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



  msg       ******************************************************
  msg       *  Note:                                             *
  msg       *               ========                             *
  msg       *  Inspect the result file of d_priv1 to see the     *
  msg       *  numerical data.                                   *
  msg       ******************************************************
  MSG Press E to end
  ENDUSE
  DISPLAY
    Zero-dimensional diffusion problem which can be tested  against
    exact solution.
  =================================================================
     Unsteady dispersal problem:
       dF/dt=exp(t)-5F
     Initial conditions:
        t=0, F=1
     Exact solution:
        F=1./6.(exp(t)+5.exp(-5t))
  ==================================================================
  One computational cell is used in this study of the
  time variation of pollutant concentration.
  ENDDIS
   PLANTBEGIN
PATCH(SOURCE,CELL,1,NX,1,NY,1,1,1,lstep)
    VAL=EXP(TIM)/5.
COVAL(SOURCE,C1,5.,GRND)
      * Exact solution for output
STORE(EXCT)
   EXCT=1./6*(EXP(TIM)+5.*EXP(-5.*TIM))
   PLANTEND
 ************************************************************
  Group 1. Run Title and Number
 ************************************************************
 ************************************************************
 
 TEXT(ABSORPTIVE DISPERSAL WITH TIME DEPENDENT)
 
 ************************************************************
 ************************************************************
 
 IRUNN = 1 ;LIBREF = 111
 ************************************************************
  Group 2. Time dependence
 STEADY = F
    * Set overall time and no. of steps
 TFIRST =0. ;TLAST =1.
 FSTEP = 1 ;LSTEP = 12
 TFRAC(1)=0.083333 ;TFRAC(2)=0.166667
 TFRAC(3)=0.25 ;TFRAC(4)=0.333333
 TFRAC(5)=0.416667 ;TFRAC(6)=0.5
 TFRAC(7)=0.583333 ;TFRAC(8)=0.666667
 TFRAC(9)=0.75 ;TFRAC(10)=0.833333
 TFRAC(11)=0.916667 ;TFRAC(12)=1.
 ************************************************************
  Group 3. X-Direction Grid Spacing
 CARTES = T
 NX = 1
 XULAST =1.
 XFRAC(1)=1.
 ************************************************************
  Group 4. Y-Direction Grid Spacing
 NY = 1
 YVLAST =1.
 YFRAC(1)=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(16)=C1 ;NAME(150)=EXCT
    * Y in SOLUTN argument list denotes:
    * 1-stored 2-solved 3-whole-field
    * 4-point-by-point 5-explicit 6-harmonic averaging 
 SOLUTN(C1,Y,Y,N,N,N,Y)
 SOLUTN(EXCT,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(C1,N,N,N,Y,Y,N)
 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 =1.0E-05 ;ENUT =0.
 CP1 =1. ;CP2 =1.
 ************************************************************
  Group 10.Inter-Phase Transfer Processes
 ************************************************************
  Group 11.Initial field variables (PHIs)
 FIINIT(C1)=1. ;FIINIT(EXCT)=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(SOURCE ,CELL , 1, 1, 1, 1, 1, 1, 1, 12)
 COVAL(SOURCE ,C1 ,5. , GRND )
 XCYCLE = F
 EGWF = T
 WALLCO = GRND2
 ************************************************************
  Group 14. Downstream Pressure For PARAB
 ************************************************************
  Group 15. Terminate Sweeps
 LSWEEP = 2 ;ISWC1 = 1
 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
 SELREF = T
 RESFAC =1.0E-04
 ************************************************************
  Group 16. Terminate Iterations
 LITER(C1)=20
 ENDIT(C1)=1.0E-03
 ************************************************************
  Group 17. Relaxation
 RELAX(C1,FALSDT,1.0E+09)
 RELAX(EXCT,LINRLX,1.)
 OVRRLX =0.
 EXPERT = F ;NNORSL = F
 ************************************************************
  Group 18. Limits
 VARMAX(C1)=1.0E+10 ;VARMIN(C1)=-1.0E+10
 VARMAX(EXCT)=1.0E+10 ;VARMIN(EXCT)=-1.0E+10
 ************************************************************
  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(C1)=0.4689 ;EX(EXCT)=0.4587
 ************************************************************
  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(C1,Y,N,Y,Y,Y,Y)
 OUTPUT(EXCT,Y,N,Y,N,N,N)
 ************************************************************
  Group 22. Monitor Print-Out
 IXMON = 1 ;IYMON = 1 ;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 = 100000 ;ISTPRF = 1 ;ISTPRL = 100000
 IPLTF = 1 ;IPLTL = -1 ;NPLT = -1
 ISWPRF = 1 ;ISWPRL = 100000
 ITABL = 3 ;IPROF = 2
 ABSIZ =0.5 ;ORSIZ =0.4
 NTZPRF = 1 ;NCOLPF = 50
 ICHR = 2 ;NCOLCO = 45 ;NROWCO = 20
 
 PATCH(TIMEPLOT,PROFIL, 1, 1, 1, 1, 1, 1, 1, 12)
 PLOT(TIMEPLOT,C1 ,0. ,1. )
 PLOT(TIMEPLOT,EXCT,0. ,1. )
 ************************************************************
  Group 24. Dumps For Restarts
 SAVE = T ;NOWIPE = F
 NSAVE =CHAM
STOP