TALK=T;RUN(1,1)
   PHOTON USE
   AUTOPLOT
   file
   phi 5

   cl
   msg LAMINAR PIPE FLOW WITH HEAT TRANSFER
   msg constant wall heat flux
   msg Reynolds number = 10 Prandtl number = 1.0
   msg Velocity (W1) profile
   msg Blue line --- PHOENICS solution
   msg crosses ---   analytical solution
   da 1 w1;da 1 w1a
   col3 1;blb4 2
   msg press  to continue
   pause
   cl

   msg constant wall heat flux
   msg Reynolds number = 10 Prandtl number = 1.0
   msg Temperature (H1) profile
   msg Blue line --- PHOENICS solution
   msg crosses ---   analytical solution
   da 1 h1;da 1 h1a
   col3 1;blb4 2
   msg press  to continue
   pause

   msg press  to end
   pause
   end
   END_USE
  DISPLAY


  DISPLAY
  The case considered is laminar flow and heat transfer
  of an incompressible, constant-property fluid in the
  hydrodynamically and thermally developed region of a
  of a circular tube. The heat transfer problem can be
  solved either with a constant wall heat flux ( QFCON=T )
  or a constant wall temperature ( QFCON=F ). The Prandtl
  number is set to 1.0, but it should be noted that the Nusselt
  number is a function only of the thermal boundary condition,
  as follows: Nu = 3.656 for a constant surface temperature
  and Nu = 4.364 for a constant heat flux QIN. For the latter
  case, an analytical solution exists for the radial
  temperature profile:

    T = Tw-GAM*(0.1875+0.0625*(R/RO)**4-0.25*(R/RO)**2)

  where RO is the tube radius and GAM=4.*QIN/(K*R0) wherein
  K is the thermal conductivity of the fluid.
  ENDDIS
 ************************************************************
  Group 1. Run Title and Number
 ************************************************************
 ************************************************************
 
 TEXT(1D Laminar Pipe Flow And Heat Trans     )
 
 ************************************************************
 ************************************************************
 
 IRUNN = 1 ;LIBREF = 14
 ************************************************************
  Group 2. Time dependence
 STEADY = T
 ************************************************************
  Group 3. X-Direction Grid Spacing
 CARTES = F
 NX = 1
 XULAST =1.
 XFRAC(1)=1.
 ************************************************************
  Group 4. Y-Direction Grid Spacing
 NY = 30
 YVLAST =0.1
 YFRAC(1)=0.033333 ;YFRAC(2)=0.066667
 YFRAC(3)=0.1 ;YFRAC(4)=0.133333
 YFRAC(5)=0.166667 ;YFRAC(6)=0.2
 YFRAC(7)=0.233333 ;YFRAC(8)=0.266667
 YFRAC(9)=0.3 ;YFRAC(10)=0.333333
 YFRAC(11)=0.366667 ;YFRAC(12)=0.4
 YFRAC(13)=0.433333 ;YFRAC(14)=0.466667
 YFRAC(15)=0.5 ;YFRAC(16)=0.533333
 YFRAC(17)=0.566667 ;YFRAC(18)=0.6
 YFRAC(19)=0.633333 ;YFRAC(20)=0.666667
 YFRAC(21)=0.7 ;YFRAC(22)=0.733333
 YFRAC(23)=0.766667 ;YFRAC(24)=0.8
 YFRAC(25)=0.833333 ;YFRAC(26)=0.866667
 YFRAC(27)=0.9 ;YFRAC(28)=0.933333
 YFRAC(29)=0.966667 ;YFRAC(30)=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(7)=W1 ;NAME(14)=H1
 NAME(149)=H1A ;NAME(150)=W1A
    * Y in SOLUTN argument list denotes:
    * 1-stored 2-solved 3-whole-field
    * 4-point-by-point 5-explicit 6-harmonic averaging 
 SOLUTN(W1,Y,Y,N,N,N,Y)
 SOLUTN(H1,Y,Y,N,N,N,Y)
 SOLUTN(H1A,Y,N,N,N,N,Y)
 SOLUTN(W1A,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(W1,N,N,Y,Y,Y,Y)
 TERMS(H1,N,N,Y,Y,Y,Y)
 DIFCUT =0.5 ;ZDIFAC =1.
 GALA = F ;ADDDIF = F
 USOURC = 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. ;TMP1 =0.
 EL1 =0.
 TSURR =0. ;TEMP0 =0.
 PRESS0 =0.
 DVO1DT =0. ;DRH1DP =0.
 EMISS =0. ;SCATT =0.
 RADIA =0. ;RADIB =0.
 ENUL =0.02 ;ENUT =0.
 PRNDTL(W1)=1. ;PRNDTL(H1)=1.
 PRT(W1)=1. ;PRT(H1)=1.
 CP1 =1. ;CP2 =1.
 ************************************************************
  Group 10.Inter-Phase Transfer Processes
 ************************************************************
  Group 11.Initial field variables (PHIs)
 FIINIT(W1)=1. ;FIINIT(H1)=8.
 FIINIT(H1A)=1.0E-10 ;FIINIT(W1A)=1.0E-10
 
 PATCH(IN1 ,INIVAL, 1, 1, 1, 1, 1, 1, 1, 1)
 INIT(IN1 ,H1A ,0. ,1.388788E-03 )
 INIT(IN1 ,W1A ,0. ,1.999444 )
 
 PATCH(IN2 ,INIVAL, 1, 1, 2, 2, 1, 1, 1, 1)
 INIT(IN2 ,H1A ,0. ,0.012492 )
 INIT(IN2 ,W1A ,0. ,1.995 )
 
 PATCH(IN3 ,INIVAL, 1, 1, 3, 3, 1, 1, 1, 1)
 INIT(IN3 ,H1A ,0. ,0.034662 )
 INIT(IN3 ,W1A ,0. ,1.986111 )
 
 PATCH(IN4 ,INIVAL, 1, 1, 4, 4, 1, 1, 1, 1)
 INIT(IN4 ,H1A ,0. ,0.067824 )
 INIT(IN4 ,W1A ,0. ,1.972778 )
 
 PATCH(IN5 ,INIVAL, 1, 1, 5, 5, 1, 1, 1, 1)
 INIT(IN5 ,H1A ,0. ,0.111867 )
 INIT(IN5 ,W1A ,0. ,1.955 )
 
 PATCH(IN6 ,INIVAL, 1, 1, 6, 6, 1, 1, 1, 1)
 INIT(IN6 ,H1A ,0. ,0.166644 )
 INIT(IN6 ,W1A ,0. ,1.932778 )
 
 PATCH(IN7 ,INIVAL, 1, 1, 7, 7, 1, 1, 1, 1)
 INIT(IN7 ,H1A ,0. ,0.231967 )
 INIT(IN7 ,W1A ,0. ,1.906111 )
 
 PATCH(IN8 ,INIVAL, 1, 1, 8, 8, 1, 1, 1, 1)
 INIT(IN8 ,H1A ,0. ,0.307617 )
 INIT(IN8 ,W1A ,0. ,1.875 )
 
 PATCH(IN9 ,INIVAL, 1, 1, 9, 9, 1, 1, 1, 1)
 INIT(IN9 ,H1A ,0. ,0.393333 )
 INIT(IN9 ,W1A ,0. ,1.839444 )
 
 PATCH(IN10 ,INIVAL, 1, 1, 10, 10, 1, 1, 1, 1)
 INIT(IN10 ,H1A ,0. ,0.48882 )
 INIT(IN10 ,W1A ,0. ,1.799444 )
 
 PATCH(IN11 ,INIVAL, 1, 1, 11, 11, 1, 1, 1, 1)
 INIT(IN11 ,H1A ,0. ,0.593742 )
 INIT(IN11 ,W1A ,0. ,1.755 )
 
 PATCH(IN12 ,INIVAL, 1, 1, 12, 12, 1, 1, 1, 1)
 INIT(IN12 ,H1A ,0. ,0.707731 )
 INIT(IN12 ,W1A ,0. ,1.706111 )
 
 PATCH(IN13 ,INIVAL, 1, 1, 13, 13, 1, 1, 1, 1)
 INIT(IN13 ,H1A ,0. ,0.83038 )
 INIT(IN13 ,W1A ,0. ,1.652778 )
 
 PATCH(IN14 ,INIVAL, 1, 1, 14, 14, 1, 1, 1, 1)
 INIT(IN14 ,H1A ,0. ,0.961242 )
 INIT(IN14 ,W1A ,0. ,1.595 )
 
 PATCH(IN15 ,INIVAL, 1, 1, 15, 15, 1, 1, 1, 1)
 INIT(IN15 ,H1A ,0. ,1.099838 )
 INIT(IN15 ,W1A ,0. ,1.532778 )
 
 PATCH(IN16 ,INIVAL, 1, 1, 16, 16, 1, 1, 1, 1)
 INIT(IN16 ,H1A ,0. ,1.245648 )
 INIT(IN16 ,W1A ,0. ,1.466111 )
 
 PATCH(IN17 ,INIVAL, 1, 1, 17, 17, 1, 1, 1, 1)
 INIT(IN17 ,H1A ,0. ,1.398117 )
 INIT(IN17 ,W1A ,0. ,1.395 )
 
 PATCH(IN18 ,INIVAL, 1, 1, 18, 18, 1, 1, 1, 1)
 INIT(IN18 ,H1A ,0. ,1.556653 )
 INIT(IN18 ,W1A ,0. ,1.319444 )
 
 PATCH(IN19 ,INIVAL, 1, 1, 19, 19, 1, 1, 1, 1)
 INIT(IN19 ,H1A ,0. ,1.720625 )
 INIT(IN19 ,W1A ,0. ,1.239444 )
 
 PATCH(IN20 ,INIVAL, 1, 1, 20, 20, 1, 1, 1, 1)
 INIT(IN20 ,H1A ,0. ,1.889367 )
 INIT(IN20 ,W1A ,0. ,1.155 )
 
 PATCH(IN21 ,INIVAL, 1, 1, 21, 21, 1, 1, 1, 1)
 INIT(IN21 ,H1A ,0. ,2.062176 )
 INIT(IN21 ,W1A ,0. ,1.066111 )
 
 PATCH(IN22 ,INIVAL, 1, 1, 22, 22, 1, 1, 1, 1)
 INIT(IN22 ,H1A ,0. ,2.23831 )
 INIT(IN22 ,W1A ,0. ,0.972778 )
 
 PATCH(IN23 ,INIVAL, 1, 1, 23, 23, 1, 1, 1, 1)
 INIT(IN23 ,H1A ,0. ,2.416992 )
 INIT(IN23 ,W1A ,0. ,0.875 )
 
 PATCH(IN24 ,INIVAL, 1, 1, 24, 24, 1, 1, 1, 1)
 INIT(IN24 ,H1A ,0. ,2.597408 )
 INIT(IN24 ,W1A ,0. ,0.772778 )
 
 PATCH(IN25 ,INIVAL, 1, 1, 25, 25, 1, 1, 1, 1)
 INIT(IN25 ,H1A ,0. ,2.778704 )
 INIT(IN25 ,W1A ,0. ,0.666111 )
 
 PATCH(IN26 ,INIVAL, 1, 1, 26, 26, 1, 1, 1, 1)
 INIT(IN26 ,H1A ,0. ,2.959992 )
 INIT(IN26 ,W1A ,0. ,0.555 )
 
 PATCH(IN27 ,INIVAL, 1, 1, 27, 27, 1, 1, 1, 1)
 INIT(IN27 ,H1A ,0. ,3.140347 )
 INIT(IN27 ,W1A ,0. ,0.439444 )
 
 PATCH(IN28 ,INIVAL, 1, 1, 28, 28, 1, 1, 1, 1)
 INIT(IN28 ,H1A ,0. ,3.318805 )
 INIT(IN28 ,W1A ,0. ,0.319445 )
 
 PATCH(IN29 ,INIVAL, 1, 1, 29, 29, 1, 1, 1, 1)
 INIT(IN29 ,H1A ,0. ,3.494367 )
 INIT(IN29 ,W1A ,0. ,0.195 )
 
 PATCH(IN30 ,INIVAL, 1, 1, 30, 30, 1, 1, 1, 1)
 INIT(IN30 ,H1A ,0. ,3.665995 )
 INIT(IN30 ,W1A ,0. ,0.066111 )
 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(WALL ,NWALL , 1, 1, 30, 30, 1, 1, 1, 1)
 COVAL(WALL ,W1 ,1. ,0. )
 COVAL(WALL ,H1 , FIXFLU ,1. )
 
 PATCH(FDFW1DP ,VOLUME, 1, 1, 1, 30, 1, 1, 1, 1)
 COVAL(FDFW1DP ,W1 ,5.0E-03 , GRND1 )
 
 PATCH(FDFCHF ,PHASEM, 1, 1, 1, 30, 1, 1, 1, 1)
 COVAL(FDFCHF ,H1 ,19.999998 , GRND1 )
 
 PATCH(TFIX ,CELL , 1, 1, 1, 1, 1, 1, 1, 1)
 COVAL(TFIX ,H1 ,1. ,0. )
 XCYCLE = F
 EGWF = T
 WALLCO = GRND2
 ************************************************************
  Group 14. Downstream Pressure For PARAB
 ************************************************************
  Group 15. Terminate Sweeps
 LSWEEP = 8 ;ISWC1 = 4
 LITHYD = 2 ;LITFLX = 1 ;LITC = 5 ;ITHC1 = 1
 SELREF = T
 RESFAC =1.0E-04
 ************************************************************
  Group 16. Terminate Iterations
 LITER(W1)=10 ;LITER(H1)=20
 ENDIT(W1)=1.0E-03 ;ENDIT(H1)=1.0E-03
 ************************************************************
  Group 17. Relaxation
 RELAX(W1,FALSDT,0.027778)
 RELAX(H1,FALSDT,1.0E+09)
 RELAX(H1A,LINRLX,1.)
 RELAX(W1A,LINRLX,1.)
 OVRRLX =0.
 EXPERT = F ;NNORSL = F
 ************************************************************
  Group 18. Limits
 VARMAX(W1)=1.0E+06 ;VARMIN(W1)=-1.0E+06
 VARMAX(H1)=1.0E+10 ;VARMIN(H1)=-1.0E+10
 VARMAX(H1A)=1.0E+10 ;VARMIN(H1A)=-1.0E+10
 VARMAX(W1A)=1.0E+10 ;VARMIN(W1A)=-1.0E+10
 ************************************************************
  Group 19. Data transmitted to GROUND
 FDFSOL = T
 PARSOL = F
 ISG62 = 1
 ************************************************************
  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(W1,Y,N,Y,Y,Y,Y)
 OUTPUT(H1,Y,N,Y,Y,Y,Y)
 OUTPUT(H1A,Y,N,Y,N,N,N)
 OUTPUT(W1A,Y,N,Y,N,N,N)
 ************************************************************
  Group 22. Monitor Print-Out
 IXMON = 1 ;IYMON = 30 ;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
 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