TALK=T;RUN(1,1)
DISPLAY
Steady turbulent flow develops in a 2D channel with smooth
uniform-temperature walls. The length/width ratio is 30, which
suffices for the flow to be fully developed at the outlet.
Wall at temperature TWALL
///////////////////////////////////////////////////////
Constant -------------------------------------------------------
specified ---> ->
mass-flux ---> -->
and ---> --->
velocity - - - - - - - - - - -Symmetry plane - - - - - - - - -
------>z
The Q1 contains PHOTON USE commands
ENDDIS
PHOTON USE
p
parphi
1 10 1
gr x 1
msg the grid, enlarged 10 times in the cross-stream direction
msg press return for the pressure distribution
gr off
gr ou x 1
msg pressures. Press return for contours of temperature
con p1 x 1 fi;0.1
pause
con off
red
msg Temperature contours. Press return for contours of W1
con TEMP x 1 fi;0.1
pause
con off
red
msg Longitudinal-velocity contours. Press return for LEN1
con W1 x 1 fi;0.1
pause
con off
red
msg Mixing-length contours. Press return for contours of ENUT
con LEn1 x 1 fi;0.1
pause
con off
red
msg Turbulent-viscosity contours. Press return for vectors
con ENUT x 1 fi;0.1
pause
con off
red
msg velocity vectors. Press E to end
vec x 1 sh
enduse
DISPLAY
This is like case 170; the Prandtl one-equation model is used with
the mixing length specified according to Nikuradse's formula.
ENDDIS
DISPLAY
This is like case 170; but the k-epsilon turbulence model is used.
ENDDIS
DISPLAY
The fully-developed flow of case 172 is computed directly, ie
without marching integration. The pressure gradient is arbitrary.
ENDDIS
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************
TEXT(Fully-Developed Flow; K-EPS Model )
************************************************************
************************************************************
IRUNN = 1 ;LIBREF = 172
************************************************************
Group 2. Time dependence
STEADY = T
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = T
NX = 1
XULAST =1.
XFRAC(1)=1.
************************************************************
Group 4. Y-Direction Grid Spacing
NY = 30
YVLAST =0.05
YFRAC(1)=0.078012 ;YFRAC(7)=0.335724
YFRAC(13)=0.534093 ;YFRAC(19)=0.709944
YFRAC(25)=0.872196
************************************************************
Group 5. Z-Direction Grid Spacing
PARAB = F
NZ = 1
ZWLAST =3.
ZFRAC(20)=1.
************************************************************
Group 6. Body-Fitted Coordinates
************************************************************
Group 7. Variables: STOREd,SOLVEd,NAMEd
ONEPHS = T
NAME(7)=W1 ;NAME(12)=KE
NAME(13)=EP ;NAME(14)=TEMP
NAME(149)=LEN1 ;NAME(150)=ENUT
* Y in SOLUTN argument list denotes:
* 1-stored 2-solved 3-whole-field
* 4-point-by-point 5-explicit 6-harmonic averaging
SOLUTN(W1,Y,Y,N,N,N,Y)
SOLUTN(KE,Y,Y,N,N,N,N)
SOLUTN(EP,Y,Y,N,N,N,N)
SOLUTN(TEMP,Y,Y,N,N,N,Y)
SOLUTN(LEN1,Y,N,N,N,N,Y)
SOLUTN(ENUT,Y,N,N,N,N,Y)
VIST = 150
LEN1 = 149
************************************************************
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(W1,N,N,Y,Y,Y,Y)
TERMS(KE,N,N,Y,Y,Y,N)
TERMS(EP,N,N,Y,Y,Y,N)
TERMS(TEMP,N,N,Y,Y,Y,Y)
DIFCUT =0. ;ZDIFAC =1.
GALA = F ;ADDDIF = F
NEWENT = 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 =1. ;TMP1 =0. ;EL1 = GRND4
TSURR =0. ;TEMP0 =0. ;PRESS0 =0.
DVO1DT =0. ;DRH1DP =0.
EMISS =0. ;SCATT =0.
RADIA =0. ;RADIB =0.
EL1A =0. ;EL1B =0. ;EL1C =0.
ENUL =5.0E-05 ;ENUT = GRND3
ENUTA =0. ;ENUTB =0. ;ENUTC =0.
IENUTA = 0
PRNDTL(W1)=1. ;PRNDTL(KE)=1.
PRNDTL(EP)=1. ;PRNDTL(TEMP)=0.7
PRT(W1)=1. ;PRT(KE)=1.
PRT(EP)=1.314 ;PRT(TEMP)=0.86
CP1 =1. ;CP2 =1.
************************************************************
Group 10.Inter-Phase Transfer Processes
************************************************************
Group 11.Initial field variables (PHIs)
FIINIT(W1)=50. ;FIINIT(KE)=11.249999
FIINIT(EP)=1377.697021 ;FIINIT(TEMP)=10.
FIINIT(LEN1)=1.0E-10 ;FIINIT(ENUT)=1.0E-03
No PATCHes yet used for this Group
INIADD = F
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(WFUN ,NWALL , 1, 1, 30, 30, 1, 20, 1, 1)
COVAL(WFUN ,W1 , GRND2 ,0. )
COVAL(WFUN ,KE , GRND2 , GRND2 )
COVAL(WFUN ,EP , GRND2 , GRND2 )
COVAL(WFUN ,TEMP, GRND2 ,1. )
PATCH(KESOURCE,PHASEM, 0, 0, 0, 0, 0, 0, 1, 1)
COVAL(KESOURCE,KE , GRND4 , GRND4 )
COVAL(KESOURCE,EP , GRND4 , GRND4 )
PATCH(PRESDIF ,HIGH , 1, 1, 1, 30, 1, 1, 1, 1)
COVAL(PRESDIF ,W1 , FIXFLU ,10. )
COVAL(PRESDIF ,TEMP, FIXFLU ,1. )
XCYCLE = F
EGWF = T
WALLCO = GRND2
************************************************************
Group 14. Downstream Pressure For PARAB
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 100 ;ISWC1 = 1
LITHYD = 15 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
SELREF = T
RESFAC =2.0E-04
************************************************************
Group 16. Terminate Iterations
LITER(W1)=10 ;LITER(KE)=20
LITER(EP)=20 ;LITER(TEMP)=20
ENDIT(W1)=1.0E-03 ;ENDIT(KE)=1.0E-03
ENDIT(EP)=1.0E-03 ;ENDIT(TEMP)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(W1,FALSDT,1.0E-02)
RELAX(KE,FALSDT,1.0E-03)
RELAX(EP,FALSDT,1.0E-03)
RELAX(TEMP,FALSDT,1.0E+09)
RELAX(LEN1,LINRLX,1.)
RELAX(ENUT,LINRLX,0.5)
KELIN = 0
OVRRLX =0.
EXPERT = F ;NNORSL = F
************************************************************
Group 18. Limits
VARMAX(W1)=1.0E+06 ;VARMIN(W1)=1.0E-10
VARMAX(KE)=1.0E+10 ;VARMIN(KE)=1.0E-10
VARMAX(EP)=1.0E+10 ;VARMIN(EP)=1.0E-10
VARMAX(TEMP)=1.0E+10 ;VARMIN(TEMP)=-1.0E+10
VARMAX(LEN1)=1.0E+10 ;VARMIN(LEN1)=-1.0E+10
VARMAX(ENUT)=1.0E+10 ;VARMIN(ENUT)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
DWDY = T
GENK = T
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(W1,Y,N,Y,Y,Y,Y)
OUTPUT(KE,Y,N,Y,Y,Y,Y)
OUTPUT(EP,Y,N,Y,Y,Y,Y)
OUTPUT(TEMP,Y,Y,Y,N,Y,Y)
OUTPUT(LEN1,Y,N,Y,N,N,N)
OUTPUT(ENUT,Y,N,Y,N,N,N)
************************************************************
Group 22. Monitor Print-Out
IXMON = 1 ;IYMON = 27 ;IZMON = 1
NPRMON = 4 ;NPRMNT = 1 ;TSTSWP = -1
UWATCH = T ;USTEER = T
HIGHLO = F
************************************************************
Group 23.Field Print-Out & Plot Control
NPRINT = 100000 ;NUMCLS = 5
NYPRIN = 6 ;IYPRF = 1 ;IYPRL = 10000
IPLTF = 1 ;IPLTL = 30 ;NPLT = 2
ISWPRF = 1 ;ISWPRL = 100000
ITABL = 2 ;IPROF = 1
ABSIZ =0.5 ;ORSIZ =0.4
NTZPRF = 1 ;NCOLPF = 50
ICHR = 2 ;NCOLCO = 45 ;NROWCO = 20
PATCH(IZEQNZ ,PROFIL, 1, 1, 1, 30, 20, 20, 1, 1)
PLOT(IZEQNZ ,W1 ,0. ,0. )
PLOT(IZEQNZ ,KE ,0. ,20. )
PLOT(IZEQNZ ,TEMP,0. ,0. )
PLOT(IZEQNZ ,LEN1,0. ,0.011 )
************************************************************
Group 24. Dumps For Restarts
SAVE = T ;NOWIPE = F
NSAVE =CHAM
IDISPA = 1 ;IDISPB = 1 ;IDISPC = 20
STOP