TALK=T;RUN(1,1)
DISPLAY
The case considered is the one-dimensional solution of fully-
developed turbulent flow in a circular pipe at a Reynolds number
of 1.E5. The turbulence is simulated by use of the Prandtl mixing
length model with Nikuradse's prescription of the mixing length.
The calculation integrates down to the wall by using van Driest's
viscous- damping extension to the mixing length. The solution is
performed by use of the single-slab solver with a prescribed
pressure drop. A non-uniform grid is employed so as to concentrate
cells very close to the wall. For this purpose a grid is generated
which is a geometric progression with the property that the ratio
of any two adjacent cell lengths is a constant. The calculations
yield a friction factor of f=0.018 which is in excellent agreement
with the experimental value.
ENDDIS
AUTOPLOT USE
file
phi 5
da 1 w1;col3 1
msg Velocity (W1) profile
msg Press RETURN to continue
pause
clear;da 1 enut
col3 1
msg Press e to END
ENDUSE
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************
TEXT(VAN DRIEST_1D DEVELOPED PIPE FLOW :T201)
************************************************************
************************************************************
IRUNN = 1 ;LIBREF = 14
************************************************************
Group 2. Time dependence
STEADY = T
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = F
NX = 1
XULAST =0.1
XFRAC(1)=1.
************************************************************
Group 4. Y-Direction Grid Spacing
NY = 58
YVLAST =0.05
YFRAC(1)=0.038842 ;YFRAC(5)=0.344854
YFRAC(9)=0.553864 ;YFRAC(13)=0.696621
YFRAC(17)=0.794126 ;YFRAC(21)=0.860723
YFRAC(25)=0.906209 ;YFRAC(29)=0.937277
YFRAC(33)=0.958497 ;YFRAC(37)=0.972991
YFRAC(41)=0.98289 ;YFRAC(45)=0.989651
YFRAC(49)=0.994269 ;YFRAC(53)=0.997424
YFRAC(57)=0.999578
************************************************************
Group 5. Z-Direction Grid Spacing
PARAB = F
NZ = 1
ZWLAST =1.0E-02
ZFRAC(1)=1.
************************************************************
Group 6. Body-Fitted Coordinates
************************************************************
Group 7. Variables: STOREd,SOLVEd,NAMEd
ONEPHS = T
NAME(7)=W1 ;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(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)
DIFCUT =0.5 ;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 = GRND8
TSURR =0. ;TEMP0 =0. ;PRESS0 =0.
DVO1DT =0. ;DRH1DP =0.
EMISS =0. ;SCATT =0.
RADIA =0. ;RADIB =0.
EL1A =7.0E-03 ;EL1B =-1.6 ;EL1C =-479.999969
ENUL =1.0E-06 ;ENUT = GRND2
ENUTA =0. ;ENUTB =0. ;ENUTC =0.
IENUTA = 5
PRNDTL(W1)=1.
PRT(W1)=1.
CP1 =1. ;CP2 =1.
************************************************************
Group 10.Inter-Phase Transfer Processes
************************************************************
Group 11.Initial field variables (PHIs)
FIINIT(W1)=1. ;FIINIT(LEN1)=1.0E-10
FIINIT(ENUT)=1.0E-10
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(WALLN ,NWALL , 1, 1, 58, 58, 1, 1, 1, 1)
COVAL(WALLN ,W1 , GRND2 ,0. )
PATCH(PFORW ,VOLUME, 1, 1, 1, 58, 1, 1, 1, 1)
COVAL(PFORW ,W1 , FIXFLU ,0.089845 )
XCYCLE = F
EGWF = T
WALLCO = GRND2
************************************************************
Group 14. Downstream Pressure For PARAB
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 40 ;ISWC1 = 1
LITHYD = 6 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
SELREF = T
RESFAC =1.0E-05
************************************************************
Group 16. Terminate Iterations
LITER(W1)=10
ENDIT(W1)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(W1,FALSDT,0.1)
RELAX(LEN1,LINRLX,1.)
RELAX(ENUT,LINRLX,1.)
OVRRLX =0.
EXPERT = F ;NNORSL = F
************************************************************
Group 18. Limits
VARMAX(W1)=1.0E+06 ;VARMIN(W1)=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
GENK = T
PARSOL = F
IENUTA = 5
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(LEN1,Y,N,Y,N,N,N)
OUTPUT(ENUT,Y,N,Y,N,N,N)
WALPRN = T
************************************************************
Group 22. Monitor Print-Out
IXMON = 1 ;IYMON = 56 ;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
NYPRIN = 4 ;IYPRF = 1 ;IYPRL = 10000
IPLTF = 1 ;IPLTL = -1 ;NPLT = 5
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
STOP