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



  msg         Staggered velocities vectors
  set vec ref 0.3
  gr ou z 1;vec z 1 sh
  msg Press  to continue
  pause
  vec off;red
  set vec comp UC1 VC1 -
  msg        Co-located velocities vectors
  vec z 1 sh
  msg Press e to END
  ENDUSE
  DISPLAY
  This run analyses  the flow in a cavity,  the top  wall of  which
  moves  with a constant velocity.  The grid is  uniform  and  flow
  Reynolds  number  equals 100.  The UC1 and  VC1 scalar  variables
  have  zero-slip boundary  conditions  and PLANT  is  used  to set
  pressure gradient sources. So, these variables have the  meanings
  of  co-located cartesian velocities  which are transported in the
  convection  field  formed by  staggered  components.  CCV  option
  of PHOENICS  can be  directly  used  for  further  details  and
  comparisons.  The  example  can also  be treated as the technique
  for physically based interpolation of staggered velocities in the
  grid nodes.
  ENDDIS
  PLANTBEGIN
  ** Pressure gradient sources
PATCH(DPDX1,CELL,2,NX-1,1,NY,1,1,1,1)
   VAL=AEAST*(WEST(P1)-EAST(P1))/2.
COVAL(DPDX1,UC1,FIXFLU,GRND)
PATCH(DPDX2,CELL,NX,NX,1,NY,1,1,1,1)
   VAL=AEAST*(WEST(P1)-P1)
COVAL(DPDX2,UC1,FIXFLU,GRND)
PATCH(DPDX3,CELL,1,1,1,NY,1,1,1,1)
   VAL=AEAST*(P1-EAST(P1))
COVAL(DPDX3,UC1,FIXFLU,GRND)

PATCH(DPDY1,CELL,1,NX,2,NY-1,1,1,1,1)
   VAL=ANORTH*(SOUTH(P1)-NORTH(P1))/2.
COVAL(DPDY1,VC1,FIXFLU,GRND)
PATCH(DPDY2,CELL,1,NX,NY,NY,1,1,1,1)
   VAL=ANORTH*(SOUTH(P1)-P1)
COVAL(DPDY2,VC1,FIXFLU,GRND)
PATCH(DPDY3,CELL,1,NX,1,1,1,1,1,1)
   VAL=ANORTH*(P1-NORTH(P1))
COVAL(DPDY3,VC1,FIXFLU,GRND)
  PLANTEND
 ************************************************************
  Group 1. Run Title and Number
 ************************************************************
 ************************************************************
 
 TEXT( CO-LOCATED VELOCITY CALCULATION:145    )
 
 ************************************************************
 ************************************************************
 
 IRUNN = 1 ;LIBREF = 145
 ************************************************************
  Group 2. Time dependence
 STEADY = T
 ************************************************************
  Group 3. X-Direction Grid Spacing
 CARTES = T
 NX = 10
 XULAST =0.1
 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 =0.1
 YFRAC(1)=0.1 ;YFRAC(2)=0.2
 YFRAC(3)=0.3 ;YFRAC(4)=0.4
 YFRAC(5)=0.5 ;YFRAC(6)=0.6
 YFRAC(7)=0.7 ;YFRAC(8)=0.8
 YFRAC(9)=0.9 ;YFRAC(10)=1.
 ************************************************************
  Group 5. Z-Direction Grid Spacing
 PARAB = F
 NZ = 1
 ZWLAST =1.
 ZFRAC(1)=1.
 ************************************************************
  Group 6. Body-Fitted Coordinates
 ************************************************************
  Group 7. Variables: STOREd,SOLVEd,NAMEd
 ONEPHS = T
 NAME(1)=P1 ;NAME(3)=U1
 NAME(5)=V1 ;NAME(149)=VC1
 NAME(150)=UC1
    * 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(V1,Y,Y,N,N,N,Y)
 SOLUTN(VC1,Y,Y,N,N,N,Y)
 SOLUTN(UC1,Y,Y,N,N,N,Y)
 ************************************************************
  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(VC1,N,Y,Y,Y,N,Y)
 TERMS(UC1,N,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 =1. ;TMP1 =0.
 EL1 =0.
 TSURR =0. ;TEMP0 =0.
 PRESS0 =0.
 DVO1DT =0. ;DRH1DP =0.
 EMISS =0. ;SCATT =0.
 RADIA =0. ;RADIB =0.
 ENUL =1.0E-03 ;ENUT =0.
 PRNDTL(U1)=1. ;PRNDTL(V1)=1.
 PRNDTL(VC1)=1. ;PRNDTL(UC1)=1.
 PRT(U1)=1. ;PRT(V1)=1.
 PRT(VC1)=1. ;PRT(UC1)=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(VC1)=1.0E-10
 FIINIT(UC1)=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(SOUTH ,SWALL , 1, 10, 1, 1, 1, 1, 1, 1)
 COVAL(SOUTH ,U1 ,1. ,0. )
 COVAL(SOUTH ,UC1 ,1. ,0. )
 
 PATCH(MOVING ,NWALL , 1, 10, 10, 10, 1, 1, 1, 1)
 COVAL(MOVING ,U1 ,1. ,1. )
 COVAL(MOVING ,UC1 ,1. ,1. )
 
 PATCH(WEST ,WWALL , 1, 1, 1, 10, 1, 1, 1, 1)
 COVAL(WEST ,V1 ,1. ,0. )
 COVAL(WEST ,VC1 ,1. ,0. )
 
 PATCH(EAST ,EWALL , 10, 10, 1, 10, 1, 1, 1, 1)
 COVAL(EAST ,V1 ,1. ,0. )
 COVAL(EAST ,VC1 ,1. ,0. )
 
 PATCH(RELIEF ,CELL , 5, 5, 5, 5, 1, 1, 1, 1)
 COVAL(RELIEF ,P1 ,1. ,0. )
 
 PATCH(DPDX1 ,CELL , 2, 9, 1, 10, 1, 1, 1, 1)
 COVAL(DPDX1 ,UC1 , FIXFLU , GRND )
 
 PATCH(DPDX2 ,CELL , 10, 10, 1, 10, 1, 1, 1, 1)
 COVAL(DPDX2 ,UC1 , FIXFLU , GRND )
 
 PATCH(DPDX3 ,CELL , 1, 1, 1, 10, 1, 1, 1, 1)
 COVAL(DPDX3 ,UC1 , FIXFLU , GRND )
 
 PATCH(DPDY1 ,CELL , 1, 10, 2, 9, 1, 1, 1, 1)
 COVAL(DPDY1 ,VC1 , FIXFLU , GRND )
 
 PATCH(DPDY2 ,CELL , 1, 10, 10, 10, 1, 1, 1, 1)
 COVAL(DPDY2 ,VC1 , FIXFLU , GRND )
 
 PATCH(DPDY3 ,CELL , 1, 10, 1, 1, 1, 1, 1, 1)
 COVAL(DPDY3 ,VC1 , FIXFLU , GRND )
 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-04
 ************************************************************
  Group 16. Terminate Iterations
 LITER(P1)=20 ;LITER(U1)=10
 LITER(V1)=10 ;LITER(VC1)=20
 LITER(UC1)=20
 ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03
 ENDIT(V1)=1.0E-03 ;ENDIT(VC1)=1.0E-03
 ENDIT(UC1)=1.0E-03
 ************************************************************
  Group 17. Relaxation
 RELAX(P1,LINRLX,1.)
 RELAX(U1,FALSDT,1.)
 RELAX(V1,FALSDT,1.)
 RELAX(VC1,FALSDT,1.)
 RELAX(UC1,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(V1)=1.0E+06 ;VARMIN(V1)=-1.0E+06
 VARMAX(VC1)=1.0E+10 ;VARMIN(VC1)=-1.0E+10
 VARMAX(UC1)=1.0E+10 ;VARMIN(UC1)=-1.0E+10
 ************************************************************
  Group 19. Data transmitted to GROUND
 NAMSAT =MOSG
 PARSOL = F
 ISG62 = 1
 ************************************************************
  Group 20. Preliminary Printout
 DISTIL = T ;NULLPR = F
 NDST = 0
 DSTTOL =1.0E-02
 EX(P1)=0.02713 ;EX(U1)=0.1279
 EX(V1)=0.1062 ;EX(VC1)=0.09647
 EX(UC1)=0.1176
 ************************************************************
  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(VC1,Y,N,Y,Y,Y,Y)
 OUTPUT(UC1,Y,N,Y,Y,Y,Y)
 ************************************************************
  Group 22. Monitor Print-Out
 IXMON = 5 ;IYMON = 9 ;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
 NXPRIN = -1 ;IXPRF = 1 ;IXPRL = 10000
 NYPRIN = -1 ;IYPRF = 1 ;IYPRL = 10000
 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