TALK=T;RUN(1,1)
DISPLAY
One computational cell is used in this study of the
variation of pressure as a piston moves from bottom
dead-centre, through top dead-centre, and back.
Interesting variations include: alteration of the engine
speed; and changes to the ratio of connecting-rod
length to crank radius.
ENDDIS
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************
TEXT(1D Piston-With-Bowl Study )
************************************************************
************************************************************
IRUNN = 1 ;LIBREF = 327
************************************************************
Group 2. Time dependence
STEADY = F
* Set overall time and no. of steps
TFIRST =0. ;TLAST =0.523598
FSTEP = 1 ;LSTEP = 20
TFRAC(1)=0.05 ;TFRAC(6)=0.3
TFRAC(11)=0.55 ;TFRAC(16)=0.8
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = T
NX = 1
XULAST =1.
XFRAC(1)=1.
************************************************************
Group 4. Y-Direction Grid Spacing
NY = 1
YVLAST =1.
YFRAC(1)=1.
************************************************************
Group 5. Z-Direction Grid Spacing
PARAB = F
NZ = 10
ZWLAST =0.2
ZFRAC(1)=0.1 ;ZFRAC(2)=0.2
ZFRAC(3)=0.3 ;ZFRAC(4)=0.4
ZFRAC(5)=0.5 ;ZFRAC(6)=0.6
ZFRAC(7)=0.7 ;ZFRAC(8)=0.8
ZFRAC(9)=0.9 ;ZFRAC(10)=1.
************************************************************
Group 6. Body-Fitted Coordinates
************************************************************
Group 7. Variables: STOREd,SOLVEd,NAMEd
ONEPHS = T
NAME(1)=P1 ;NAME(7)=W1
NAME(149)=HPOR ;NAME(150)=VPOR
* 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(W1,Y,Y,N,N,N,Y)
SOLUTN(HPOR,Y,N,N,N,N,Y)
SOLUTN(VPOR,Y,N,N,N,N,Y)
EPOR = 0 ;HPOR = 149 ;NPOR = 0 ;VPOR = 150
************************************************************
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(W1,Y,Y,Y,Y,Y,Y)
DIFCUT =0.5 ;ZDIFAC =1.
GALA = F ;ADDDIF = F
NEWRH1 = T
U1AD =0. ;V1AD =0. ;W1AD = ZMOVE
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 =1.0E+05
DVO1DT =0. ;DRH1DP = GRND3
RHO1A =1.484E-04 ;RHO1B =0.714286 ;RHO1C =0.
EMISS =0. ;SCATT =0.
RADIA =0. ;RADIB =0.
ENUL =1.0E-05 ;ENUT =0.
PRNDTL(W1)=1.
PRT(W1)=1.
CP1 =1. ;CP2 =1.
************************************************************
Group 10.Inter-Phase Transfer Processes
************************************************************
Group 11.Initial field variables (PHIs)
FIINIT(P1)=0. ;FIINIT(W1)=1.0E-10
FIINIT(HPOR)=1. ;FIINIT(VPOR)=1.
PATCH(BOWL1 ,INIVAL, 1, 1, 1, 1, 6, 10, 1, 1)
INIT(BOWL1 ,VPOR,0. ,-0.5 )
PATCH(BOWL2 ,INIVAL, 1, 1, 1, 1, 5, 10, 1, 1)
INIT(BOWL2 ,HPOR,0. ,-0.5 )
INIADD = T
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
No PATCHes yet used for this Group
XCYCLE = F
EGWF = T
WALLCO = GRND2
************************************************************
Group 14. Downstream Pressure For PARAB
************************************************************
Group 15. Terminate Sweeps
LSWEEP = 20 ;ISWC1 = 1
LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1
SELREF = T
RESFAC =1.0E-05
************************************************************
Group 16. Terminate Iterations
LITER(P1)=20 ;LITER(W1)=10
ENDIT(P1)=1.0E-03 ;ENDIT(W1)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(P1,LINRLX,1.)
RELAX(W1,FALSDT,1.0E-02)
OVRRLX =0.
EXPERT = F ;NNORSL = F
************************************************************
Group 18. Limits
VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-1.0E+10
VARMAX(W1)=1.0E+06 ;VARMIN(W1)=-1.0E+06
VARMAX(HPOR)=1.0E+10 ;VARMIN(HPOR)=-1.0E+10
VARMAX(VPOR)=1.0E+10 ;VARMIN(VPOR)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
PARSOL = F
IZW1 = 5
AZW1 =12. ;BZW1 =0.025
CZW1 =10. ;DZW1 =0.
ISG62 = 1
SPEDAT(SET,GXMONI,TRANSIENT,L,F)
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(W1,Y,N,Y,Y,Y,Y)
OUTPUT(HPOR,Y,N,Y,N,N,N)
OUTPUT(VPOR,Y,N,Y,N,N,N)
************************************************************
Group 22. Monitor Print-Out
IXMON = 1 ;IYMON = 1 ;IZMON = 1
NPRMON = 100000 ;NPRMNT = 1 ;TSTSWP = 5
UWATCH = T ;USTEER = T
HIGHLO = F
************************************************************
Group 23.Field Print-Out & Plot Control
NPRINT = 100000 ;NUMCLS = 5
NTPRIN = 5 ;ISTPRF = 1 ;ISTPRL = 100000
NZPRIN = -1 ;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(TIMEPLOT,PROFIL, 1, 1, 1, 1, 10, 10, 1, 20)
PLOT(TIMEPLOT,P1 ,0. ,0. )
PATCH(TIM10 ,PROFIL, 1, 1, 1, 1, 1, 10, 10, 10)
PLOT(TIM10 ,P1 ,0. ,0. )
PATCH(TIM20 ,PROFIL, 1, 1, 1, 1, 1, 10, 20, 20)
PLOT(TIM20 ,P1 ,0. ,0. )
************************************************************
Group 24. Dumps For Restarts
SAVE = T ;NOWIPE = F
NSAVE =CHAM
STOP