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

da 1
au1
screen
msg 1st-phase velocity at t=1s
pl 1
msg press  to continue
pause
cl
da 1
bu2
screen
msg 2nd-phase velocity at t=1s
pl 1
msg press  to continue
pause
cl
da 1
gas
screen
msg 1st-phase volume fraction at t=1s
pl 1
msg press  to continue
pause
cl
da 1
dh2
screen
msg 2nd-phase enthalpy at t=1s
pl 1
msg press  to continue
pause
cl
da 1
p1
screen
msg pressure at t=1s
pl 1
msg press e to END
enduse
DISPLAY
This run illustrates what happens in a 1D thermosyphon with a
constant heat-flux boundary condition.
Interesting variants include: changes to the boundary conditions;
changes to the initial distributions of water and steam;and
changes to the interphase processes constants.
ENDDIS
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************

TEXT(1D TRANSIENT THERMOSYPHON :         W422)

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

IRUNN = 1 ;LIBREF = 14
************************************************************
Group 2. Time dependence
* Set overall time and no. of steps
TFIRST =0. ;TLAST =1.
FSTEP = 1 ;LSTEP = 100
TFRAC(1)=1.0E-02 ;TFRAC(2)=0.02
TFRAC(3)=0.03 ;TFRAC(4)=0.04
TFRAC(5)=0.05 ;TFRAC(6)=0.06
TFRAC(7)=0.07 ;TFRAC(8)=0.08
TFRAC(9)=0.09 ;TFRAC(10)=0.1
TFRAC(11)=0.11 ;TFRAC(12)=0.12
TFRAC(13)=0.13 ;TFRAC(14)=0.14
TFRAC(15)=0.15 ;TFRAC(16)=0.16
TFRAC(17)=0.17 ;TFRAC(18)=0.18
TFRAC(19)=0.19 ;TFRAC(20)=0.2
TFRAC(21)=0.21 ;TFRAC(22)=0.22
TFRAC(23)=0.23 ;TFRAC(24)=0.24
TFRAC(25)=0.25 ;TFRAC(26)=0.26
TFRAC(27)=0.27 ;TFRAC(28)=0.28
TFRAC(29)=0.29 ;TFRAC(30)=0.3
TFRAC(31)=0.31 ;TFRAC(32)=0.32
TFRAC(33)=0.33 ;TFRAC(34)=0.34
TFRAC(35)=0.35 ;TFRAC(36)=0.36
TFRAC(37)=0.37 ;TFRAC(38)=0.38
TFRAC(39)=0.39 ;TFRAC(40)=0.4
TFRAC(41)=0.41 ;TFRAC(42)=0.42
TFRAC(43)=0.43 ;TFRAC(44)=0.44
TFRAC(45)=0.45 ;TFRAC(46)=0.46
TFRAC(47)=0.47 ;TFRAC(48)=0.48
TFRAC(49)=0.49 ;TFRAC(50)=0.5
TFRAC(51)=0.51 ;TFRAC(52)=0.52
TFRAC(53)=0.53 ;TFRAC(54)=0.54
TFRAC(55)=0.55 ;TFRAC(56)=0.56
TFRAC(57)=0.57 ;TFRAC(58)=0.58
TFRAC(59)=0.59 ;TFRAC(60)=0.6
TFRAC(61)=0.61 ;TFRAC(62)=0.62
TFRAC(63)=0.63 ;TFRAC(64)=0.64
TFRAC(65)=0.65 ;TFRAC(66)=0.66
TFRAC(67)=0.67 ;TFRAC(68)=0.68
TFRAC(69)=0.69 ;TFRAC(70)=0.7
TFRAC(71)=0.71 ;TFRAC(72)=0.72
TFRAC(73)=0.73 ;TFRAC(74)=0.74
TFRAC(75)=0.75 ;TFRAC(76)=0.76
TFRAC(77)=0.77 ;TFRAC(78)=0.78
TFRAC(79)=0.79 ;TFRAC(80)=0.8
TFRAC(81)=0.81 ;TFRAC(82)=0.82
TFRAC(83)=0.83 ;TFRAC(84)=0.84
TFRAC(85)=0.85 ;TFRAC(86)=0.86
TFRAC(87)=0.87 ;TFRAC(88)=0.88
TFRAC(89)=0.89 ;TFRAC(90)=0.9
TFRAC(91)=0.91 ;TFRAC(92)=0.92
TFRAC(93)=0.93 ;TFRAC(94)=0.94
TFRAC(95)=0.95 ;TFRAC(96)=0.96
TFRAC(97)=0.97 ;TFRAC(98)=0.98
TFRAC(99)=0.99 ;TFRAC(100)=1.
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = T
NX = 10
XULAST =0.5
XFRAC(1)=0.1 ;XFRAC(2)=0.2
XFRAC(3)=0.3 ;XFRAC(4)=0.4
XFRAC(5)=0.5 ;XFRAC(6)=0.6
XFRAC(7)=0.7 ;XFRAC(8)=0.8
XFRAC(9)=0.9 ;XFRAC(10)=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 = F
EQUVEL = F
NAME(1)=P1 ;NAME(3)=AU1
NAME(4)=BU2 ;NAME(9)=GAS
NAME(10)=LIQ ;NAME(14)=CH1
NAME(15)=DH2 ;NAME(148)=TMP2
NAME(149)=TMP1 ;NAME(150)=MDOT
* 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(AU1,Y,Y,N,N,N,Y)
SOLUTN(BU2,Y,Y,N,N,N,Y)
SOLUTN(GAS,Y,Y,N,N,N,Y)
SOLUTN(LIQ,Y,Y,N,N,N,Y)
SOLUTN(CH1,Y,Y,N,N,N,Y)
SOLUTN(DH2,Y,Y,N,N,N,Y)
SOLUTN(TMP2,Y,N,N,N,N,Y)
SOLUTN(TMP1,Y,N,N,N,N,Y)
SOLUTN(MDOT,Y,N,N,N,N,Y)
INTMDT = 150
TEMP1 = 149
TEMP2 = 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(AU1,Y,Y,Y,Y,Y,Y)
TERMS(BU2,Y,Y,Y,Y,N,Y)
TERMS(GAS,Y,Y,Y,Y,Y,Y)
TERMS(LIQ,Y,Y,Y,Y,N,Y)
TERMS(CH1,Y,Y,Y,Y,Y,Y)
TERMS(DH2,Y,Y,Y,Y,N,Y)
DIFCUT =0.5 ;ZDIFAC =1.
GALA = F ;ADDDIF = F
EQDVDP = F
HUNIT =1.
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 = GRND2
EL1 =0.
TSURR =0. ;TEMP0 =0.
PRESS0 =1.0E+05
DVO1DT =0. ;DRH1DP =0.
TMP1A =-1150. ;TMP1B =0.
TMP1C =0.
EMISS =0. ;SCATT =0.
RHO2 =1000. ;TMP2 = GRND2
EL2 =0.
DVO2DT =0. ;DRH2DP =0.
TMP2A =0. ;TMP2B =0.
TMP2C =0.
ENUL =1.0E-05 ;ENUT =0.
PHINT(AU1)=-2.022E+04 ;PHINT(BU2)=-2.022E+04
PHINT(GAS)=-2.022E+04 ;PHINT(LIQ)=-2.022E+04
PHINT(CH1)=2.5E+06 ;PHINT(DH2)=4.0E+05
PRNDTL(AU1)=1. ;PRNDTL(BU2)=1.
PRNDTL(GAS)=1. ;PRNDTL(LIQ)=1.
PRNDTL(CH1)=1. ;PRNDTL(DH2)=1.
PRT(AU1)=1. ;PRT(BU2)=1.
PRT(GAS)=1. ;PRT(LIQ)=1.
PRT(CH1)=1. ;PRT(DH2)=1.
CP1 =1999.999878 ;CP2 =3999.999756
************************************************************
Group 10.Inter-Phase Transfer Processes
CFIPS =100.
RLOLIM =0. ;CMDOT = HEATBL
CINT(P1)=1. ;CINT(AU1)=1.
CINT(BU2)=1. ;CINT(GAS)=1.
CINT(LIQ)=1. ;CINT(CH1)=1000.
CINT(DH2)=1000.
PHINT(P1)=-2.022E+04 ;PHINT(AU1)=-2.022E+04
PHINT(BU2)=-2.022E+04 ;PHINT(GAS)=-2.022E+04
PHINT(LIQ)=-2.022E+04 ;PHINT(CH1)=2.5E+06
PHINT(DH2)=4.0E+05
************************************************************
Group 11.Initial field variables (PHIs)
FIINIT(P1)=1.0E-10 ;FIINIT(AU1)=1.0E-10
FIINIT(BU2)=1.0E-10 ;FIINIT(GAS)=0.9
FIINIT(LIQ)=0.1 ;FIINIT(CH1)=2.5E+06
FIINIT(DH2)=4.0E+05 ;FIINIT(TMP2)=1.0E-10
FIINIT(TMP1)=1.0E-10 ;FIINIT(MDOT)=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(HEATER ,CELL , 1, 1, 1, 1, 1, 1, 1, 100)
COVAL(HEATER ,DH2 , FIXFLU ,1.0E+07 )

PATCH(REFP ,CELL , 10, 10, 1, 1, 1, 1, 1, 100)
COVAL(REFP ,AU1 ,0. ,0. )
COVAL(REFP ,BU2 ,0. ,0. )
COVAL(REFP ,GAS ,1. ,0. )
COVAL(REFP ,CH1 ,0. ,2.5E+06 )
COVAL(REFP ,DH2 , FIXVAL ,3.9E+05 )

PATCH(BUOYANCY,PHASEM, 1, 10, 1, 1, 1, 1, 1, 100)
COVAL(BUOYANCY,AU1 , FIXFLU ,-9.81 )
COVAL(BUOYANCY,BU2 , FIXFLU ,-9.81 )
XCYCLE = F
EGWF = T
WALLCO = GRND2
************************************************************
Group 14. Downstream Pressure For PARAB
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 40 ;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(AU1)=10
LITER(BU2)=10 ;LITER(GAS)=1
LITER(LIQ)=1 ;LITER(CH1)=20
LITER(DH2)=20
ENDIT(P1)=1.0E-03 ;ENDIT(AU1)=1.0E-03
ENDIT(BU2)=1.0E-03 ;ENDIT(GAS)=1.0E-03
ENDIT(LIQ)=1.0E-03 ;ENDIT(CH1)=1.0E-03
ENDIT(DH2)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(P1,LINRLX,1.)
RELAX(AU1,FALSDT,1.)
RELAX(BU2,FALSDT,1.)
RELAX(GAS,LINRLX,0.5)
RELAX(LIQ,LINRLX,0.5)
RELAX(CH1,FALSDT,1.0E+09)
RELAX(DH2,FALSDT,1.0E+09)
RELAX(TMP2,LINRLX,1.)
RELAX(TMP1,LINRLX,1.)
RELAX(MDOT,LINRLX,1.)
OVRRLX =0.
EXPERT = F ;NNORSL = F
************************************************************
Group 18. Limits
VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-1.0E+10
VARMAX(AU1)=1.0E+06 ;VARMIN(AU1)=-1.0E+06
VARMAX(BU2)=1.0E+06 ;VARMIN(BU2)=-1.0E+06
VARMAX(GAS)=1. ;VARMIN(GAS)=1.0E-06
VARMAX(LIQ)=1. ;VARMIN(LIQ)=1.0E-06
VARMAX(CH1)=1.0E+10 ;VARMIN(CH1)=-1.0E+10
VARMAX(DH2)=1.0E+10 ;VARMIN(DH2)=-1.0E+10
VARMAX(TMP2)=1.0E+10 ;VARMIN(TMP2)=-1.0E+10
VARMAX(TMP1)=1.0E+10 ;VARMIN(TMP1)=-1.0E+10
VARMAX(MDOT)=1.0E+10 ;VARMIN(MDOT)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
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,N,Y,Y,Y,Y)
OUTPUT(AU1,Y,N,Y,Y,Y,Y)
OUTPUT(BU2,Y,N,Y,Y,Y,Y)
OUTPUT(GAS,Y,N,Y,Y,Y,Y)
OUTPUT(LIQ,Y,N,Y,Y,Y,Y)
OUTPUT(CH1,Y,N,Y,Y,Y,Y)
OUTPUT(DH2,Y,N,Y,Y,Y,Y)
OUTPUT(TMP2,Y,N,Y,N,N,N)
OUTPUT(TMP1,Y,N,Y,N,N,N)
OUTPUT(MDOT,Y,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 = 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(LONGPLOT,PROFIL, 1, 10, 1, 1, 1, 1, 1, 100)
PLOT(LONGPLOT,AU1 ,0. ,0. )
PLOT(LONGPLOT,LIQ ,0. ,0. )

PATCH(TIMEPLOT,PROFIL, 1, 1, 1, 1, 1, 1, 1, 100)
PLOT(TIMEPLOT,LIQ ,0. ,0. )

PATCH(TIM1PLOT,PROFIL, 10, 10, 1, 1, 1, 1, 1, 100)
PLOT(TIM1PLOT,GAS ,0. ,0. )
************************************************************
Group 24. Dumps For Restarts
SAVE = T ;NOWIPE = F
NSAVE =CHAM
STOP
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