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

  use patgeo
  gr ou z 1
  msg contours of velocity, and velocity vectors
  con u1 z 1 fi;0.01;vec z 1
  msg press RETURN for length scale
  pause;con off;vec off;red
  msg contours of turbulence length scale
  con len1 z 1 fi;0.01;pause;con off;red
  msg contours of effective viscosity
  con enut z 1 fi;0.01
  enduse
  DISPLAY
  This case involves steady, turbulent flow over a backward-facing
  step, of height h, in a two-dimensional channel of width 3*h.
  The calculations are started at a distance 4h upstream of the step
  and terminated at a distance 16h downstream.

    //////////////////////// wall ///////////////////////
    -----------------------------------------------------
                                                           Pressure
  Inlet  ------->                              --------->  fixed at
                                                           zero
   /________________
  | ////////////////|                                  Exit
  |       wall     /| Recirculation
  |                /|  <----                ----->
   \ constant      /|____________________________________
  prescribed mass  //////////////////////////////////////
  inflow rate                        wall
  ENDDIS
 ************************************************************
  Group 1. Run Title and Number
 ************************************************************
 ************************************************************
 
 TEXT( LVEL model;  EGWF= T                   )
 
 ************************************************************
 ************************************************************
 
 IRUNN = 1 ;LIBREF = 14
 ************************************************************
  Group 2. Time dependence
 STEADY = T
 ************************************************************
  Group 3. X-Direction Grid Spacing
 CARTES = T
 NX = 20
 XULAST =0.762
 XFRAC(1)=0.05 ;XFRAC(2)=0.1
 XFRAC(3)=0.15 ;XFRAC(4)=0.2
 XFRAC(5)=0.25 ;XFRAC(6)=0.3
 XFRAC(7)=0.35 ;XFRAC(8)=0.4
 XFRAC(9)=0.45 ;XFRAC(10)=0.5
 XFRAC(11)=0.55 ;XFRAC(12)=0.6
 XFRAC(13)=0.65 ;XFRAC(14)=0.7
 XFRAC(15)=0.75 ;XFRAC(16)=0.8
 XFRAC(17)=0.85 ;XFRAC(18)=0.9
 XFRAC(19)=0.95 ;XFRAC(20)=1.
 ************************************************************
  Group 4. Y-Direction Grid Spacing
 NY = 15
 YVLAST =0.1143
 YFRAC(1)=0.066667 ;YFRAC(2)=0.133333
 YFRAC(3)=0.2 ;YFRAC(4)=0.266667
 YFRAC(5)=0.333333 ;YFRAC(6)=0.4
 YFRAC(7)=0.466667 ;YFRAC(8)=0.533333
 YFRAC(9)=0.6 ;YFRAC(10)=0.666667
 YFRAC(11)=0.733333 ;YFRAC(12)=0.8
 YFRAC(13)=0.866667 ;YFRAC(14)=0.933333
 YFRAC(15)=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 = T
 NAME(1)=P1 ;NAME(3)=U1
 NAME(5)=V1 ;NAME(145)=PRPS
 NAME(146)=WGAP ;NAME(147)=LTLS
 NAME(148)=WDIS ;NAME(149)=LEN1
 NAME(150)=ENUT
    * 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,Y,N,N,N)
 SOLUTN(U1,Y,Y,N,N,N,Y)
 SOLUTN(V1,Y,Y,N,N,N,Y)
 SOLUTN(PRPS,Y,N,N,N,N,Y)
 SOLUTN(WGAP,Y,N,N,N,N,Y)
 SOLUTN(LTLS,Y,Y,Y,N,N,Y)
 SOLUTN(WDIS,Y,N,N,N,N,N)
 SOLUTN(LEN1,Y,N,N,N,N,Y)
 SOLUTN(ENUT,Y,N,N,N,N,Y)
 VIST = 150
 LEN1 = 149
 PRPS = 145
 ************************************************************
  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(U1,Y,Y,Y,Y,Y,Y)
 TERMS(V1,Y,Y,Y,Y,Y,Y)
 TERMS(LTLS,N,N,Y,N,Y,Y)
 DIFCUT =0.5 ;ZDIFAC =1.
 GALA = F ;ADDDIF = F
 NEWENT = 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 = GRND1
 TSURR =0. ;TEMP0 =0. ;PRESS0 =0.
 DVO1DT =0. ;DRH1DP =0.
 EMISS =0. ;SCATT =0.
 RADIA =0. ;RADIB =0.
 EL1A =0. ;EL1B =1. ;EL1C =0.
 ENUL =1.0E-05 ;ENUT = GRND8
 ENUTA =0. ;ENUTB =0. ;ENUTC =0.
 IENUTA = 0
 PRNDTL(U1)=1. ;PRNDTL(V1)=1.
 PRNDTL(LTLS)=1.
 PRT(U1)=1. ;PRT(V1)=1.
 PRT(LTLS)=1.
 CP1 =1. ;CP2 =1.
 ************************************************************
  Group 10.Inter-Phase Transfer Processes
 ************************************************************
  Group 11.Initial field variables (PHIs)
 FIINIT(P1)=1.3E-04 ;FIINIT(U1)=1.
 FIINIT(V1)=1.0E-10 ;FIINIT(PRPS)=-1.
 FIINIT(WGAP)=1.0E-10 ;FIINIT(LTLS)=1.0E-10
 FIINIT(WDIS)=0.01143 ;FIINIT(LEN1)=1.0E-10
 FIINIT(ENUT)=1.0E-10
 
 PATCH(.STEP ,INIVAL,0. ,0.2 ,0. ,0.3333 ,0. ,1. ,1. ,1. )
 INIT(.STEP ,PRPS,0. ,198. )
 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(.INLET ,WEST ,0. ,0. ,0. ,1. ,0. ,0. ,0. ,1. )
 COVAL(.INLET ,P1 , FIXFLU ,1. )
 COVAL(.INLET ,U1 ,0. ,1. )
 
 PATCH(.OUTLET ,EAST ,1. ,1. ,0. ,1. ,0. ,1. ,0. ,1. )
 COVAL(.OUTLET ,P1 ,1.0E+05 ,0. )
 
 PATCH(.WFNN ,NWALL ,0. ,1. ,1. ,1. ,0. ,1. ,1. ,1. )
 COVAL(.WFNN ,U1 , GRND2 ,0. )
 
 PATCH(.WFNS ,SWALL ,0. ,1. ,0. ,0. ,0. ,1. ,0. ,1. )
 COVAL(.WFNS ,U1 , GRND2 ,0. )
 XCYCLE = F
 EGWF = T
 WALLCO = GRND2
 ************************************************************
  Group 14. Downstream Pressure For PARAB
 ************************************************************
  Group 15. Terminate Sweeps
 LSWEEP = 1000 ;ISWC1 = 1
 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
 SELREF = T
 RESFAC =1.0E-02
 ************************************************************
  Group 16. Terminate Iterations
 LITER(P1)=20 ;LITER(U1)=20
 LITER(V1)=20 ;LITER(LTLS)=20
 ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03
 ENDIT(V1)=1.0E-03 ;ENDIT(LTLS)=1.0E-03
 ************************************************************
  Group 17. Relaxation
 RELAX(P1,LINRLX,1.)
 RELAX(U1,FALSDT,0.1524)
 RELAX(V1,FALSDT,0.1524)
 RELAX(PRPS,LINRLX,1.)
 RELAX(WGAP,LINRLX,1.)
 RELAX(LTLS,FALSDT,1.0E+09)
 RELAX(WDIS,LINRLX,1.)
 RELAX(LEN1,LINRLX,1.)
 RELAX(ENUT,LINRLX,1.)
 OVRRLX =0.
 EXPERT = F ;NNORSL = F
 ************************************************************
  Group 18. Limits
 VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-1.0E+10
 VARMAX(U1)=1.0E+06 ;VARMIN(U1)=-1.0E+06
 VARMAX(V1)=1.0E+06 ;VARMIN(V1)=-1.0E+06
 VARMAX(PRPS)=1.0E+10 ;VARMIN(PRPS)=-1.0E+10
 VARMAX(WGAP)=1.0E+10 ;VARMIN(WGAP)=-1.0E+10
 VARMAX(LTLS)=1.0E+10 ;VARMIN(LTLS)=-1.0E+10
 VARMAX(WDIS)=1.0E+10 ;VARMIN(WDIS)=-1.0E+10
 VARMAX(LEN1)=1.0E+10 ;VARMIN(LEN1)=-1.0E+10
 VARMAX(ENUT)=1.0E+10 ;VARMIN(ENUT)=-1.0E+10
 ************************************************************
  Group 19. Data transmitted to GROUND
 GENK = T
 PARSOL = F
 ISKINA = 5 ;ISKINB = 4
 ISG62 = 1
 SPEDAT(SET,GXMONI,PLOTALL,L,T)
 SPEDAT(SET,MATERIAL,198,L,T)
 ************************************************************
  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(U1,Y,N,Y,Y,Y,Y)
 OUTPUT(V1,Y,N,Y,Y,Y,Y)
 OUTPUT(PRPS,Y,N,Y,N,N,N)
 OUTPUT(WGAP,Y,N,Y,N,N,N)
 OUTPUT(LTLS,Y,N,Y,Y,Y,Y)
 OUTPUT(WDIS,Y,N,Y,N,N,N)
 OUTPUT(LEN1,Y,N,Y,N,N,N)
 OUTPUT(ENUT,Y,N,Y,N,N,N)
 ************************************************************
  Group 22. Monitor Print-Out
 IXMON = 10 ;IYMON = 7 ;IZMON = 1
 NPRMON = 100 ;NPRMNT = 1 ;TSTSWP = -1
 UWATCH = T ;USTEER = T
 HIGHLO = F
 ************************************************************
  Group 23.Field Print-Out & Plot Control
 NPRINT = 100000 ;NUMCLS = 5
 NXPRIN = -1 ;IXPRF = 1 ;IXPRL = 10000
 NYPRIN = -1 ;IYPRF = 1 ;IYPRL = 10000
 IPLTF = 1 ;IPLTL = 1000 ;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(MAP ,CONTUR, 1, 20, 1, 15, 1, 1, 1, 1)
 PLOT(MAP ,P1 ,0. ,10. )
 PLOT(MAP ,U1 ,0. ,10. )
 PLOT(MAP ,V1 ,0. ,10. )
 ************************************************************
  Group 24. Dumps For Restarts
 SAVE = T ;NOWIPE = F
 NSAVE =CHAM
STOP