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TALK=T;RUN(1,1)
DISPLAY
An extra momentum source is added to the axial momentum
equation to represent a buoyancy force, in order to simulate
free convection in a pipe flow.

. - .
/       \
|         |
|\       /|
Axial    g    |         | ^
buoyancy |    |         | |
force    v    |         | |z
acts as       |         |
momentum      |  . - .  |
source        |/       \|
|  ^   ^  |  Fixed mass,
\ |   | /---momentum and
| - |     enthalpy flux
-->    into inlet
r
ENDDIS
PHOTON USE
p
parphi
10 1

up z
gr ou x 1
msg radial scal is enlarged by factor of 10
msg velocity vectors
vec x 1 sh
pause
msg enthalpy contours
con h1 x 1 fi;0.001
pause
msg presure contours
con p1 x 1 fi;0.001
pause
msg velocity contours
con w1 x 1 fi;0.001
ENDUSE
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************

TEXT(Pipe Flow With Axial Free Convec        )

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

IRUNN = 1 ;LIBREF = 0
************************************************************
Group 2. Time dependence
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = F
NX = 1
XULAST =1.
XFRAC(1)=1.
************************************************************
Group 4. Y-Direction Grid Spacing
NY = 20
YVLAST =1.0E-02
YFRAC(1)=0.05 ;YFRAC(3)=0.15
YFRAC(5)=0.25 ;YFRAC(7)=0.35
YFRAC(9)=0.45 ;YFRAC(11)=0.55
YFRAC(13)=0.65 ;YFRAC(15)=0.75
YFRAC(17)=0.85 ;YFRAC(19)=0.95
************************************************************
Group 5. Z-Direction Grid Spacing
PARAB = T
NZ = 20
ZWLAST =0.2
ZFRAC(1)=0.05 ;ZFRAC(11)=0.55
************************************************************
Group 6. Body-Fitted Coordinates
************************************************************
Group 7. Variables: STOREd,SOLVEd,NAMEd
ONEPHS = T
NAME(1)=P1 ;NAME(5)=V1
NAME(7)=W1 ;NAME(14)=H1
NAME(150)=PRPS
* 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,Y,N,N,Y)
SOLUTN(V1,Y,Y,Y,N,N,Y)
SOLUTN(W1,Y,Y,Y,N,N,Y)
SOLUTN(H1,Y,Y,N,N,N,Y)
SOLUTN(PRPS,Y,N,N,N,N,Y)
PRPS = 150
************************************************************
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(V1,Y,Y,Y,Y,Y,Y)
TERMS(W1,Y,Y,Y,Y,Y,Y)
TERMS(H1,Y,Y,Y,Y,Y,Y)
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 =1.189 ;TMP1 =0.
EL1 =0.
TSURR =0. ;TEMP0 =0.
PRESS0 =0.
DVO1DT =3.41E-03 ;DRH1DP =0.
EMISS =0. ;SCATT =0.
ENUL =1.544E-05 ;ENUT =0.
PRNDTL(V1)=1. ;PRNDTL(W1)=1.
PRNDTL(H1)=0.7
PRT(V1)=1. ;PRT(W1)=1.
PRT(H1)=1.
CP1 =1005. ;CP2 =1.
************************************************************
Group 10.Inter-Phase Transfer Processes
************************************************************
Group 11.Initial field variables (PHIs)
FIINIT(P1)=1.0E-10 ;FIINIT(V1)=1.0E-10
FIINIT(W1)=1.0E-10 ;FIINIT(H1)=1.0E-10
FIINIT(PRPS)=-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(UNIFORM ,LOW , 1, 1, 1, 20, 1, 1, 1, 1)
COVAL(UNIFORM ,P1 , FIXFLU ,0.1 )
COVAL(UNIFORM ,V1 ,0. ,0. )
COVAL(UNIFORM ,W1 ,0. ,0.1 )
COVAL(UNIFORM ,H1 ,0. ,0. )

PATCH(PIPE ,NWALL , 1, 1, 20, 20, 1, 20, 1, 1)
COVAL(PIPE ,W1 ,1. ,0. )
COVAL(PIPE ,H1 ,1. ,1000. )

PATCH(BUOYANCY,PHASEM, 1, 1, 1, 20, 1, 20, 1, 1)
COVAL(BUOYANCY,W1 , FIXFLU , GRND3 )
XCYCLE = F
EGWF = T
WALLCO = GRND2
BUOYA =0. ; BUOYB =0.
BUOYC =-9.81
************************************************************
Group 14. Downstream Pressure For PARAB
IPARAB = 0
AZPH =0. ;PBAR =0.
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 1 ;ISWC1 = 1
LITHYD = 30 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
SELREF = T
RESFAC =1.0E-04
************************************************************
Group 16. Terminate Iterations
LITER(P1)=20 ;LITER(V1)=10
LITER(W1)=10 ;LITER(H1)=20
ENDIT(P1)=1.0E-03 ;ENDIT(V1)=1.0E-03
ENDIT(W1)=1.0E-03 ;ENDIT(H1)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(P1,LINRLX,1.)
RELAX(V1,FALSDT,1.)
RELAX(W1,FALSDT,1.)
RELAX(H1,FALSDT,1.0E+09)
RELAX(PRPS,LINRLX,1.)
OVRRLX =0.
EXPERT = F ;NNORSL = F
************************************************************
Group 18. Limits
VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-1.0E+10
VARMAX(V1)=1.0E+06 ;VARMIN(V1)=-1.0E+06
VARMAX(W1)=1.0E+06 ;VARMIN(W1)=-1.0E+06
VARMAX(H1)=1.0E+10 ;VARMIN(H1)=-1.0E+10
VARMAX(PRPS)=1.0E+10 ;VARMIN(PRPS)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
PARSOL = F
ISG62 = 1
SPEDAT(SET,DOMAIN,PHASE_1_MAT,I,0)
************************************************************
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(V1,Y,Y,Y,Y,Y,Y)
OUTPUT(W1,Y,Y,Y,Y,Y,Y)
OUTPUT(H1,Y,N,Y,Y,Y,Y)
OUTPUT(PRPS,Y,N,Y,N,N,N)
************************************************************
Group 22. Monitor Print-Out
IXMON = 1 ;IYMON = 5 ;IZMON = 1
NPRMON = 30 ;NPRMNT = 1 ;TSTSWP = 5
UWATCH = T ;USTEER = T
HIGHLO = F
************************************************************
Group 23.Field Print-Out & Plot Control
NPRINT = 100000 ;NUMCLS = 5
NYPRIN = 2 ;IYPRF = 1 ;IYPRL = 10000
NZPRIN = 10 ;IZPRF = 1 ;IZPRL = 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(EXIT ,PROFIL, 1, 1, 1, 20, 20, 20, 1, 1)
PLOT(EXIT ,W1 ,0. ,0. )
PLOT(EXIT ,H1 ,0. ,0. )
************************************************************
Group 24. Dumps For Restarts
SAVE = T ;NOWIPE = F
NSAVE =CHAM
IDISPA = 1 ;IDISPB = 0 ;IDISPC = 0
STOP
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