```
TALK=T;RUN(1,1)
AUTOPLOT USE
file
phi 5

da 1
p1 x 1 119

da 1
gasu x 1 119

da 1
r1   x 1 119

screen
pl 1 ; colour3 1 1
msg pressure profile
msg press  to continue
pause
screen
pl 2 ; colour8 2 2
msg gas velocity
msg press  to continue
pause
screen
pl 3  ;scale y 0 1;coloure 3 3
msg gas volume fraction
msg press e to END
enduse
DISPLAY
NUMERICAL BENCHMARK PROBLEM 1.1:  CONVERGENT-DIVERGENT NOZZLE
Two fluids flow through a convergent-divergent nozzle. The
lighter one is a compressible gas; the second one, which is
in much smaller volumetric concentration, is incompressible.
The density ratio is such that the pressure gradients which
accelerate the gas have less effect upon the motion of the
heavier fluid; but the latter is nevertheless also
accelerated by the drag exerted upon it by the gas.

The task is to predict the distributions of pressure, volume
fraction and velocity along the duct, under various
conditions.
ENDDIS
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************

TEXT(CF=1.E3 RHO2=10. POUT=-.5 :         W877)

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

IRUNN = 1 ;LIBREF = 876
************************************************************
Group 2. Time dependence
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = T
NX = 120
XULAST =1.
Method of pairs used for grid setting.
XFRAC(2)=8.333334E-03
************************************************************
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 = F
EQUVEL = F
NAME(1)=P1 ;NAME(3)=GASU
NAME(4)=SOLU ;NAME(9)=R1
NAME(10)=R2 ;NAME(149)=DEN1
NAME(150)=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(GASU,Y,Y,N,N,N,Y)
SOLUTN(SOLU,Y,Y,N,N,N,Y)
SOLUTN(R1,Y,Y,N,N,N,Y)
SOLUTN(R2,Y,Y,N,N,N,Y)
SOLUTN(DEN1,Y,N,N,N,N,Y)
SOLUTN(EPOR,Y,N,N,N,N,Y)
DEN1 = 149
EPOR = 150 ;HPOR = 0 ;NPOR = 0 ;VPOR = 0
************************************************************
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(GASU,Y,Y,N,Y,Y,Y)
TERMS(SOLU,Y,Y,N,Y,N,Y)
TERMS(R1,Y,Y,N,Y,Y,Y)
TERMS(R2,Y,Y,N,Y,N,Y)
DIFCUT =0.5 ;ZDIFAC =1.
GALA = F ;ADDDIF = F
NEWRH1 = T
EQDVDP = 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 = GRND3 ;TMP1 =0.
EL1 =0.
TSURR =0. ;TEMP0 =0.
PRESS0 =1.
DVO1DT =0. ;DRH1DP = GRND3
RHO1A =1. ;RHO1B =0.714
RHO1C =0.
EMISS =0. ;SCATT =0.
RHO2 =10. ;TMP2 =0.
EL2 =0.
DVO2DT =0. ;DRH2DP =0.
ENUL =0. ;ENUT =0.
PHINT(GASU)=-2.022E+04 ;PHINT(SOLU)=-2.022E+04
PHINT(R1)=-2.022E+04 ;PHINT(R2)=-2.022E+04
CP1 =1. ;CP2 =1.
************************************************************
Group 10.Inter-Phase Transfer Processes
CFIPS =1000.
RLOLIM =0. ;CMDOT =0.
CINT(P1)=1. ;CINT(GASU)=1.
CINT(SOLU)=1. ;CINT(R1)=1.
CINT(R2)=1.
PHINT(P1)=-2.022E+04 ;PHINT(GASU)=-2.022E+04
PHINT(SOLU)=-2.022E+04 ;PHINT(R1)=-2.022E+04
PHINT(R2)=-2.022E+04
************************************************************
Group 11.Initial field variables (PHIs)
FIINIT(P1)=3. ;FIINIT(GASU)=0.5
FIINIT(SOLU)=0.5 ;FIINIT(R1)=0.9
FIINIT(R2)=0.1 ;FIINIT(DEN1)=3.
FIINIT(EPOR)=1.

PATCH(CONVERGE,LINVLX, 30, 120, 1, 1, 1, 1, 1, 1)
INIT(CONVERGE,EPOR,-2. ,0. )

PATCH(DIVERGE ,LINVLX, 60, 120, 1, 1, 1, 1, 1, 1)
INIT(DIVERGE ,EPOR,3. ,0. )
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(INLET ,WEST , 1, 1, 1, 1, 1, 1, 1, 1)
COVAL(INLET ,GASU,0. ,0.5 )
COVAL(INLET ,SOLU,0. ,0.5 )
COVAL(INLET ,R1 , FIXFLU ,1.5 )
COVAL(INLET ,R2 , FIXFLU ,0.5 )

PATCH(OUTLET ,CELL , 120, 120, 1, 1, 1, 1, 1, 1)
COVAL(OUTLET ,GASU,0. ,0. )
COVAL(OUTLET ,SOLU,0. ,0. )
COVAL(OUTLET ,R1 ,1000. ,-0.5 )
COVAL(OUTLET ,R2 ,1.0E+04 ,-0.5 )
XCYCLE = F
EGWF = T
WALLCO = GRND2
************************************************************
Group 14. Downstream Pressure For PARAB
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 200 ;ISWC1 = 1
LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
ISWR1 = 1 ;ISWR2 = 10000
SELREF = T
RESFAC =1.0E-04
************************************************************
Group 16. Terminate Iterations
LITER(P1)=20 ;LITER(GASU)=10
LITER(SOLU)=10 ;LITER(R1)=1
LITER(R2)=1
ENDIT(P1)=1.0E-03 ;ENDIT(GASU)=1.0E-03
ENDIT(SOLU)=1.0E-03 ;ENDIT(R1)=1.0E-03
ENDIT(R2)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(P1,LINRLX,0.5)
RELAX(GASU,FALSDT,1.)
RELAX(SOLU,FALSDT,1.)
RELAX(R1,LINRLX,0.3)
RELAX(R2,LINRLX,0.3)
RELAX(DEN1,LINRLX,1.)
OVRRLX =0.
EXPERT = F ;NNORSL = F
************************************************************
Group 18. Limits
VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-1.0E+10
VARMAX(GASU)=1.0E+06 ;VARMIN(GASU)=-1.0E+06
VARMAX(SOLU)=1.0E+06 ;VARMIN(SOLU)=-1.0E+06
VARMAX(R1)=1. ;VARMIN(R1)=1.0E-06
VARMAX(R2)=1. ;VARMIN(R2)=1.0E-06
VARMAX(DEN1)=1.0E+10 ;VARMIN(DEN1)=-1.0E+10
VARMAX(EPOR)=1.0E+10 ;VARMIN(EPOR)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
PARSOL = F
ISG62 = 1
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,N,Y,Y,Y,Y)
OUTPUT(GASU,Y,N,Y,Y,Y,Y)
OUTPUT(SOLU,Y,N,Y,Y,Y,Y)
OUTPUT(R1,N,N,N,N,N,N)
OUTPUT(R2,Y,N,Y,Y,Y,Y)
OUTPUT(DEN1,Y,N,Y,N,N,N)
OUTPUT(EPOR,Y,N,Y,N,N,N)
************************************************************
Group 22. Monitor Print-Out
IXMON = 60 ;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
NXPRIN = 6 ;IXPRF = 1 ;IXPRL = 10000
IPLTF = 3 ;IPLTL = 200 ;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(LONGPLOT,PROFIL, 1, 120, 1, 1, 1, 1, 1, 1)
PLOT(LONGPLOT,P1 ,0. ,0. )
PLOT(LONGPLOT,GASU,-1. ,-1. )
PLOT(LONGPLOT,SOLU,-1. ,-1. )
PLOT(LONGPLOT,R2 ,0. ,0. )
************************************************************
Group 24. Dumps For Restarts
SAVE = T ;NOWIPE = F
NSAVE =CHAM
STOP
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