```
TALK=T;RUN(1,1)
PHOTON USE
AUTOPLOT
FILE
PHI 5

CL;DA 1 TEM1;DA 1 T3;COL3 1;BLB4 2;REDR
MSG    Temperature (curve) and T3 (crosses) profiles
ENDUSE
DISPLAY
The problem is as for case 201; but now allowance is made for
absorption and emission by the medium between the two plates.
The gap between the plates is WG (default = 1.0), and the
absorption/emission coefficient of the medium is EMISS.

The exact solution for the heat flux is:
QRAD = (EH - EC)/(0.75*ROSS*WGAP + 1/EMISH + 1/EMISC - 1)
where EH and EC are the black-body emissive powers of the hot and
cold surfaces, i.e. temperature**4 * Stefan-Boltzman
constant;
ROSS=(EMISS+SCATT) is the Rosseland coefficient.
The ROSS*WG product gives optical thickness of the gas slab

ENDDIS
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************

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

IRUNN = 1 ;LIBREF = 1
************************************************************
Group 2. Time dependence
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = T
NX = 1
XULAST =1.
XFRAC(1)=1.
************************************************************
Group 4. Y-Direction Grid Spacing
NY = 12
YVLAST =1.02
YFRAC(1)=9.803921E-03 ;YFRAC(2)=0.107843
YFRAC(3)=0.205882 ;YFRAC(4)=0.303922
YFRAC(5)=0.401961 ;YFRAC(6)=0.5
YFRAC(7)=0.598039 ;YFRAC(8)=0.696078
YFRAC(9)=0.794118 ;YFRAC(10)=0.892157
YFRAC(11)=0.990196 ;YFRAC(12)=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(142)=QRY ;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(QRY,Y,N,N,N,N,Y)
SOLUTN(PRPS,Y,N,N,N,N,Y)
SOLUTN(TEM1,Y,Y,N,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,N,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(TEM1,N,N,N,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 =1. ;SCATT =0.
ENUL =1.0E-05 ;ENUT =0.
PRNDTL(LTLS)=1. ;PRNDTL(T3)=1.
PRT(LTLS)=1. ;PRT(T3)=1.
CP1 =1. ;CP2 =1.
************************************************************
Group 10.Inter-Phase Transfer Processes
************************************************************
Group 11.Initial field variables (PHIs)
FIINIT(QRY)=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)=600. ;FIINIT(SCAT)=0.
FIINIT(EMIS)=1.

PATCH(SOL1 ,INIVAL, 1, 1, 1, 1, 1, 1, 1, 1)
INIT(SOL1 ,PRPS,0. ,111. )

PATCH(SOL2 ,INIVAL, 1, 1, 12, 12, 1, 1, 1, 1)
INIT(SOL2 ,PRPS,0. ,112. )

PATCH(HOTINI ,INIVAL, 1, 1, 1, 1, 1, 1, 1, 1)
INIT(HOTINI ,EMIS, FIXVAL ,0.3 )

PATCH(COLDINI ,INIVAL, 1, 1, 12, 12, 1, 1, 1, 1)
INIT(COLDINI ,EMIS, FIXVAL ,0.1 )
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(HOT ,SWALL , 1, 1, 1, 1, 1, 1, 1, 1)
COVAL(HOT ,TEM1, FIXVAL ,800. )

PATCH(COLD ,NWALL , 1, 1, 12, 12, 1, 1, 1, 1)
COVAL(COLD ,TEM1, FIXVAL ,400. )
XCYCLE = F
EGWF = T
WALLCO = GRND2
************************************************************
Group 14. Downstream Pressure For PARAB
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 500 ;ISWC1 = 1
LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
SELREF = T
RESFAC =1.0E-04
************************************************************
Group 16. Terminate Iterations
LITER(TEM1)=20 ;LITER(LTLS)=20
LITER(T3)=20
ENDIT(TEM1)=1.0E-03 ;ENDIT(LTLS)=1.0E-03
ENDIT(T3)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(QRY,LINRLX,1.)
RELAX(PRPS,LINRLX,1.)
RELAX(TEM1,FALSDT,1.0E+09)
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(QRY)=1.0E+10 ;VARMIN(QRY)=-1.0E+10
VARMAX(PRPS)=1.0E+10 ;VARMIN(PRPS)=-1.0E+10
VARMAX(TEM1)=800. ;VARMIN(TEM1)=400.
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)=800. ;VARMIN(T3)=400.
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(QRY,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 = 1 ;IYMON = 7 ;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
NYPRIN = 1 ;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

PATCH(PROFILES,PROFIL, 1, 1, 1, 12, 1, 1, 1, 1)
PLOT(PROFILES,QRY ,0. ,0. )
PLOT(PROFILES,T3 ,0. ,0. )
************************************************************
Group 24. Dumps For Restarts
SAVE = T ;NOWIPE = F
NSAVE =CHAM
STOP
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