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TALK=T;RUN(1,1)
DISPLAY

It is supposed that a prolonged steady wind has created
a uniform gradient in the surface level of a lake.

When the wind suddenly ceases, the water level
returns to horizontality, after oscillating a number
of times which depends upon the lake-bed friction, but
which is also influenced by "numerical diffusion"
resulting from the limited number of time steps and
space intervals employed.

The pressure-dependent-porosity method is used.

Setting idispa = 2 dumps field data to parphi at
every second time step.

PHOTON USE commands facilitate viewing.

ENDDIS
PHOTON USE
p
parphi
1 1 0.8

up z
vi -y
gr ou y 1

con p1 y 1 fi;0.001
msg vertical dimension is time, horizontal is distance
msg contours of pressure
pause;con off;cl
con u1 y 1 fi;0.001
msg vertical dimension is time, horizontal is distance
msg contours of velocity
ENDUSE
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************

TEXT(Flow In Lake After Wind Stops           )

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

IRUNN = 1 ;LIBREF = 472
************************************************************
Group 2. Time dependence
* Set overall time and no. of steps
TFIRST =0. ;TLAST =1000.
FSTEP = 1 ;LSTEP = 100
TFRAC(1)=1.0E-02 ;TFRAC(21)=0.21
TFRAC(41)=0.41 ;TFRAC(61)=0.61
TFRAC(81)=0.81
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = T
NX = 50
XULAST =1500.
XFRAC(1)=0.02 ;XFRAC(11)=0.22
XFRAC(21)=0.42 ;XFRAC(31)=0.62
XFRAC(41)=0.82
************************************************************
Group 4. Y-Direction Grid Spacing
NY = 1
YVLAST =500.
YFRAC(1)=1.
************************************************************
Group 5. Z-Direction Grid Spacing
PARAB = F
NZ = 1
ZWLAST =16.
ZFRAC(1)=1.
************************************************************
Group 6. Body-Fitted Coordinates
************************************************************
Group 7. Variables: STOREd,SOLVEd,NAMEd
ONEPHS = T
NAME(1)=P1 ;NAME(3)=U1
NAME(149)=VPOR ;NAME(150)=EPOR
* 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(U1,Y,Y,N,N,N,Y)
SOLUTN(VPOR,Y,N,N,N,N,Y)
SOLUTN(EPOR,Y,N,N,N,N,Y)
EPOR = 150 ;HPOR = 0 ;NPOR = 0 ;VPOR = 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(P1,Y,Y,Y,N,Y,Y)
TERMS(U1,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 =1000. ;TMP1 =0.
EL1 =0.
TSURR =0. ;TEMP0 =0.
PRESS0 =0.
DVO1DT =0. ;DRH1DP =6.37105E-06
EMISS =0. ;SCATT =0.
ENUL =1.0E-05 ;ENUT =0.
PRNDTL(U1)=1.
PRT(U1)=1.
CP1 =1. ;CP2 =1.
************************************************************
Group 10.Inter-Phase Transfer Processes
************************************************************
Group 11.Initial field variables (PHIs)
FIINIT(P1)=0. ;FIINIT(U1)=0.
FIINIT(VPOR)=1. ;FIINIT(EPOR)=1.

PATCH(PINIT ,LINVLX, 1, 50, 1, 1, 1, 2, 1, 1)
INIT(PINIT ,P1 ,1. ,-750. )
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(LAKE-BED,LOW , 1, 50, 1, 1, 1, 1, 1, 1)
COVAL(LAKE-BED,U1 ,1.0E-03 ,0. )
XCYCLE = F
EGWF = T
WALLCO = GRND2
************************************************************
Group 14. Downstream Pressure For PARAB
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 5 ;ISWC1 = 1
LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
SELREF = T
RESFAC =1.0E-04
************************************************************
Group 16. Terminate Iterations
LITER(P1)=20 ;LITER(U1)=10
ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(P1,LINRLX,1.)
RELAX(U1,FALSDT,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(VPOR)=1.0E+10 ;VARMIN(VPOR)=-1.0E+10
VARMAX(EPOR)=1.0E+10 ;VARMIN(EPOR)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
PARSOL = F
IPORIA = 1
ISG62 = 1
PORIA =1. ;PORIB =6.37105E-06
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,N,N,N,N)
OUTPUT(U1,Y,N,N,N,N,N)
OUTPUT(VPOR,Y,N,N,N,N,N)
OUTPUT(EPOR,Y,N,N,N,N,N)
************************************************************
Group 22. Monitor Print-Out
IXMON = 25 ;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 = 20 ;ISTPRF = 1 ;ISTPRL = 100000
NXPRIN = 10 ;IXPRF = 1 ;IXPRL = 10000
IPLTF = 1 ;IPLTL = -1 ;NPLT = -1
ISWPRF = 1 ;ISWPRL = 100000
ITABL = 1 ;IPROF = 1
ABSIZ =0.5 ;ORSIZ =0.4
NTZPRF = 1 ;NCOLPF = 50
ICHR = 2 ;NCOLCO = 45 ;NROWCO = 20

PATCH(WAVE ,PROFIL, 1, 50, 1, 1, 1, 1, 1, 100)
PLOT(WAVE ,P1 ,0. ,0. )
PLOT(WAVE ,U1 ,0. ,0. )

PATCH(HALFWAY ,PROFIL, 25, 25, 1, 1, 1, 1, 1, 100)
PLOT(HALFWAY ,P1 ,0. ,0. )
PLOT(HALFWAY ,U1 ,0. ,0. )
************************************************************
Group 24. Dumps For Restarts
SAVE = T ;NOWIPE = F
NSAVE =CHAM
IDISPA = 2 ;IDISPB = 0 ;IDISPC = 0
STOP
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