TALK=T;RUN(1,1)
PHOTON USE
P
vi 1 0 0;gr ou x 1
vec x 1 sh
msg Velocity distribution at the center plane
msg Press Enter to continue
pause
vec off;gr off;vi 0 0 1;gr ou z 1
set vec ref 0.3
vec z 4 sh
msg Velocity distribution upwind of canopy
msg Press Enter to continue
pause
vec off
red
vec z 6 sh
msg Velocity distribution in canopy cross-section
msg Press Enter to continue
pause
vec off
red
vec z 8 sh
msg Velocity distribution in canopy cross-section
msg Press Enter to continue
pause
vec off
red
vec z 11 sh
msg Velocity distribution downwind of canopy
msg Press Enter to continue
pause
vec off
red
vec z 12 sh
msg Velocity distribution downwind of canopy
msg Press Enter to continue
pause
vec off
red
vec z 13 sh
msg Velocity distribution downwind of canopy
msg Press Enter to continue
pause
vec off
red
vec z 14 sh
msg Velocity distribution downwind of canopy
msg Press Enter to continue
pause
vec off
red
vec z 15 sh
msg Velocity distribution downwind of canopy
msg Press Enter to continue
ENDUSE
DISPLAY
This run analyses the three dimensional secondary flow pattern
generated by a canopy. The Prandtl mixing length model in
conjunction with the power-law velocity profile in a stable
athmosfere are used to evalute the turbulent viscosity
distribution. The latter, the non-uniform velocity inlet profile
and plant airflow interaction are introduced through PLANT
generated GROUND codings. Interesting variants include the
comparison with the K-E model simulations presented by U.
Svensson and K. Haeggkvist in J. of Wind Engineering and
Industrial Aerodynamics, 35, 1990, pp. 201-211
ENDDIS
PLANTBEGIN
* Mixing-length theory: ENUT=L**2*dW1/dY
VIST=1.6/7.*YG2D**1.142/100.**0.142
** Inlet velocity of 1/7 law
PATCH(INLET,LOW,1,NX,1,NY,1,1,1,1)
VAL=1.22*10.*(YG2D/100.)**0.142
COVAL(INLET,P1,FIXFLU,GRND)
VAL=10.*(YG2D/100.)**0.142
COVAL(INLET,W1,ONLYMS,GRND)
** Plant airflow interactions
* form drag Cd=0.3, a=0.5
PATCH(DRAG,PHASEM,1,5,1,5,6,10,1,1)
CO=0.075*(V1*V1+W1*W1+U1*U1)**0.5
COVAL(DRAG,U1,GRND,0.0)
CO=0.075*(V1*V1+W1*W1+U1*U1)**0.5
COVAL(DRAG,V1,GRND,0.0)
CO=0.075*(V1*V1+W1*W1+U1*U1)**0.5
COVAL(DRAG,W1,GRND,0.0)
PLANTEND
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************
TEXT(CANOPY-GENERATED SECONDARY FLOW:137 )
************************************************************
************************************************************
IRUNN = 1 ;LIBREF = 137
************************************************************
Group 2. Time dependence
STEADY = T
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = T
NX = 10
XULAST =400.
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 = 10
YVLAST =90.
YFRAC(1)=0.022222 ;YFRAC(2)=0.044444
YFRAC(3)=0.066667 ;YFRAC(4)=0.088889
YFRAC(5)=0.111111 ;YFRAC(6)=0.146667
YFRAC(7)=0.253333 ;YFRAC(8)=0.431111
YFRAC(9)=0.68 ;YFRAC(10)=1.
************************************************************
Group 5. Z-Direction Grid Spacing
PARAB = F
NZ = 15
ZWLAST =450.
ZFRAC(1)=0.066667 ;ZFRAC(2)=0.133333
ZFRAC(3)=0.2 ;ZFRAC(4)=0.266667
ZFRAC(5)=0.333333 ;ZFRAC(6)=0.4
ZFRAC(7)=0.466667 ;ZFRAC(8)=0.533333
ZFRAC(9)=0.6 ;ZFRAC(10)=0.666667
ZFRAC(11)=0.733333 ;ZFRAC(12)=0.8
ZFRAC(13)=0.866667 ;ZFRAC(14)=0.933333
ZFRAC(15)=1.
************************************************************
Group 6. Body-Fitted Coordinates
************************************************************
Group 7. Variables: STOREd,SOLVEd,NAMEd
ONEPHS = T
NAME(1)=P1 ;NAME(3)=U1
NAME(5)=V1 ;NAME(7)=W1
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(P1,Y,Y,Y,N,N,N)
SOLUTN(U1,Y,Y,N,N,N,Y)
SOLUTN(V1,Y,Y,N,N,N,Y)
SOLUTN(W1,Y,Y,N,N,N,Y)
SOLUTN(ENUT,Y,N,N,N,N,Y)
VIST = 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(U1,Y,Y,Y,Y,Y,Y)
TERMS(V1,Y,Y,Y,Y,Y,Y)
TERMS(W1,Y,Y,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 =1.22 ;TMP1 =0. ;EL1 =0.
TSURR =0. ;TEMP0 =0. ;PRESS0 =0.
DVO1DT =0. ;DRH1DP =0.
EMISS =0. ;SCATT =0.
RADIA =0. ;RADIB =0.
ENUL =1.465E-05 ;ENUT = GRND
ENUTA =0. ;ENUTB =0. ;ENUTC =0.
IENUTA = 0
PRNDTL(U1)=1. ;PRNDTL(V1)=1.
PRNDTL(W1)=1.
PRT(U1)=1. ;PRT(V1)=1.
PRT(W1)=1.
CP1 =1. ;CP2 =1.
************************************************************
Group 10.Inter-Phase Transfer Processes
************************************************************
Group 11.Initial field variables (PHIs)
FIINIT(P1)=1.0E-10 ;FIINIT(U1)=1.0E-10
FIINIT(V1)=1.0E-10 ;FIINIT(W1)=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(SHOWINL ,LOW , 1, 10, 1, 10, 1, 1, 1, 1)
PATCH(GROUND ,SWALL , 1, 10, 1, 1, 1, 15, 1, 1)
COVAL(GROUND ,U1 , GRND2 ,0. )
COVAL(GROUND ,W1 , GRND2 ,0. )
PATCH(OUT ,HIGH , 1, 10, 1, 10, 15, 15, 1, 1)
COVAL(OUT ,P1 ,1. ,0. )
PATCH(EAST ,EAST , 10, 10, 1, 10, 1, 15, 1, 1)
COVAL(EAST ,P1 ,1. ,0. )
PATCH(NORTH ,NORTH , 1, 10, 10, 10, 1, 15, 1, 1)
COVAL(NORTH ,P1 ,1. ,0. )
PATCH(INLET ,LOW , 1, 10, 1, 10, 1, 1, 1, 1)
COVAL(INLET ,P1 , FIXFLU , GRND )
COVAL(INLET ,W1 ,0. , GRND )
PATCH(DRAG ,PHASEM, 1, 5, 1, 5, 6, 10, 1, 1)
COVAL(DRAG ,U1 , GRND ,0. )
COVAL(DRAG ,V1 , GRND ,0. )
COVAL(DRAG ,W1 , GRND ,0. )
XCYCLE = F
EGWF = T
WALLCO = GRND2
************************************************************
Group 14. Downstream Pressure For PARAB
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 50 ;ISWC1 = 1
LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
SELREF = T
RESFAC =1.0E-05
************************************************************
Group 16. Terminate Iterations
LITER(P1)=20 ;LITER(U1)=10
LITER(V1)=10 ;LITER(W1)=10
ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03
ENDIT(V1)=1.0E-03 ;ENDIT(W1)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(P1,LINRLX,0.4)
RELAX(U1,FALSDT,100.)
RELAX(V1,FALSDT,100.)
RELAX(W1,FALSDT,100.)
RELAX(ENUT,LINRLX,1.)
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(V1)=1.0E+06 ;VARMIN(V1)=-1.0E+06
VARMAX(W1)=1.0E+06 ;VARMIN(W1)=-1.0E+06
VARMAX(ENUT)=1.0E+10 ;VARMIN(ENUT)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
NAMSAT =MOSG
PARSOL = F
ISG62 = 1
SPEDAT(SET,GXMONI,PLOTALL,L,T)
************************************************************
Group 20. Preliminary Printout
DISTIL = T ;NULLPR = F
NDST = 0
DSTTOL =1.0E-02
EX(P1)=1.828 ;EX(U1)=0.09327
EX(V1)=0.1054 ;EX(W1)=6.445
EX(ENUT)=4.194
************************************************************
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(U1,Y,N,Y,Y,Y,Y)
OUTPUT(V1,Y,N,Y,Y,Y,Y)
OUTPUT(W1,Y,N,Y,Y,Y,Y)
OUTPUT(ENUT,Y,N,Y,N,N,N)
************************************************************
Group 22. Monitor Print-Out
IXMON = 5 ;IYMON = 6 ;IZMON = 7
NPRMON = 100000 ;NPRMNT = 1 ;TSTSWP = -1
UWATCH = T ;USTEER = T
HIGHLO = F
************************************************************
Group 23.Field Print-Out & Plot Control
NPRINT = 100000 ;NUMCLS = 5
NXPRIN = -1 ;IXPRF = 1 ;IXPRL = 10000
NYPRIN = -1 ;IYPRF = 1 ;IYPRL = 10000
NZPRIN = -1 ;IZPRF = 1 ;IZPRL = 10000
XZPR = F ;YZPR = F
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
No PATCHes yet used for this Group
************************************************************
Group 24. Dumps For Restarts
SAVE = T ;NOWIPE = F
NSAVE =CHAM
STOP