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TALK=T;RUN(1,1)
PHOTON USE
p;;;;;

msg potential contours and velocity vectors
con pot x 1 fi;0.05;  con pot y 1 fi;0.05
set ref vec 40.0; vec x 1; vec y 1 ;pause
msg pressure contours
con p1 x 1 fi;0.05;  con p1 y 1 fi;0.05
msg Press e to END
ENDUSE
DISPLAY
This is a more economical version of the calculation performed
by the "darcy-flow" technique in case 275. Only the potential-
flow equation is solved. The imposed potential difference is
chosen so that the velocities are approximately the same as before
The Q1 contains PHOTON USE commands. Put use q1 in the u file in
order to activate them.
ENDDIS
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************

TEXT(Potential Flow Around A Moving Van      )

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

IRUNN = 1 ;LIBREF = 0
************************************************************
Group 2. Time dependence
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = T
NX = 8
XULAST =1.
XFRAC(1)=0.5 ;XFRAC(5)=2.8
************************************************************
Group 4. Y-Direction Grid Spacing
NY = 12
YVLAST =1.
Method of pairs used for grid setting.
YFRAC(1)=-6. ;YFRAC(2)=0.5
YFRAC(3)=5. ;YFRAC(4)=1.
YFRAC(5)=1. ;YFRAC(6)=2.
************************************************************
Group 5. Z-Direction Grid Spacing
PARAB = F
NZ = 20
ZWLAST =20.
ZFRAC(1)=0.05 ;ZFRAC(2)=0.1
ZFRAC(3)=0.15 ;ZFRAC(4)=0.2
ZFRAC(5)=0.25 ;ZFRAC(6)=0.3
ZFRAC(7)=0.35 ;ZFRAC(8)=0.4
ZFRAC(9)=0.45 ;ZFRAC(10)=0.5
ZFRAC(11)=0.55 ;ZFRAC(12)=0.6
ZFRAC(13)=0.65 ;ZFRAC(14)=0.7
ZFRAC(15)=0.75 ;ZFRAC(16)=0.8
ZFRAC(17)=0.85 ;ZFRAC(18)=0.9
ZFRAC(19)=0.95 ;ZFRAC(20)=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(148)=PRPS ;NAME(150)=POT
* 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,N,N,N,N,Y)
SOLUTN(U1,Y,N,N,N,N,Y)
SOLUTN(V1,Y,N,N,N,N,Y)
SOLUTN(W1,Y,N,N,N,N,Y)
SOLUTN(PRPS,Y,N,N,N,N,N)
SOLUTN(POT,Y,Y,Y,N,N,Y)
PRPS = 148
************************************************************
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(POT,N,N,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. ;TMP1 =0.
EL1 =0.
TSURR =0. ;TEMP0 =0.
PRESS0 =0.
DVO1DT =0. ;DRH1DP =0.
EMISS =0. ;SCATT =0.
ENUL =1.0E-05 ;ENUT =0.
PRNDTL(POT)=1.
PRT(POT)=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)=1.0E-10
FIINIT(PRPS)=-1. ;FIINIT(POT)=1.0E-10

PATCH(CMP0 ,INIVAL, 1, 3, 2, 3, 6, 10, 1, 1)
INIT(CMP0 ,PRPS,0. ,199. )

PATCH(CMP1 ,INIVAL, 1, 3, 4, 6, 7, 10, 1, 1)
INIT(CMP1 ,PRPS,0. ,199. )

PATCH(CMP2 ,INIVAL, 3, 3, 1, 1, 6, 6, 1, 1)
INIT(CMP2 ,PRPS,0. ,199. )

PATCH(CMP3 ,INIVAL, 3, 3, 1, 1, 10, 10, 1, 1)
INIT(CMP3 ,PRPS,0. ,199. )

PATCH(INITIAL ,LINVLZ, 1, 8, 1, 12, 1, 20, 1, 1)
INIT(INITIAL ,POT ,-14. ,280. )
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(UPSTRM ,LOW , 1, 8, 1, 12, 1, 1, 1, 1)
COVAL(UPSTRM ,POT , FIXVAL ,280. )

PATCH(DWNSTRM ,HIGH , 1, 8, 1, 12, 20, 20, 1, 1)
COVAL(DWNSTRM ,POT , FIXVAL ,0. )
XCYCLE = F
EGWF = T
WALLCO = GRND2
************************************************************
Group 14. Downstream Pressure For PARAB
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 3 ;ISWC1 = 1
LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
SELREF = T
RESFAC =1.0E-04
************************************************************
Group 16. Terminate Iterations
LITER(POT)=-100
ENDIT(POT)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(P1,LINRLX,1.)
RELAX(U1,LINRLX,1.)
RELAX(V1,LINRLX,1.)
RELAX(W1,LINRLX,1.)
RELAX(PRPS,LINRLX,1.)
RELAX(POT,FALSDT,1.0E+09)
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(PRPS)=1.0E+10 ;VARMIN(PRPS)=-1.0E+10
VARMAX(POT)=1.0E+10 ;VARMIN(POT)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
POTVEL = T
PARSOL = F
ISG62 = 1
SPEDAT(SET,MATERIAL,199,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(P1,Y,N,Y,N,N,N)
OUTPUT(U1,Y,N,N,N,N,N)
OUTPUT(V1,Y,N,N,N,N,N)
OUTPUT(W1,Y,N,N,N,N,N)
OUTPUT(PRPS,Y,N,Y,N,N,N)
OUTPUT(POT,Y,N,N,N,N,N)
************************************************************
Group 22. Monitor Print-Out
IXMON = 5 ;IYMON = 5 ;IZMON = 5
NPRMON = 100000 ;NPRMNT = 1 ;TSTSWP = 1
UWATCH = T ;USTEER = T
HIGHLO = F
************************************************************
Group 23.Field Print-Out & Plot Control
NPRINT = 100000 ;NUMCLS = 5
NXPRIN = 4 ;IXPRF = 1 ;IXPRL = 10000
NYPRIN = -1 ;IYPRF = 1 ;IYPRL = 10000
NZPRIN = -1 ;IZPRF = 4 ;IZPRL = 13
XZPR = F ;YZPR = T
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(PROFILE ,PROFIL, 7, 7, 6, 6, 1, 20, 1, 1)
PLOT(PROFILE ,U1 ,0. ,0. )
PLOT(PROFILE ,V1 ,0. ,0. )
PLOT(PROFILE ,W1 ,0. ,0. )
PLOT(PROFILE ,POT ,0. ,0. )

PATCH(XEQ1 ,CONTUR, 1, 1, 1, 12, 1, 20, 1, 1)
PLOT(XEQ1 ,U1 ,0. ,20. )
PLOT(XEQ1 ,V1 ,0. ,20. )
PLOT(XEQ1 ,W1 ,0. ,20. )
PLOT(XEQ1 ,POT ,0. ,20. )

PATCH(XEQ5 ,CONTUR, 1, 1, 1, 12, 1, 20, 1, 1)
PLOT(XEQ5 ,W1 ,0. ,20. )
PLOT(XEQ5 ,POT ,0. ,20. )

PATCH(WAKE ,CONTUR, 1, 8, 1, 12, 15, 15, 1, 1)
PLOT(WAKE ,W1 ,0. ,20. )
************************************************************
Group 24. Dumps For Restarts
SAVE = T ;NOWIPE = F
NSAVE =CHAM
STOP
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