TALK=T;RUN(1,1)
PHOTON USE
p
gr ou y 1
MSG Velocity vectors
vec y 1 sh
msg
msg Press return to plot pressure contours
pause
cont p1 y 1 fil;.01
msg
msg Type e to End
ENDUSE
DISPLAY
This case concerns plane, transonic, isentropic flow
through a convergent-divergent nozzle operating under
design conditions. The calculation is made using the
BFC system, and the nozzle geometry corresponds to a
linear Mach-number distribution, as predicted by one-
dimensional gas-dynamic theory. The geometry is
sketched out in the following diagram.
/////// //////
*******/// ///// **
* /// /// *
* // wall ////// * ---> zero
---> * //////// * pressure
* *
---> ---------> --->
---> ---------> --->
^ ************************************************
x| ////////////////////////////////////////////////
|---> wall
z
The inlet conditions are prescribed total pressure and
total temperature at a Mach Number of 0.5. The design
outlet Mach number is 2.0 for which Pex/Po,in = .1278.
The exit boundary condition corresponds to a fixed pressure
at the expected nodal Mach number.
A system of units is chosen whereby the flow variables
can be interpreted as: P/Po,in ; RHO/RHOo,in ; T/To,in ;
and U*SQRT(GAMMA)/Ao. Here, Ao is the acoustic velocity
at the stagnation temperature.
ENDDIS
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************
TEXT(TRANSONIC FLOW THRU A NOZZLE: B522 )
************************************************************
************************************************************
IRUNN = 1 ;LIBREF = 14
************************************************************
Group 2. Time dependence
STEADY = T
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = T
NX = 5
XULAST =0.335
************************************************************
Group 4. Y-Direction Grid Spacing
NY = 1
YVLAST =1.
************************************************************
Group 5. Z-Direction Grid Spacing
PARAB = F
NZ = 17
ZWLAST =3.4
************************************************************
Group 6. Body-Fitted Coordinates
BFC = T ;NONORT = T
NCRT = 1
RSTGEO = F ;SAVGEO = F
UUP = F ;VUP = F ;WUP = F
NGEOM =CHAM
NAMXYZ =CHAM
ANGMIN =20.
DOMAIN( 1, 6, 1, 2, 1, 18)
* Set fixed sub-domain
FIXDOM( 1, 0, 0, 0, 0, 0, 0)
FIXDOM( 2, 0, 0, 0, 0, 0, 0)
FIXDOM( 3, 0, 0, 0, 0, 0, 0)
FIXDOM( 4, 0, 0, 0, 0, 0, 0)
FIXDOM( 5, 0, 0, 0, 0, 0, 0)
FIXDOM( 6, 0, 0, 0, 0, 0, 0)
FIXDOM( 7, 0, 0, 0, 0, 0, 0)
FIXDOM( 8, 0, 0, 0, 0, 0, 0)
FIXDOM( 9, 0, 0, 0, 0, 0, 0)
FIXDOM( 10, 0, 0, 0, 0, 0, 0)
LIJ = F ;LJK = T ;LIK = F
************************************************************
Group 7. Variables: STOREd,SOLVEd,NAMEd
ONEPHS = T
NAME(1)=P1 ;NAME(3)=U1
NAME(7)=W1 ;NAME(147)=RHO1
NAME(148)=WCRT ;NAME(149)=VCRT
NAME(150)=UCRT
* 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,Y,N,N,N)
SOLUTN(U1,Y,Y,N,N,N,Y)
SOLUTN(W1,Y,Y,N,N,N,Y)
SOLUTN(RHO1,Y,N,N,N,N,Y)
SOLUTN(WCRT,Y,N,N,N,N,N)
SOLUTN(VCRT,Y,N,N,N,N,N)
SOLUTN(UCRT,Y,N,N,N,N,N)
DEN1 = 147
************************************************************
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,N,N,Y,N)
TERMS(W1,Y,Y,N,N,Y,N)
DIFCUT =0.5 ;ZDIFAC =1.
GALA = F ;ADDDIF = F
NEWRH1 = 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 = GRND3 ;TMP1 =0. ;EL1 =0.
TSURR =0. ;TEMP0 =0. ;PRESS0 =0.
DVO1DT =0. ;DRH1DP = GRND3
RHO1A =1. ;RHO1B =0.714286 ;RHO1C =0.
EMISS =0. ;SCATT =0.
RADIA =0. ;RADIB =0.
ENUL =1.0E-05 ;ENUT =0.
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(W1)=1.170592 ;FIINIT(RHO1)=0.557609
FIINIT(WCRT)=1.0E-10 ;FIINIT(VCRT)=1.0E-10
FIINIT(UCRT)=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(INLET ,LOW , 1, 5, 1, 1, 1, 1, 1, 1)
COVAL(INLET ,P1 ,12.124356 ,0.88517 )
COVAL(INLET ,W1 ,0. ,0.57735 )
PATCH(OUTLET ,HIGH , 1, 5, 1, 1, 17, 17, 1, 1)
COVAL(OUTLET ,P1 ,1.0E+05 ,0.127805 )
COVAL(OUTLET ,U1 ,0. ,0. )
COVAL(OUTLET ,W1 ,0. ,0. )
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-02
************************************************************
Group 16. Terminate Iterations
LITER(P1)=15 ;LITER(U1)=10
LITER(W1)=10
ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03
ENDIT(W1)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(P1,LINRLX,0.5)
RELAX(U1,FALSDT,0.34641)
RELAX(W1,FALSDT,0.34641)
RELAX(RHO1,LINRLX,1.)
RELAX(WCRT,LINRLX,1.)
RELAX(VCRT,LINRLX,1.)
RELAX(UCRT,LINRLX,1.)
OVRRLX =1.7
EXPERT = F ;NNORSL = F
************************************************************
Group 18. Limits
VARMAX(P1)=1. ;VARMIN(P1)=8.430193E-03
VARMAX(U1)=50. ;VARMIN(U1)=-50.
VARMAX(W1)=50. ;VARMIN(W1)=-50.
VARMAX(RHO1)=1. ;VARMIN(RHO1)=0.088517
VARMAX(WCRT)=1.0E+10 ;VARMIN(WCRT)=-1.0E+10
VARMAX(VCRT)=1.0E+10 ;VARMIN(VCRT)=-1.0E+10
VARMAX(UCRT)=1.0E+10 ;VARMIN(UCRT)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
PARSOL = F
ISG62 = 1
SPEDAT(SET,GXMONI,PLOTALL,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,Y,Y,Y)
OUTPUT(U1,Y,N,Y,Y,Y,Y)
OUTPUT(W1,Y,N,Y,Y,Y,Y)
OUTPUT(RHO1,Y,N,N,N,Y,Y)
OUTPUT(WCRT,Y,N,N,N,N,N)
OUTPUT(VCRT,Y,N,Y,N,N,N)
OUTPUT(UCRT,Y,N,N,N,N,N)
************************************************************
Group 22. Monitor Print-Out
IXMON = 2 ;IYMON = 1 ;IZMON = 15
NPRMON = 100000 ;NPRMNT = 1 ;TSTSWP = -1
UWATCH = T ;USTEER = T
HIGHLO = F
************************************************************
Group 23.Field Print-Out & Plot Control
NPRINT = 50 ;NUMCLS = 5
NXPRIN = -1 ;IXPRF = 1 ;IXPRL = 10000
NZPRIN = 2 ;IZPRF = 1 ;IZPRL = 10000
XZPR = F ;YZPR = F
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(XZ ,CONTUR, 1, 5, 1, 1, 1, 17, 1, 1)
PLOT(XZ ,P1 ,0. ,20. )
PLOT(XZ ,W1 ,0. ,20. )
PATCH(CENTRE ,PROFIL, 1, 1, 1, 1, 1, 17, 1, 1)
PLOT(CENTRE ,P1 ,0. ,0. )
PLOT(CENTRE ,W1 ,0. ,0. )
************************************************************
Group 24. Dumps For Restarts
SAVE = T ;NOWIPE = F
NSAVE =CHAM
STOP