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




  gr ou z 1
  msg           Temperature contours
  msg           (Numerical solution)
  con h1 z 1 fi;0.001
  msg Press Enter to continue
  pause
  con off;red
  con exac z 1 fi;0.001
  msg           Temperature contours
  msg             (Exact solution)
  msg Press e to END
  ENDUSE
  DISPLAY
    PLANT solves a two-dimensional steady diffusion problem  with
    space-dependent  source and boundary conditions.
    It can be tested against exact solution  fields.

    Governing equation:
    d(dT/dX)/dX + d(dT/dX)/dX +  S(X,Y)  =  0
    S(X,Y)  =  2.sinX.sinY
    Boundary  conditions:
    Y = 0 ;  T = 0
    Y = 1 ;  T = sin1.sinX
    X = 0 ;  T = 0
    X = 1 ;  T = sin1.sinY
    Exact solution:
    T(X,Y) = sinX.sinY


  ENDDIS
  PLANTBEGIN
   ** H1=sin1.sinX at Y=1
PATCH(YEQ1,NWALL,1,NX,NY,NY,1,1,1,1)
    VAL=SIN(1.)*SIN(XG2D)
COVAL(YEQ1,H1,1./PRNDTL(H1),GRND)
   ** H1=sin1.sinY at X=1
PATCH(XEQ1,EWALL,NX,NX,1,NY,1,1,1,1)
    VAL=SIN(1.)*SIN(YG2D)
COVAL(XEQ1,H1,1./PRNDTL(H1),GRND)
   ** Space dependent source
PATCH(SOURCE,VOLUME,1,NX,1,NY,1,1,1,1)
    VAL=2.*SIN(XG2D)*SIN(YG2D)
COVAL(SOURCE,H1,FIXFLU,GRND)

STORE(EXAC)
    EXAC=SIN(XG2D)*SIN(YG2D)
  PLANTEND
 ************************************************************
  Group 1. Run Title and Number
 ************************************************************
 ************************************************************
 
 TEXT(2D HEAT CONDUCTION WITH SPACE DEPENDENT )
 
 ************************************************************
 ************************************************************
 
 IRUNN = 1 ;LIBREF = 117
 ************************************************************
  Group 2. Time dependence
 STEADY = T
 ************************************************************
  Group 3. X-Direction Grid Spacing
 CARTES = T
 NX = 25
 XULAST =1.
 XFRAC(1)=0.04 ;XFRAC(6)=0.24
 XFRAC(11)=0.44 ;XFRAC(16)=0.64
 XFRAC(21)=0.84
 ************************************************************
  Group 4. Y-Direction Grid Spacing
 NY = 25
 YVLAST =1.
 YFRAC(1)=0.04 ;YFRAC(6)=0.24
 YFRAC(11)=0.44 ;YFRAC(16)=0.64
 YFRAC(21)=0.84
 ************************************************************
  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(14)=H1 ;NAME(150)=EXAC
    * Y in SOLUTN argument list denotes:
    * 1-stored 2-solved 3-whole-field
    * 4-point-by-point 5-explicit 6-harmonic averaging 
 SOLUTN(H1,Y,Y,N,N,N,Y)
 SOLUTN(EXAC,Y,N,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(H1,N,N,Y,N,Y,Y)
 DIFCUT =0.5 ;ZDIFAC =1.
 GALA = F ;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. ;ENUT =0.
 PRNDTL(H1)=1.
 PRT(H1)=1.
 CP1 =1. ;CP2 =1.
 ************************************************************
  Group 10.Inter-Phase Transfer Processes
 ************************************************************
  Group 11.Initial field variables (PHIs)
 FIINIT(H1)=1.0E-10 ;FIINIT(EXAC)=1.0E-10
   No PATCHes yet used for this Group
 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(XEQ0 ,WWALL , 1, 1, 1, 25, 1, 1, 1, 1)
 COVAL(XEQ0 ,H1 ,1. ,0. )
 
 PATCH(YEQ0 ,SWALL , 1, 25, 1, 1, 1, 1, 1, 1)
 COVAL(YEQ0 ,H1 ,1. ,0. )
 
 PATCH(YEQ1 ,NWALL , 1, 25, 25, 25, 1, 1, 1, 1)
 COVAL(YEQ1 ,H1 ,1. , GRND )
 
 PATCH(XEQ1 ,EWALL , 25, 25, 1, 25, 1, 1, 1, 1)
 COVAL(XEQ1 ,H1 ,1. , GRND )
 
 PATCH(SOURCE ,VOLUME, 1, 25, 1, 25, 1, 1, 1, 1)
 COVAL(SOURCE ,H1 , 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(H1)=20
 ENDIT(H1)=1.0E-03
 ************************************************************
  Group 17. Relaxation
 RELAX(H1,FALSDT,1.0E+09)
 RELAX(EXAC,LINRLX,1.)
 OVRRLX =0.
 EXPERT = F ;NNORSL = F
 ************************************************************
  Group 18. Limits
 VARMAX(H1)=1.0E+10 ;VARMIN(H1)=-1.0E+10
 VARMAX(EXAC)=1.0E+10 ;VARMIN(EXAC)=-1.0E+10
 ************************************************************
  Group 19. Data transmitted to GROUND
 NAMSAT =MOSG
 PARSOL = F
 ISG62 = 1
 ************************************************************
  Group 20. Preliminary Printout
 DISTIL = T ;NULLPR = F
 NDST = 0
 DSTTOL =1.0E-02
 EX(H1)=0.2114 ;EX(EXAC)=0.2114
 ************************************************************
  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(H1,Y,Y,Y,Y,Y,Y)
 OUTPUT(EXAC,Y,N,Y,N,N,N)
 ************************************************************
  Group 22. Monitor Print-Out
 IXMON = 13 ;IYMON = 13 ;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
 NXPRIN = 5 ;IXPRF = 1 ;IXPRL = 10000
 NYPRIN = 5 ;IYPRF = 1 ;IYPRL = 10000
 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
STOP