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TALK=T;RUN(1,1)
AUTOPLOT USE
file
p3 5
p6
p9
p12

da 1
pt1

da 2
pt1

da 3
pt1

da 4
pt1
screen
msg volume fraction of gas along length of duct at t=45s
blb1 1
pl 1
msg press  to continue
pause
screen
msg volume fraction of gas along length of duct at t=90s
blb1 2
pl 2
msg press  to continue
pause
screen
msg volume fraction of gas along length of duct at t=135s
blb1 3
pl 3
msg press  to continue
pause
screen
msg volume fraction of gas along length of duct at t=180s
blb1 4
pl 4
msg press e to END
enduse
DISPLAY
1D TRANSIENT PHASE SEPARATION OF GAS & LIQUID
1-dimensional (x), transient, elliptic simulation

This case calculates the separation of gas and liquid which at
the start of the calculation are uniformly mixed in a closed duct.
Under the influence of gravity, the lighter phase (gas) starts to
rise at a constant slip velocity which is assumed to be the
terminal velocity. The liquid is consequently displaced downwards.

+------------+
^     |    gas     |
|     |     +      |
|x    |   liquid   |
+------------+
enddis
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************

TEXT(Trans. phase separation of gas/liq:P112 )

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

IRUNN = 1 ;LIBREF = 1
************************************************************
Group 2. Time dependence
* Set overall time and no. of steps
TFIRST =0. ;TLAST =600.
FSTEP = 1 ;LSTEP = 12
TFRAC(1)=0.025 ;TFRAC(2)=0.05
TFRAC(3)=0.075 ;TFRAC(4)=0.1
TFRAC(5)=0.125 ;TFRAC(6)=0.15
TFRAC(7)=0.175 ;TFRAC(8)=0.2
TFRAC(9)=0.225 ;TFRAC(10)=0.25
TFRAC(11)=0.275 ;TFRAC(12)=0.3
TFRAC(13)=0.325 ;TFRAC(14)=0.35
TFRAC(15)=0.375 ;TFRAC(16)=0.4
TFRAC(17)=0.425 ;TFRAC(18)=0.45
TFRAC(19)=0.475 ;TFRAC(20)=0.5
TFRAC(21)=0.525 ;TFRAC(22)=0.55
TFRAC(23)=0.575 ;TFRAC(24)=0.6
TFRAC(25)=0.625 ;TFRAC(26)=0.65
TFRAC(27)=0.675 ;TFRAC(28)=0.7
TFRAC(29)=0.725 ;TFRAC(30)=0.75
TFRAC(31)=0.775 ;TFRAC(32)=0.8
TFRAC(33)=0.825 ;TFRAC(34)=0.85
TFRAC(35)=0.875 ;TFRAC(36)=0.9
TFRAC(37)=0.925 ;TFRAC(38)=0.95
TFRAC(39)=0.975 ;TFRAC(40)=1.
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = T
NX = 20
XULAST =1.
XFRAC(1)=0.05 ;XFRAC(2)=0.1
XFRAC(3)=0.15 ;XFRAC(4)=0.2
XFRAC(5)=0.25 ;XFRAC(6)=0.3
XFRAC(7)=0.35 ;XFRAC(8)=0.4
XFRAC(9)=0.45 ;XFRAC(10)=0.5
XFRAC(11)=0.55 ;XFRAC(12)=0.6
XFRAC(13)=0.65 ;XFRAC(14)=0.7
XFRAC(15)=0.75 ;XFRAC(16)=0.8
XFRAC(17)=0.85 ;XFRAC(18)=0.9
XFRAC(19)=0.95 ;XFRAC(20)=1.
************************************************************
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 = T
NAME(1)=P1 ;NAME(3)=U1
NAME(16)=PT0 ;NAME(17)=PT1
NAME(148)=VISL ;NAME(149)=DEN1
NAME(150)=VFOL
* 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(PT0,Y,Y,N,N,N,Y)
SOLUTN(PT1,Y,Y,N,N,N,Y)
SOLUTN(VISL,Y,N,N,N,N,Y)
SOLUTN(DEN1,Y,N,N,N,N,Y)
SOLUTN(VFOL,Y,Y,N,N,N,Y)
DEN1 = 149
VISL = 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(PT0,N,Y,Y,Y,Y,Y)
TERMS(PT1,N,Y,Y,Y,N,Y)
TERMS(VFOL,N,N,N,N,Y,Y)
DIFCUT =0.5 ;ZDIFAC =1.
GALA = T ;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 = GRND ;TMP1 =0.
EL1 =0.
TSURR =0. ;TEMP0 =0.
PRESS0 =0.
DVO1DT =0. ;DRH1DP =0.
RHO1A =0. ;RHO1B =0.
RHO1C =0.
EMISS =0. ;SCATT =0.
ENUL =1.0E-06 ;ENUT =0.
CINT(PT0)=1. ;CINT(PT1)=1.0E-04
CINT(VISL)=1. ;CINT(DEN1)=1.
CINT(VFOL)=1.
PHINT(PT0)=-2.022E+04 ;PHINT(PT1)=1.
PHINT(VISL)=-2.022E+04 ;PHINT(DEN1)=-2.022E+04
PHINT(VFOL)=-2.022E+04
PRNDTL(U1)=1. ;PRNDTL(PT0)=1.0E-06
PRNDTL(PT1)=1.
PRT(U1)=1. ;PRT(PT0)=1.
PRT(PT1)=1.
CP1 =1. ;CP2 =1.
************************************************************
Group 10.Inter-Phase Transfer Processes
************************************************************
Group 11.Initial field variables (PHIs)
FIINIT(P1)=0. ;FIINIT(U1)=1.0E-10
FIINIT(PT0)=0.5 ;FIINIT(PT1)=0.5
FIINIT(VISL)=1.0E-10 ;FIINIT(DEN1)=1.0E-10
FIINIT(VFOL)=1.0E-10
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(REFP1 ,CELL , 20, 20, 1, 1, 1, 1, 1, 40)
COVAL(REFP1 ,P1 ,1. ,0. )

PATCH(BUOY ,PHASEM, 1, 20, 1, 1, 1, 1, 1, 40)
COVAL(BUOY ,U1 , FIXFLU , GRND1 )
XCYCLE = F
EGWF = T
WALLCO = GRND2
BUOYA =-9.81 ; BUOYB =0.
BUOYC =0.
************************************************************
Group 14. Downstream Pressure For PARAB
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 25 ;ISWC1 = 1
LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
SELREF = T
RESFAC =1.0E-04
************************************************************
Group 16. Terminate Iterations
LITER(P1)=20 ;LITER(U1)=10
LITER(PT0)=5 ;LITER(PT1)=10
LITER(VFOL)=20
ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03
ENDIT(PT0)=1.0E-06 ;ENDIT(PT1)=1.0E-08
ENDIT(VFOL)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(P1,LINRLX,1.)
RELAX(U1,FALSDT,10.)
RELAX(PT0,LINRLX,0.5)
RELAX(PT1,LINRLX,0.3)
RELAX(VISL,LINRLX,1.)
RELAX(DEN1,LINRLX,1.)
RELAX(VFOL,FALSDT,1.0E+09)
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(PT0)=1.0E+10 ;VARMIN(PT0)=-1.0E+10
VARMAX(PT1)=1.0E+10 ;VARMIN(PT1)=-1.0E+10
VARMAX(VISL)=1.0E+10 ;VARMIN(VISL)=-1.0E+10
VARMAX(DEN1)=1.0E+10 ;VARMIN(DEN1)=-1.0E+10
VARMAX(VFOL)=1.0E+10 ;VARMIN(VFOL)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
ASLP = T
PARSOL = F
ISG62 = 1
SPEDAT(SET,GXMONI,TRANSIENT,L,F)
************************************************************
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,N,Y,Y,Y,Y)
OUTPUT(PT0,Y,N,Y,Y,Y,Y)
OUTPUT(PT1,Y,Y,Y,Y,Y,Y)
OUTPUT(VISL,Y,N,Y,N,N,N)
OUTPUT(DEN1,Y,N,Y,N,N,N)
OUTPUT(VFOL,N,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 = 100000 ;ISTPRF = 1 ;ISTPRL = 100000
NXPRIN = 1 ;IXPRF = 1 ;IXPRL = 10000
IPLTF = 2 ;IPLTL = 25 ;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
IDISPA = 3 ;IDISPB = 0 ;IDISPC = 0
CSG1    ='P'
STOP
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