TALK=T;RUN(1,1)
  PHOTON USE
  ext;p1;;

  view z;  norm
  msg  Contours of reactedness
  gr ou z 1;  con rctd z 1 sh;int 25;  upause 3
  ext;p2;;

  view z;  norm
  msg  Contours of reactedness
  gr ou z 1;  con rctd z 1 sh;int 25;  upause 3
  ext;p3;;

  view z;  norm
  msg  Contours of reactedness
  gr ou z 1;  con rctd z 1 sh;int 25;  upause 3
  ext;p4;;

  view z;  norm
  msg  Contours of reactedness
  gr ou z 1;  con rctd z 1 sh;int 25;  upause 3
  ext;p5;;

  view z;  norm
  msg  Contours of reactedness
  gr ou z 1;  con rctd z 1 sh;int 25;  upause 3
  ext;phi;;

  view z;  norm
  msg  Contours of reactedness
  ext;phi;;;

  view z;  norm;  gr ou z 1
  msg  Contours of reactedness with velocity vectors
  con rctd z 1 sh;int 25
  msg  Velocity vectors
  vec z 1;
  msg     -
  msg Press e to END
  ENDUSE
  DISPLAY
  A sphere of hot gas spreads flame into a cold combustible mixture
  by diffusion, heat conduction and chemical reaction.
  Gravity also causes relative motion.
  The reaction is single-step, with rate dependent only on
  reactedness.
  The spherical geometry is contrived by use of special porosity
  settings.
  Dimensionless diffusion, reaction-rate and buoyancy parameters
  may be varied.
  PHOTON USE commands are supplied for display purposes.
  ENDDIS
 ************************************************************
  Group 1. Run Title and Number
 ************************************************************
 ************************************************************
 
 TEXT(Spherical Flame Propagation             )
 
 ************************************************************
 ************************************************************
 
 IRUNN = 1 ;LIBREF = 14
 ************************************************************
  Group 2. Time dependence
 STEADY = F
    * Set overall time and no. of steps
 TFIRST =0. ;TLAST =1.0E-02
 FSTEP = 1 ;LSTEP = 50
 TFRAC(1)=0.02 ;TFRAC(13)=0.26
 TFRAC(25)=0.5 ;TFRAC(37)=0.74
 TFRAC(49)=0.98
 ************************************************************
  Group 3. X-Direction Grid Spacing
 CARTES = F
 NX = 12
 XULAST =3.1416
 XFRAC(1)=0.083333 ;XFRAC(3)=0.25
 XFRAC(5)=0.416667 ;XFRAC(7)=0.583333
 XFRAC(9)=0.75 ;XFRAC(11)=0.916667
 ************************************************************
  Group 4. Y-Direction Grid Spacing
 NY = 12
 YVLAST =1.0E-02
 YFRAC(1)=0.083333 ;YFRAC(2)=0.166667
 YFRAC(3)=0.25 ;YFRAC(4)=0.333333
 YFRAC(5)=0.416667 ;YFRAC(6)=0.5
 YFRAC(7)=0.583333 ;YFRAC(8)=0.666667
 YFRAC(9)=0.75 ;YFRAC(10)=0.833333
 YFRAC(11)=0.916667 ;YFRAC(12)=1.
 ************************************************************
  Group 5. Z-Direction Grid Spacing
 PARAB = F
 NZ = 1
 ZWLAST =1.0E-02
 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(14)=RCTD
 NAME(147)=NPOR ;NAME(148)=VPOR
 NAME(149)=EPOR ;NAME(150)=RHO1
    * 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(RCTD,Y,Y,N,N,N,Y)
 SOLUTN(NPOR,Y,N,N,N,N,Y)
 SOLUTN(VPOR,Y,N,N,N,N,Y)
 SOLUTN(EPOR,Y,N,N,N,N,Y)
 SOLUTN(RHO1,Y,N,N,N,N,Y)
 DEN1 = 150
 EPOR = 149 ;HPOR = 0 ;NPOR = 147 ;VPOR = 148
 ************************************************************
  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(RCTD,N,Y,Y,Y,Y,Y)
 DIFCUT =0.5 ;ZDIFAC =1.
 GALA = F ;ADDDIF = F
 NEWRH1 = T
 HUNIT =1.
 ISOLX = -1 ;ISOLY = -1 ;ISOLZ = -1
 DENPCO = T
 ************************************************************
  Group 9. Properties used if PRPS is not
  stored, and where PRPS = -1.0 if it is!
 RHO1 = GRND2 ;TMP1 = GRND2 ;EL1 =0.
 TSURR =0. ;TEMP0 =0. ;PRESS0 =0.
 DVO1DT =1. ;DRH1DP =0.
 RHO1A =1. ;RHO1B =5. ;RHO1C =0.
 TMP1A =0. ;TMP1B =0. ;TMP1C =0.
 TMP2A =0. ;TMP2B =0. ;TMP2C =0.
 EMISS =0. ;SCATT =0.
 RADIA =0. ;RADIB =0.
 ENUL =1.0E-03 ;ENUT =0.
 PRNDTL(U1)=1. ;PRNDTL(V1)=1.
 PRNDTL(RCTD)=1.
 PRT(U1)=1. ;PRT(V1)=1.
 PRT(RCTD)=1.
 CP1 =1. ;CP2 =1.
 ************************************************************
  Group 10.Inter-Phase Transfer Processes
 ************************************************************
  Group 11.Initial field variables (PHIs)
 FIINIT(P1)=1.0E-10 ;FIINIT(U1)=1.0E-10
 FIINIT(V1)=0. ;FIINIT(RCTD)=0.
 FIINIT(NPOR)=1. ;FIINIT(VPOR)=1.
 FIINIT(EPOR)=1. ;FIINIT(RHO1)=1.0E-10
 
 PATCH(SPHERE1 ,INIVAL, 1, 12, 1, 3, 1, 1, 1, 1)
 INIT(SPHERE1 ,RCTD,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(OUTER ,NORTH , 1, 12, 12, 12, 1, 1, 1, 50)
 COVAL(OUTER ,P1 ,1. ,0. )
 COVAL(OUTER ,RCTD,0. ,0. )
 
 PATCH(CHSOTERM,PHASEM, 1, 12, 1, 12, 1, 1, 1, 50)
 COVAL(CHSOTERM,RCTD, GRND7 ,1. )
 
 PATCH(BUOYANCY,PHASEM, 1, 12, 1, 12, 1, 1, 1, 50)
 COVAL(BUOYANCY,U1 , FIXFLU , GRND2 )
 COVAL(BUOYANCY,V1 , FIXFLU , GRND2 )
 XCYCLE = F
 EGWF = T
 WALLCO = GRND2
 BUOYA =0. ; BUOYB =-200. ; BUOYC =0.
 BUOYD =1.
 ************************************************************
  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 =0.1
 ************************************************************
  Group 16. Terminate Iterations
 LITER(P1)=20 ;LITER(U1)=20
 LITER(V1)=20 ;LITER(RCTD)=20
 ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03
 ENDIT(V1)=1.0E-03 ;ENDIT(RCTD)=1.0E-03
 ************************************************************
  Group 17. Relaxation
 RELAX(P1,LINRLX,1.)
 RELAX(U1,FALSDT,1.)
 RELAX(V1,FALSDT,1.)
 RELAX(RCTD,LINRLX,0.25)
 RELAX(RHO1,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(RCTD)=1. ;VARMIN(RCTD)=0.
 VARMAX(NPOR)=1.0E+10 ;VARMIN(NPOR)=-1.0E+10
 VARMAX(VPOR)=1.0E+10 ;VARMIN(VPOR)=-1.0E+10
 VARMAX(EPOR)=1.0E+10 ;VARMIN(EPOR)=-1.0E+10
 VARMAX(RHO1)=1.0E+10 ;VARMIN(RHO1)=-1.0E+10
 ************************************************************
  Group 19. Data transmitted to GROUND
 PARSOL = F
 IDISPD = 10
 IPORIB = 1
 ISG62 = 1
 CHSOA =1.0E+05 ;CHSOB =6.
 SPEDAT(SET,GXMONI,PLOTALL,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,Y,Y,Y,Y,Y)
 OUTPUT(U1,Y,Y,Y,Y,Y,Y)
 OUTPUT(V1,Y,Y,Y,Y,Y,Y)
 OUTPUT(RCTD,Y,Y,Y,Y,Y,Y)
 OUTPUT(NPOR,Y,N,Y,N,N,N)
 OUTPUT(VPOR,Y,N,Y,N,N,N)
 OUTPUT(EPOR,Y,N,Y,N,N,N)
 OUTPUT(RHO1,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 = 12 ;ISTPRF = 1 ;ISTPRL = 100000
 NXPRIN = 2 ;IXPRF = 1 ;IXPRL = 10000
 NYPRIN = -1 ;IYPRF = 1 ;IYPRL = 10000
 IPLTF = 1 ;IPLTL = -1 ;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
   No PATCHes yet used for this Group
 ************************************************************
  Group 24. Dumps For Restarts
 SAVE = T ;NOWIPE = F
 NSAVE =CHAM
STOP