause
  cl
  msg contour of pressure at t=5s
  con p1 z 1 fi;0.002
  gr ou z 1
  msg Press  to continue
  pause
  cl
  msg contour of 1st-phase volume fraction at t=5s
  con r1 z 1 fi;0.002
  gr ou z 1
  msg Press  to continue
  pause
  cl
  msg contour of 1st-phase volume fraction at t=5s
  con r2 z 1 fi;0.002
  gr ou z 1
  msg Press e to END
  enduse
  DISPLAY
  A light fluid lies above a heavy one in a box of which the lid
  fluid, and a second one,rotating in the opposite direction, in
  the lower one.
    This is a transient problem, much easier to conceive than to
  solve. A point to watch for is:does the sharp discontinuity
  of the volume fraction, characterising the interface, remain
  intact?
    It should be observed that a number of special devices have
  been activated in order to promote convergence, for example
  EQDVDP (which causes the velocities of the two fluids to be
  adjusted by equal amounts at the correction stage) and
  ISWR1=5 (which allows 5 sweeps of velocity adjustment, at each
  time step, before the volume fractions are solved for).
  The choices and settings of these convergence-promoting
  parameters may not be the best, so the search for better ones
  could prove instructive.
  ENDDIS
 ************************************************************
  Group 1. Run Title and Number
 ************************************************************
 ************************************************************
 
 TEXT(TRANSIENT 2PH FLOW WITH MOVING WALL:W441)
 
 ************************************************************
 ************************************************************
 
 IRUNN = 1 ;LIBREF = 14
 ************************************************************
  Group 2. Time dependence
 STEADY = F
    * Set overall time and no. of steps
 TFIRST =0. ;TLAST =5.
 FSTEP = 1 ;LSTEP = 5
 TFRAC(5)=1.
 ************************************************************
  Group 3. X-Direction Grid Spacing
 CARTES = T
 NX = 5
 XULAST =1.
 XFRAC(1)=0.2 ;XFRAC(2)=0.4
 XFRAC(3)=0.6 ;XFRAC(4)=0.8
 XFRAC(5)=1.
 ************************************************************
  Group 4. Y-Direction Grid Spacing
 NY = 5
 YVLAST =1.
 YFRAC(1)=0.2 ;YFRAC(2)=0.4
 YFRAC(3)=0.6 ;YFRAC(4)=0.8
 YFRAC(5)=1.
 ************************************************************
  Group 5. Z-Direction Grid Spacing
 PARAB = F
 NZ = 1
 ZWLAST =1.
 ZFRAC(1)=1.
 ************************************************************
  Group 6. Body-Fitted Coordinates
 ************************************************************
  Group 7. Variables: STOREd,SOLVEd,NAMEd
 ONEPHS = F
 EQUVEL = F
 NAME(1)=P1 ;NAME(3)=AU1
 NAME(4)=BU2 ;NAME(5)=CV1
 NAME(6)=DV2 ;NAME(9)=R1
 NAME(10)=R2
    * 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(AU1,Y,Y,N,N,N,N)
 SOLUTN(BU2,Y,Y,N,N,N,N)
 SOLUTN(CV1,Y,Y,N,N,N,N)
 SOLUTN(DV2,Y,Y,N,N,N,N)
 SOLUTN(R1,Y,Y,N,N,N,N)
 SOLUTN(R2,Y,Y,N,N,N,N)
 ************************************************************
  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(AU1,Y,Y,Y,Y,Y,Y)
 TERMS(BU2,Y,Y,Y,Y,N,Y)
 TERMS(CV1,Y,Y,Y,Y,Y,Y)
 TERMS(DV2,Y,Y,Y,Y,N,Y)
 TERMS(R1,Y,Y,Y,Y,Y,Y)
 TERMS(R2,Y,Y,Y,Y,N,Y)
 DIFCUT =0.5 ;ZDIFAC =1.
 GALA = F ;ADDDIF = F
 EQDVDP = T
 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.
 RHO2 =1000. ;TMP2 =0.
 EL2 =0.
 DVO2DT =0. ;DRH2DP =0.
 ENUL =1.0E-03 ;ENUT =0.
 PHINT(AU1)=-2.022E+04 ;PHINT(BU2)=-2.022E+04
 PHINT(CV1)=-2.022E+04 ;PHINT(DV2)=-2.022E+04
 PHINT(R1)=-2.022E+04 ;PHINT(R2)=-2.022E+04
 PRNDTL(AU1)=1. ;PRNDTL(BU2)=1.
 PRNDTL(CV1)=1. ;PRNDTL(DV2)=1.
 PRNDTL(R1)=1. ;PRNDTL(R2)=1.
 PRT(AU1)=1. ;PRT(BU2)=1.
 PRT(CV1)=1. ;PRT(DV2)=1.
 PRT(R1)=1. ;PRT(R2)=1.
 CP1 =1. ;CP2 =1.
 ************************************************************
  Group 10.Inter-Phase Transfer Processes
 CFIPS =1.0E+05
 RLOLIM =0. ;CMDOT =0.
 CINT(P1)=1. ;CINT(AU1)=1.
 CINT(BU2)=1. ;CINT(CV1)=1.
 CINT(DV2)=1. ;CINT(R1)=1.
 CINT(R2)=1.
 PHINT(P1)=-2.022E+04 ;PHINT(AU1)=-2.022E+04
 PHINT(BU2)=-2.022E+04 ;PHINT(CV1)=-2.022E+04
 PHINT(DV2)=-2.022E+04 ;PHINT(R1)=-2.022E+04
 PHINT(R2)=-2.022E+04
 ************************************************************
  Group 11.Initial field variables (PHIs)
 FIINIT(P1)=0. ;FIINIT(AU1)=0.
 FIINIT(BU2)=0. ;FIINIT(CV1)=0.
 FIINIT(DV2)=0. ;FIINIT(R1)=1.
 FIINIT(R2)=0.
 
 PATCH(INIT ,INIVAL, 1, 5, 1, 2, 1, 1, 1, 1)
 INIT(INIT ,P1 ,0. ,1000. )
 INIT(INIT ,R1 ,0. ,-1. )
 INIT(INIT ,R2 ,0. ,1. )
 INIADD = T
 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, 5, 5, 5, 1, 1, 1, 5)
 COVAL(REFP ,R1 ,1.0E-05 ,0. )
 
 PATCH(MOVWALL ,NWALL , 1, 5, 5, 5, 1, 1, 2, 5)
 COVAL(MOVWALL ,AU1 ,1. ,1. )
 
 PATCH(WFUNWEST,WWALL , 1, 1, 1, 5, 1, 1, 1, 5)
 COVAL(WFUNWEST,CV1 ,1. ,0. )
 COVAL(WFUNWEST,DV2 ,1. ,0. )
 
 PATCH(WFUNEAST,EWALL , 5, 5, 1, 5, 1, 1, 1, 5)
 COVAL(WFUNEAST,CV1 ,1. ,0. )
 COVAL(WFUNEAST,DV2 ,1. ,0. )
 
 PATCH(WFUNSOUT,SWALL , 1, 5, 1, 1, 1, 1, 1, 5)
 COVAL(WFUNSOUT,AU1 ,1. ,0. )
 COVAL(WFUNSOUT,BU2 ,1. ,0. )
 
 PATCH(GRAVITY ,PHASEM, 1, 5, 1, 5, 1, 1, 1, 5)
 COVAL(GRAVITY ,CV1 , FIXFLU ,-10. )
 COVAL(GRAVITY ,DV2 , FIXFLU ,-10. )
 XCYCLE = F
 EGWF = T
 WALLCO = GRND2
 ************************************************************
  Group 14. Downstream Pressure For PARAB
 ************************************************************
  Group 15. Terminate Sweeps
 LSWEEP = 20 ;ISWC1 = 1
 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
 ISWR1 = 5 ;ISWR2 = 10000
 SELREF = T
 RESFAC =1.0E-04
 ************************************************************
  Group 16. Terminate Iterations
 LITER(P1)=20 ;LITER(AU1)=10
 LITER(BU2)=10 ;LITER(CV1)=10
 LITER(DV2)=10 ;LITER(R1)=1
 LITER(R2)=1
 ENDIT(P1)=1.0E-03 ;ENDIT(AU1)=1.0E-03
 ENDIT(BU2)=1.0E-03 ;ENDIT(CV1)=1.0E-03
 ENDIT(DV2)=1.0E-03 ;ENDIT(R1)=1.0E-03
 ENDIT(R2)=1.0E-03
 ************************************************************
  Group 17. Relaxation
 RELAX(P1,LINRLX,1.)
 RELAX(AU1,FALSDT,1.0E-02)
 RELAX(BU2,FALSDT,1.0E-02)
 RELAX(CV1,FALSDT,1.0E-03)
 RELAX(DV2,FALSDT,1.0E-02)
 RELAX(R1,LINRLX,0.1)
 RELAX(R2,LINRLX,0.1)
 OVRRLX =0.
 EXPERT = F ;NNORSL = F
 ************************************************************
  Group 18. Limits
 VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-1.0E+10
 VARMAX(AU1)=1.0E+06 ;VARMIN(AU1)=-1.0E+06
 VARMAX(BU2)=1.0E+06 ;VARMIN(BU2)=-1.0E+06
 VARMAX(CV1)=1.0E+06 ;VARMIN(CV1)=-1.0E+06
 VARMAX(DV2)=1.0E+06 ;VARMIN(DV2)=-1.0E+06
 VARMAX(R1)=1. ;VARMIN(R1)=1.0E-06
 VARMAX(R2)=1. ;VARMIN(R2)=1.0E-06
 ************************************************************
  Group 19. Data transmitted to GROUND
 PARSOL = F
 ISG62 = 1
 SPEDAT(SET,GXMONI,TRANSIENT,L,F)
 ************************************************************
  Group 20. Preliminary Printout
 ************************************************************
  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,N,Y,Y,Y,Y)
 OUTPUT(AU1,Y,N,Y,Y,Y,Y)
 OUTPUT(BU2,Y,N,Y,Y,Y,Y)
 OUTPUT(CV1,Y,N,Y,Y,Y,Y)
 OUTPUT(DV2,Y,N,Y,Y,Y,Y)
 OUTPUT(R1,Y,N,Y,Y,Y,Y)
 OUTPUT(R2,Y,N,Y,Y,Y,Y)
 ************************************************************
  Group 22. Monitor Print-Out
 IXMON = 4 ;IYMON = 4 ;IZMON = 1
 NPRMON = 100000 ;NPRMNT = 1 ;TSTSWP = -1
 UWATCH = T ;USTEER = T
 HIGHLO = F
 ************************************************************
  Group 23.Field Print-Out & Plot Control
 NPRINT = 100000 ;NUMCLS = 5
 NTPRIN = 10 ;ISTPRF = 1 ;ISTPRL = 100000
 NXPRIN = -1 ;IXPRF = 1 ;IXPRL = 10000
 NYPRIN = -1 ;IYPRF = 1 ;IYPRL = 10000
 IPLTF = 1 ;IPLTL = 100 ;NPLT = -1
 ISWPRF = 1 ;ISWPRL = 100000
 ITABL = 1 ;IPROF = 1
 ABSIZ =0.5 ;ORSIZ =0.4
 NTZPRF = 1 ;NCOLPF = 50
 ICHR = 2 ;NCOLCO = 45 ;NROWCO = 20
 
 PATCH(CONT ,CONTUR, 1, 5, 1, 5, 1, 1, 1, 5)
 PLOT(CONT ,AU1 ,0. ,10. )
 PLOT(CONT ,BU2 ,0. ,10. )
 PLOT(CONT ,R2 ,0. ,10. )
 
 PATCH(IXEQ2 ,PROFIL, 2, 2, 1, 5, 1, 1, 1, 5)
 PLOT(IXEQ2 ,P1 ,0. ,4000. )
 PLOT(IXEQ2 ,AU1 ,-0.05 ,0.05 )
 ************************************************************
  Group 24. Dumps For Restarts
 SAVE = T ;NOWIPE = F
 NSAVE =CHAM
STOP