TALK=T;RUN(1,1)
  DISPLAY
  When a cartesian coordinate system rotates about an axis normal
  to is x-y plane, the x- and y-direction momentum equations have
  additional terms representing centrifugal and coriolis acceler-
  ations.
  In the present case, these terms are supplied by way of In-Form
  sources, appropriate to the clockwise rotation about an axis at
  x=0 and y=0.
  The boundary conditions correspond to rotation of the grid within
  a fluid which is wholly at rest, for which the exact solution is
  of course:
  for the velocities, solid-body rotation relative to the grid in
                      the anti-clockwise direction; and
  for the pressure, absence of pressure gradients.

  An interesting result is found, for which the reason is not
  perfectly clear: whether the grid is coarse (5*5) or fine
  (100*100), pressure gradients are in fact absent only when the
  nominal source terms are multiplied by a factor approximately
  equal to 1/3.

  Velocity and pressure fields for the 100*100 case may be seen by
  clicking
  here
  and
  here.
  The difference of pressure is 0.74 N/m**2 from bottom-left to
  top-right, which should be compared with approximately 100 N/m**2
  when the factor is zero and approximately -200 N/m**2 when the
  factor is unity.

  The reason for this requires to be investigated.
  ENDDIS
 ************************************************************
  Group 1. Run Title and Number
 ************************************************************
 ************************************************************
 
 TEXT(Rotating coordinates                    )
 
 ************************************************************
 ************************************************************
 
 IRUNN = 1 ;LIBREF = 0
 ************************************************************
  Group 2. Time dependence
 STEADY = T
 ************************************************************
  Group 3. X-Direction Grid Spacing
 CARTES = T
 NX = 100
 XULAST =1.
 XFRAC(1)=1.0E-02 ;XFRAC(2)=0.02
 XFRAC(3)=0.03 ;XFRAC(4)=0.04
 XFRAC(5)=0.05 ;XFRAC(6)=0.06
 XFRAC(7)=0.07 ;XFRAC(8)=0.08
 XFRAC(9)=0.09 ;XFRAC(10)=0.1
 XFRAC(11)=0.11 ;XFRAC(12)=0.12
 XFRAC(13)=0.13 ;XFRAC(14)=0.14
 XFRAC(15)=0.15 ;XFRAC(16)=0.16
 XFRAC(17)=0.17 ;XFRAC(18)=0.18
 XFRAC(19)=0.19 ;XFRAC(20)=0.2
 XFRAC(21)=0.21 ;XFRAC(22)=0.22
 XFRAC(23)=0.23 ;XFRAC(24)=0.24
 XFRAC(25)=0.25 ;XFRAC(26)=0.26
 XFRAC(27)=0.27 ;XFRAC(28)=0.28
 XFRAC(29)=0.29 ;XFRAC(30)=0.3
 XFRAC(31)=0.31 ;XFRAC(32)=0.32
 XFRAC(33)=0.33 ;XFRAC(34)=0.34
 XFRAC(35)=0.35 ;XFRAC(36)=0.36
 XFRAC(37)=0.37 ;XFRAC(38)=0.38
 XFRAC(39)=0.39 ;XFRAC(40)=0.4
 XFRAC(41)=0.41 ;XFRAC(42)=0.42
 XFRAC(43)=0.43 ;XFRAC(44)=0.44
 XFRAC(45)=0.45 ;XFRAC(46)=0.46
 XFRAC(47)=0.47 ;XFRAC(48)=0.48
 XFRAC(49)=0.49 ;XFRAC(50)=0.5
 XFRAC(51)=0.51 ;XFRAC(52)=0.52
 XFRAC(53)=0.53 ;XFRAC(54)=0.54
 XFRAC(55)=0.55 ;XFRAC(56)=0.56
 XFRAC(57)=0.57 ;XFRAC(58)=0.58
 XFRAC(59)=0.59 ;XFRAC(60)=0.6
 XFRAC(61)=0.61 ;XFRAC(62)=0.62
 XFRAC(63)=0.63 ;XFRAC(64)=0.64
 XFRAC(65)=0.65 ;XFRAC(66)=0.66
 XFRAC(67)=0.67 ;XFRAC(68)=0.68
 XFRAC(69)=0.69 ;XFRAC(70)=0.7
 XFRAC(71)=0.71 ;XFRAC(72)=0.72
 XFRAC(73)=0.73 ;XFRAC(74)=0.74
 XFRAC(75)=0.75 ;XFRAC(76)=0.76
 XFRAC(77)=0.77 ;XFRAC(78)=0.78
 XFRAC(79)=0.79 ;XFRAC(80)=0.8
 XFRAC(81)=0.81 ;XFRAC(82)=0.82
 XFRAC(83)=0.83 ;XFRAC(84)=0.84
 XFRAC(85)=0.85 ;XFRAC(86)=0.86
 XFRAC(87)=0.87 ;XFRAC(88)=0.88
 XFRAC(89)=0.89 ;XFRAC(90)=0.9
 XFRAC(91)=0.91 ;XFRAC(92)=0.92
 XFRAC(93)=0.93 ;XFRAC(94)=0.94
 XFRAC(95)=0.95 ;XFRAC(96)=0.96
 XFRAC(97)=0.97 ;XFRAC(98)=0.98
 XFRAC(99)=0.99 ;XFRAC(100)=1.
 ************************************************************
  Group 4. Y-Direction Grid Spacing
 NY = 100
 YVLAST =1.
 YFRAC(1)=1.0E-02 ;YFRAC(2)=0.02
 YFRAC(3)=0.03 ;YFRAC(4)=0.04
 YFRAC(5)=0.05 ;YFRAC(6)=0.06
 YFRAC(7)=0.07 ;YFRAC(8)=0.08
 YFRAC(9)=0.09 ;YFRAC(10)=0.1
 YFRAC(11)=0.11 ;YFRAC(12)=0.12
 YFRAC(13)=0.13 ;YFRAC(14)=0.14
 YFRAC(15)=0.15 ;YFRAC(16)=0.16
 YFRAC(17)=0.17 ;YFRAC(18)=0.18
 YFRAC(19)=0.19 ;YFRAC(20)=0.2
 YFRAC(21)=0.21 ;YFRAC(22)=0.22
 YFRAC(23)=0.23 ;YFRAC(24)=0.24
 YFRAC(25)=0.25 ;YFRAC(26)=0.26
 YFRAC(27)=0.27 ;YFRAC(28)=0.28
 YFRAC(29)=0.29 ;YFRAC(30)=0.3
 YFRAC(31)=0.31 ;YFRAC(32)=0.32
 YFRAC(33)=0.33 ;YFRAC(34)=0.34
 YFRAC(35)=0.35 ;YFRAC(36)=0.36
 YFRAC(37)=0.37 ;YFRAC(38)=0.38
 YFRAC(39)=0.39 ;YFRAC(40)=0.4
 YFRAC(41)=0.41 ;YFRAC(42)=0.42
 YFRAC(43)=0.43 ;YFRAC(44)=0.44
 YFRAC(45)=0.45 ;YFRAC(46)=0.46
 YFRAC(47)=0.47 ;YFRAC(48)=0.48
 YFRAC(49)=0.49 ;YFRAC(50)=0.5
 YFRAC(51)=0.51 ;YFRAC(52)=0.52
 YFRAC(53)=0.53 ;YFRAC(54)=0.54
 YFRAC(55)=0.55 ;YFRAC(56)=0.56
 YFRAC(57)=0.57 ;YFRAC(58)=0.58
 YFRAC(59)=0.59 ;YFRAC(60)=0.6
 YFRAC(61)=0.61 ;YFRAC(62)=0.62
 YFRAC(63)=0.63 ;YFRAC(64)=0.64
 YFRAC(65)=0.65 ;YFRAC(66)=0.66
 YFRAC(67)=0.67 ;YFRAC(68)=0.68
 YFRAC(69)=0.69 ;YFRAC(70)=0.7
 YFRAC(71)=0.71 ;YFRAC(72)=0.72
 YFRAC(73)=0.73 ;YFRAC(74)=0.74
 YFRAC(75)=0.75 ;YFRAC(76)=0.76
 YFRAC(77)=0.77 ;YFRAC(78)=0.78
 YFRAC(79)=0.79 ;YFRAC(80)=0.8
 YFRAC(81)=0.81 ;YFRAC(82)=0.82
 YFRAC(83)=0.83 ;YFRAC(84)=0.84
 YFRAC(85)=0.85 ;YFRAC(86)=0.86
 YFRAC(87)=0.87 ;YFRAC(88)=0.88
 YFRAC(89)=0.89 ;YFRAC(90)=0.9
 YFRAC(91)=0.91 ;YFRAC(92)=0.92
 YFRAC(93)=0.93 ;YFRAC(94)=0.94
 YFRAC(95)=0.95 ;YFRAC(96)=0.96
 YFRAC(97)=0.97 ;YFRAC(98)=0.98
 YFRAC(99)=0.99 ;YFRAC(100)=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)=VGRD
 NAME(150)=UGRD
    * 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(VGRD,Y,N,N,N,N,Y)
 SOLUTN(UGRD,Y,N,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)
 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 =0. ;ENUT =0.
 PRNDTL(U1)=1. ;PRNDTL(V1)=1.
 PRT(U1)=1. ;PRT(V1)=1.
 CP1 =1. ;CP2 =1.
 ************************************************************
  Group 10.Inter-Phase Transfer Processes
 ************************************************************
  Group 11.Initial field variables (PHIs)
 FIINIT(P1)=0. ;FIINIT(U1)=1.0E-10
 FIINIT(V1)=1.0E-10 ;FIINIT(VGRD)=1.0E-10
 FIINIT(UGRD)=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(WHOLE ,CELL , 1, 100, 1, 100, 1, 1, 1, 1)
 
 PATCH(NORTH ,CELL , 1, 100, 100, 100, 1, 1, 1, 1)
 COVAL(NORTH ,P1 , FIXVAL ,0. )
 
 PATCH(SOUTH ,CELL , 1, 100, 1, 1, 1, 1, 1, 1)
 COVAL(SOUTH ,P1 , FIXVAL ,0. )
 
 PATCH(EAST ,CELL , 100, 100, 1, 100, 1, 1, 1, 1)
 COVAL(EAST ,P1 , FIXVAL ,0. )
 
 PATCH(WEST ,CELL , 1, 1, 1, 100, 1, 1, 1, 1)
 COVAL(WEST ,P1 , FIXVAL ,0. )
 
 PATCH(MIDDLE ,CELL , 50, 50, 50, 50, 1, 1, 1, 1)
 COVAL(MIDDLE ,P1 , FIXVAL ,0. )
 
 PATCH(UNORTH ,VOLUME, 1, 99, 100, 100, 1, 1, 1, 1)
 COVAL(UNORTH ,U1 ,In-Form:source - see Grp 19)
 
 PATCH(USOUTH ,VOLUME, 1, 99, 1, 1, 1, 1, 1, 1)
 COVAL(USOUTH ,U1 ,In-Form:source - see Grp 19)
 
 PATCH(UEAST ,VOLUME, 99, 99, 1, 100, 1, 1, 1, 1)
 COVAL(UEAST ,U1 ,In-Form:source - see Grp 19)
 
 PATCH(UWEST ,VOLUME, 1, 1, 1, 100, 1, 1, 1, 1)
 COVAL(UWEST ,U1 ,In-Form:source - see Grp 19)
 
 PATCH(VNORTH ,VOLUME, 1, 100, 99, 99, 1, 1, 1, 1)
 COVAL(VNORTH ,V1 ,In-Form:source - see Grp 19)
 
 PATCH(VSOUTH ,VOLUME, 1, 100, 1, 1, 1, 1, 1, 1)
 COVAL(VSOUTH ,V1 ,In-Form:source - see Grp 19)
 
 PATCH(VEAST ,VOLUME, 100, 100, 1, 99, 1, 1, 1, 1)
 COVAL(VEAST ,V1 ,In-Form:source - see Grp 19)
 
 PATCH(VWEST ,VOLUME, 1, 1, 1, 99, 1, 1, 1, 1)
 COVAL(VWEST ,V1 ,In-Form:source - see Grp 19)
 
 PATCH(USOURCE ,VOLUME, 1, 99, 1, 100, 1, 1, 1, 1)
 COVAL(USOURCE ,U1 ,In-Form:source - see Grp 19)
 
 PATCH(VSOURCE ,VOLUME, 1, 100, 1, 99, 1, 1, 1, 1)
 COVAL(VSOURCE ,V1 ,In-Form:source - see Grp 19)
 XCYCLE = F
 EGWF = T
 WALLCO = GRND2
 ************************************************************
  Group 14. Downstream Pressure For PARAB
 ************************************************************
  Group 15. Terminate Sweeps
 LSWEEP = 1000 ;ISWC1 = 1
 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
 SELREF = T
 RESFAC =1.0E-03
 ************************************************************
  Group 16. Terminate Iterations
 LITER(P1)=20 ;LITER(U1)=10
 LITER(V1)=10
 ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03
 ENDIT(V1)=1.0E-03
 ************************************************************
  Group 17. Relaxation
 RELAX(P1,LINRLX,1.)
 RELAX(U1,FALSDT,0.1)
 RELAX(V1,FALSDT,0.1)
 RELAX(VGRD,LINRLX,1.)
 RELAX(UGRD,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(VGRD)=1.0E+10 ;VARMIN(VGRD)=-1.0E+10
 VARMAX(UGRD)=1.0E+10 ;VARMIN(UGRD)=-1.0E+10
 ************************************************************
  Group 19. Data transmitted to GROUND
 PARSOL = F
 ISG52 = 2
 ISG62 = 1
 SPEDAT(SET,INITIAL,UGRD,C,=10.*YG)
 SPEDAT(SET,INITIAL,VGRD,C,=-10.*XG)
 SPEDAT(SET,INITIAL,U1!WHOLE,C,=-10.*YG)
 SPEDAT(SET,INITIAL,V1!WHOLE,C,=10.*XG)
 SPEDAT(SET,SOURCE,U1!UNORTH,C,=COVAL(2.0E+10&-UGRD))
 SPEDAT(SET,SOURCE,U1!USOUTH,C,=COVAL(2.0E+10&-UGRD))
 SPEDAT(SET,SOURCE,U1!UEAST,C,=COVAL(2.0E+10&-UGRD))
 SPEDAT(SET,SOURCE,U1!UWEST,C,=COVAL(2.0E+10&-UGRD))
 SPEDAT(SET,SOURCE,V1!VNORTH,C,=COVAL(2.0E+10&-VGRD))
 SPEDAT(SET,SOURCE,V1!VSOUTH,C,=COVAL(2.0E+10&-VGRD))
 SPEDAT(SET,SOURCE,V1!VEAST,C,=COVAL(2.0E+10&-VGRD))
 SPEDAT(SET,SOURCE,V1!VWEST,C,=COVAL(2.0E+10&-VGRD))
 SPEDAT(SET,SOURCE,U1!USOURCE,C,=-0.333*10.*(10.*XU+2.0*V1))
 SPEDAT(SET,SOURCE,V1!VSOURCE,C,=-0.333*10.*(10.*YV-2.0*U1))
 ************************************************************
  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,Y,Y,Y)
 OUTPUT(U1,Y,Y,Y,N,Y,Y)
 OUTPUT(V1,Y,Y,Y,N,Y,Y)
 OUTPUT(VGRD,Y,N,Y,N,N,N)
 OUTPUT(UGRD,Y,N,Y,N,N,N)
 ************************************************************
  Group 22. Monitor Print-Out
 IXMON = 50 ;IYMON = 50 ;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