```
TALK=T;RUN(1,1)
DISPLAY
Hot air flows steadily through a box having two cooled walls.

A centrally-placed metal block takes up an intermediate
temperature, under the influences of conduction, convection and

Values which it may be interesting to vary are:
* gas absorptivity/emissivity coefficient:  EMISS
* gas scattering coefficient             :  SCAT
* hot-wall emissivity                    :  EMISH
* cold-wall emissivity                   :  EMISC
* block emissivity                       :  EMISB

**************************************************************
ENDDIS
PHOTON USE
p;;;;;

view 2 1 1
msg Computational Domain:
gr k 1
use patgeo
pause;cl
set vec av off
msg tem1 contours
do kk = 1, 10
con tem1 k kk  fi;0.001
enddo
pause;cl
msg t3 contours
do kk = 1, 10
con t3 k kk  fi;0.001
enddo
pause;cl
msg qrz contours
do kk = 1, 10
con qrz k kk  fi;0.001
enddo
msg Press E  to exit PHOTON ...
ENDUSE
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************

TEXT(3D TEM1 + T3, Participating ideal gas :2)

************************************************************
************************************************************

IRUNN = 1 ;LIBREF = 1
************************************************************
Group 2. Time dependence
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = T
NX = 12
XULAST =1.85
XFRAC(1)=0.083333 ;XFRAC(2)=0.166667
XFRAC(3)=0.25 ;XFRAC(4)=0.333333
XFRAC(5)=0.416667 ;XFRAC(6)=0.5
XFRAC(7)=0.583333 ;XFRAC(8)=0.666667
XFRAC(9)=0.75 ;XFRAC(10)=0.833333
XFRAC(11)=0.916667 ;XFRAC(12)=1.
************************************************************
Group 4. Y-Direction Grid Spacing
NY = 12
YVLAST =5.5
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 = 10
ZWLAST =8.2
ZFRAC(1)=0.1 ;ZFRAC(2)=0.2
ZFRAC(3)=0.3 ;ZFRAC(4)=0.4
ZFRAC(5)=0.5 ;ZFRAC(6)=0.6
ZFRAC(7)=0.7 ;ZFRAC(8)=0.8
ZFRAC(9)=0.9 ;ZFRAC(10)=1.
************************************************************
Group 6. Body-Fitted Coordinates
************************************************************
Group 7. Variables: STOREd,SOLVEd,NAMEd
ONEPHS = T
NAME(1)=P1 ;NAME(3)=U1
NAME(5)=V1 ;NAME(7)=W1
NAME(140)=QRZ ;NAME(141)=QRY
NAME(142)=QRX ;NAME(143)=PRPS
NAME(144)=TEM1 ;NAME(145)=LTLS
NAME(146)=WDIS ;NAME(147)=WGAP
NAME(148)=T3 ;NAME(149)=SCAT
NAME(150)=EMIS
* 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,Y)
SOLUTN(U1,Y,Y,N,N,N,Y)
SOLUTN(V1,Y,Y,N,N,N,Y)
SOLUTN(W1,Y,Y,N,N,N,Y)
SOLUTN(QRZ,Y,N,N,N,N,Y)
SOLUTN(QRY,Y,N,N,N,N,Y)
SOLUTN(QRX,Y,N,N,N,N,Y)
SOLUTN(PRPS,Y,N,N,N,N,Y)
SOLUTN(TEM1,Y,Y,Y,N,N,Y)
SOLUTN(LTLS,Y,Y,Y,N,N,Y)
SOLUTN(WDIS,Y,N,N,N,N,N)
SOLUTN(WGAP,Y,N,N,N,N,Y)
SOLUTN(T3,Y,Y,Y,N,N,Y)
SOLUTN(SCAT,Y,N,N,N,N,Y)
SOLUTN(EMIS,Y,N,N,N,N,Y)
PRPS = 143
************************************************************
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(W1,Y,Y,Y,Y,Y,Y)
TERMS(TEM1,Y,Y,Y,N,Y,N)
TERMS(LTLS,N,N,Y,N,Y,Y)
TERMS(T3,N,N,Y,N,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 =0.5 ;SCATT =0.5
ENUL =1.0E-05 ;ENUT =0.
PRNDTL(U1)=1. ;PRNDTL(V1)=1.
PRNDTL(W1)=1. ;PRNDTL(TEM1)=1.
PRNDTL(LTLS)=1. ;PRNDTL(T3)=1.
PRT(U1)=1. ;PRT(V1)=1.
PRT(W1)=1. ;PRT(TEM1)=1.
PRT(LTLS)=1. ;PRT(T3)=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)=1.0E-10 ;FIINIT(W1)=1.0E-10
FIINIT(QRZ)=1.0E-10 ;FIINIT(QRY)=1.0E-10
FIINIT(QRX)=1.0E-10 ;FIINIT(PRPS)=0.
FIINIT(TEM1)=600. ;FIINIT(LTLS)=1.0E-10
FIINIT(WDIS)=0.1 ;FIINIT(WGAP)=1.0E-10
FIINIT(T3)=1.0E-10 ;FIINIT(SCAT)=0.5
FIINIT(EMIS)=0.5

PATCH(SOL1 ,INIVAL, 1, 12, 1, 1, 2, 9, 1, 1)
INIT(SOL1 ,PRPS,0. ,111. )
INIT(SOL1 ,EMIS,0. ,0.9 )

PATCH(SOL2 ,INIVAL, 12, 12, 2, 6, 2, 9, 1, 1)
INIT(SOL2 ,PRPS,0. ,111. )
INIT(SOL2 ,EMIS,0. ,0.9 )

PATCH(SOL3 ,INIVAL, 1, 1, 2, 3, 2, 9, 1, 1)
INIT(SOL3 ,PRPS,0. ,111. )
INIT(SOL3 ,EMIS,0. ,0.9 )

PATCH(SOL4 ,INIVAL, 1, 12, 12, 12, 2, 9, 1, 1)
INIT(SOL4 ,PRPS,0. ,112. )
INIT(SOL4 ,EMIS,0. ,0.8 )

PATCH(SOL5 ,INIVAL, 12, 12, 10, 11, 2, 9, 1, 1)
INIT(SOL5 ,PRPS,0. ,112. )
INIT(SOL5 ,EMIS,0. ,0.8 )

PATCH(SOL6 ,INIVAL, 1, 1, 10, 11, 2, 9, 1, 1)
INIT(SOL6 ,PRPS,0. ,112. )
INIT(SOL6 ,EMIS,0. ,0.8 )

PATCH(SOL7 ,INIVAL, 1, 1, 6, 7, 2, 9, 1, 1)
INIT(SOL7 ,PRPS,0. ,112. )
INIT(SOL7 ,EMIS,0. ,0.8 )

PATCH(SOL8 ,INIVAL, 1, 12, 1, 12, 1, 1, 1, 1)
INIT(SOL8 ,PRPS,0. ,112. )
INIT(SOL8 ,EMIS,0. ,0.8 )

PATCH(SOL9 ,INIVAL, 1, 12, 1, 12, 10, 10, 1, 1)
INIT(SOL9 ,PRPS,0. ,112. )
INIT(SOL9 ,EMIS,0. ,0.8 )

PATCH(BLK ,INIVAL, 5, 7, 5, 7, 4, 6, 1, 1)
INIT(BLK ,PRPS,0. ,111. )
INIT(BLK ,EMIS,0. ,0.7 )
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(IN1 ,WEST , 1, 1, 8, 9, 2, 9, 1, 1)
COVAL(IN1 ,P1 , FIXFLU ,1. )
COVAL(IN1 ,U1 ,0. ,1. )
COVAL(IN1 ,V1 ,0. ,0. )
COVAL(IN1 ,W1 ,0. ,0. )
COVAL(IN1 ,TEM1,0. ,1500. )

PATCH(IN2 ,EAST , 12, 12, 7, 9, 2, 9, 1, 1)
COVAL(IN2 ,P1 , FIXFLU ,1. )
COVAL(IN2 ,U1 ,0. ,-1. )
COVAL(IN2 ,V1 ,0. ,0. )
COVAL(IN2 ,W1 ,0. ,0. )
COVAL(IN2 ,TEM1,0. ,1500. )

PATCH(OUT ,WEST , 1, 1, 4, 5, 2, 9, 1, 1)
COVAL(OUT ,P1 ,300. ,0. )

PATCH(COLD1 ,SWALL , 1, 12, 1, 1, 1, 10, 1, 1)
COVAL(COLD1 ,T3 ,1. ,300. )

PATCH(COLD2 ,NWALL , 1, 12, 12, 12, 1, 10, 1, 1)
COVAL(COLD2 ,T3 ,1. ,300. )
XCYCLE = F
EGWF = T
WALLCO = GRND2
************************************************************
Group 14. Downstream Pressure For PARAB
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 300 ;ISWC1 = 1
LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
SELREF = T
RESFAC =5.0E-06
************************************************************
Group 16. Terminate Iterations
LITER(P1)=20 ;LITER(U1)=10
LITER(V1)=10 ;LITER(W1)=10
LITER(TEM1)=20 ;LITER(LTLS)=20
LITER(T3)=20
ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03
ENDIT(V1)=1.0E-03 ;ENDIT(W1)=1.0E-03
ENDIT(TEM1)=1.0E-03 ;ENDIT(LTLS)=1.0E-03
ENDIT(T3)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(P1,LINRLX,1.)
RELAX(U1,FALSDT,1.)
RELAX(V1,FALSDT,1.)
RELAX(W1,FALSDT,1.)
RELAX(QRZ,LINRLX,1.)
RELAX(QRY,LINRLX,1.)
RELAX(QRX,LINRLX,1.)
RELAX(PRPS,LINRLX,1.)
RELAX(TEM1,LINRLX,0.5)
RELAX(LTLS,FALSDT,1.0E+09)
RELAX(WDIS,LINRLX,1.)
RELAX(WGAP,LINRLX,1.)
RELAX(T3,LINRLX,0.5)
RELAX(SCAT,LINRLX,1.)
RELAX(EMIS,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(W1)=1.0E+06 ;VARMIN(W1)=-1.0E+06
VARMAX(QRZ)=1.0E+10 ;VARMIN(QRZ)=-1.0E+10
VARMAX(QRY)=1.0E+10 ;VARMIN(QRY)=-1.0E+10
VARMAX(QRX)=1.0E+10 ;VARMIN(QRX)=-1.0E+10
VARMAX(PRPS)=1.0E+10 ;VARMIN(PRPS)=-1.0E+10
VARMAX(TEM1)=1500. ;VARMIN(TEM1)=300.
VARMAX(LTLS)=1.0E+10 ;VARMIN(LTLS)=-1.0E+10
VARMAX(WDIS)=1.0E+10 ;VARMIN(WDIS)=-1.0E+10
VARMAX(WGAP)=1.0E+10 ;VARMIN(WGAP)=-1.0E+10
VARMAX(T3)=1500. ;VARMIN(T3)=300.
VARMAX(SCAT)=1.0E+10 ;VARMIN(SCAT)=-1.0E+10
VARMAX(EMIS)=1.0E+10 ;VARMIN(EMIS)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
PARSOL = F
ISG62 = 1
SPEDAT(SET,MATERIAL,0,L,T)
SPEDAT(SET,MATERIAL,111,L,T)
SPEDAT(SET,MATERIAL,112,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(W1,Y,N,Y,Y,Y,Y)
OUTPUT(QRZ,Y,N,Y,N,N,N)
OUTPUT(QRY,Y,N,Y,N,N,N)
OUTPUT(QRX,Y,N,Y,N,N,N)
OUTPUT(PRPS,Y,N,Y,N,N,N)
OUTPUT(TEM1,Y,N,Y,Y,Y,Y)
OUTPUT(LTLS,N,N,N,N,N,N)
OUTPUT(WDIS,N,N,N,N,N,N)
OUTPUT(WGAP,Y,N,Y,N,N,N)
OUTPUT(T3,Y,N,Y,Y,Y,Y)
OUTPUT(SCAT,Y,N,Y,N,N,N)
OUTPUT(EMIS,Y,N,Y,N,N,N)
************************************************************
Group 22. Monitor Print-Out
IXMON = 7 ;IYMON = 7 ;IZMON = 6
NPRMON = 100000 ;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
NZPRIN = -1 ;IZPRF = 1 ;IZPRL = 10000
XZPR = F ;YZPR = F
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
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