```
TALK=T;RUN(1,1)
DISPLAY

SIMULATION OF THE LONGWELL BOMB

2-dimensional (x-y), polar, steady, elliptic simulation

This case simulates the experiment of Longwell, Frost and Weiss
used to produce the 'ranking' of fuels for gas turbines. The
apparatus is a refractory sphere, into the centre of which fuel
and air are injected through many small holes. The exhaust
products escape through fewer, larger holes in the shell. The
gases, which are highly turbulent as a consequence of the high
injection velocities, burne within the sphere.

reactor.

enddis
PHOTON USE
p
phi

con rctd z 1 fi;0.01
pause
gr z 1
pause
con off;gr off;red;gr ou z 1
msg  Velocity vectors
vec z 1 sh
msg Press e to END
enduse
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************

TEXT(Longwell Bomb; X-Y Model                )

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

IRUNN = 1 ;LIBREF = 14
************************************************************
Group 2. Time dependence
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = F
NX = 20
XULAST =1.
XFRAC(1)=0.05 ;XFRAC(5)=0.25
XFRAC(9)=0.45 ;XFRAC(13)=0.65
XFRAC(17)=0.85
************************************************************
Group 4. Y-Direction Grid Spacing
NY = 10
YVLAST =1.
RINNER =0.1 ;SNALFA =0.
YFRAC(1)=0.1 ;YFRAC(2)=0.2
YFRAC(3)=0.3 ;YFRAC(4)=0.4
YFRAC(5)=0.5 ;YFRAC(6)=0.6
YFRAC(7)=0.7 ;YFRAC(8)=0.8
YFRAC(9)=0.9 ;YFRAC(10)=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(1)=P1 ;NAME(3)=U1
NAME(5)=V1 ;NAME(14)=RCTD
NAME(145)=RHO1 ;NAME(146)=TMP1
NAME(147)=ENUL ;NAME(148)=NPOR
NAME(149)=EPOR
* 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,N,N,N,Y)
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(RHO1,Y,N,N,N,N,Y)
SOLUTN(TMP1,Y,N,N,N,N,Y)
SOLUTN(ENUL,Y,N,N,N,N,Y)
SOLUTN(NPOR,Y,N,N,N,N,Y)
SOLUTN(EPOR,Y,N,N,N,N,Y)
DEN1 = 145
VISL = 147
EPOR = 149 ;HPOR = 0 ;NPOR = 148 ;VPOR = 0
TEMP1 = 146
************************************************************
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
ISOLX = -1 ;ISOLY = -1 ;ISOLZ = -1
************************************************************
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 =0. ;DRH1DP =0.
RHO1A =1. ;RHO1B =5.
RHO1C =0.
TMP1A =0. ;TMP1B =0.
TMP1C =0.
TMP2A =0. ;TMP2B =0.
TMP2C =0.
EMISS =0. ;SCATT =0.
ENUL =1.0E-05 ;ENUT =1.
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)=100.
FIINIT(V1)=0. ;FIINIT(RCTD)=0.95
FIINIT(RHO1)=1.0E-10 ;FIINIT(TMP1)=1.0E-10
FIINIT(ENUL)=1.0E-10 ;FIINIT(NPOR)=1.
FIINIT(EPOR)=1.
No PATCHes yet used for this Group
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(IYEQ1 ,SOUTH , 1, 4, 1, 1, 1, 1, 1, 1)
COVAL(IYEQ1 ,P1 , FIXFLU ,100. )
COVAL(IYEQ1 ,U1 ,0. ,0. )
COVAL(IYEQ1 ,V1 ,0. ,100. )

PATCH(IYEQNY ,NORTH , 16, 20, 10, 10, 1, 1, 1, 1)
COVAL(IYEQNY ,P1 ,1. ,0. )
COVAL(IYEQNY ,RCTD,0. , SAME )

PATCH(CHSOTERM,PHASEM, 1, 20, 1, 10, 1, 1, 1, 1)
COVAL(CHSOTERM,RCTD, GRND7 ,1. )
XCYCLE = F
EGWF = T
WALLCO = GRND2
************************************************************
Group 14. Downstream Pressure For PARAB
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 50 ;ISWC1 = 1
LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
SELREF = T
RESFAC =1.0E-02
************************************************************
Group 16. Terminate Iterations
LITER(P1)=20 ;LITER(U1)=10
LITER(V1)=10 ;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,0.5)
RELAX(U1,FALSDT,1.0E-04)
RELAX(V1,FALSDT,2.0E-04)
RELAX(RCTD,LINRLX,0.5)
RELAX(RHO1,LINRLX,1.)
RELAX(TMP1,LINRLX,1.)
RELAX(ENUL,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)=1.0E+10 ;VARMIN(RCTD)=-1.0E+10
VARMAX(RHO1)=1.0E+10 ;VARMIN(RHO1)=-1.0E+10
VARMAX(TMP1)=1.0E+10 ;VARMIN(TMP1)=-1.0E+10
VARMAX(ENUL)=1.0E+10 ;VARMIN(ENUL)=-1.0E+10
VARMAX(NPOR)=1.0E+10 ;VARMIN(NPOR)=-1.0E+10
VARMAX(EPOR)=1.0E+10 ;VARMIN(EPOR)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
PARSOL = F
ISG62 = 1
CHSOA =5000. ;CHSOB =6.
************************************************************
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(RCTD,Y,N,Y,Y,Y,Y)
OUTPUT(RHO1,Y,N,Y,N,N,N)
OUTPUT(TMP1,Y,N,Y,N,N,N)
OUTPUT(ENUL,Y,N,Y,N,N,N)
OUTPUT(NPOR,Y,N,Y,N,N,N)
OUTPUT(EPOR,Y,N,Y,N,N,N)
************************************************************
Group 22. Monitor Print-Out
IXMON = 19 ;IYMON = 9 ;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 = 4 ;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

PATCH(XWISE ,PROFIL, 10, 20, 1, 1, 1, 1, 1, 1)
PLOT(XWISE ,RCTD,0. ,0. )

PATCH(MAP ,CONTUR, 1, 20, 1, 10, 1, 1, 1, 1)
PLOT(MAP ,RCTD,0. ,10. )
************************************************************
Group 24. Dumps For Restarts
SAVE = T ;NOWIPE = F
NSAVE =CHAM
STOP
```