TALK=T;RUN(1,1)
DISPLAY
This case describes how the 'moving grid' method (see MOFOR
entry in Encyclopedia, POLIS) is applied to the simulation
of a moving sphere with a quadratic velocity
U(t)= t - t**2.0
or with varing accelaration
a = 1-2.0*t
The method is implemented by In-Form formulea written in
the Q1 file.
The above velocity is used to specify the mass flow and
velocity boundary conditions at INLET; and the above
accelation is used to provide the domain body forces to ensure
that the domain moves with the sphere.
This file contains a marco of commands which cause the
Viewer when the Macro button is pressed to display the
animation automatically.
ENDDIS
VRV USE
DOMAIN ON
* Setting object visibility and painting status
OBJECT SHOW TYPE BLOCKAGE
OBJECT PAINT TYPE BLOCKAGE OFF
OBJECT WIREFRAME TYPE BLOCKAGE OFF
OBJECT SHOW TYPE OUTLET
OBJECT PAINT TYPE OUTLET OFF
OBJECT WIREFRAME TYPE OUTLET OFF
VARIABLE Pressure; CON ON
VECTOR ON
ANIMATE 1 20 1
PAUSE
ENDUSE
************************************************************
Group 1. Run Title and Number
************************************************************
************************************************************
TEXT(Moving sphere with varing accelaration )
************************************************************
************************************************************
IRUNN = 1 ;LIBREF = 0
************************************************************
Group 2. Time dependence
STEADY = F
* Set overall time and no. of steps
TFIRST =0. ;TLAST =1.
FSTEP = 1 ;LSTEP = 20
TFRAC(1)=0.05 ;TFRAC(3)=0.15
TFRAC(5)=0.25 ;TFRAC(7)=0.35
TFRAC(9)=0.45 ;TFRAC(11)=0.55
TFRAC(13)=0.65 ;TFRAC(15)=0.75
TFRAC(17)=0.85 ;TFRAC(19)=0.95
************************************************************
Group 3. X-Direction Grid Spacing
CARTES = T
NX = 18
XULAST =4.
XFRAC(1)=0.05 ;XFRAC(2)=0.1
XFRAC(3)=0.15 ;XFRAC(4)=0.2
XFRAC(5)=0.25 ;XFRAC(6)=0.305556
XFRAC(7)=0.361111 ;XFRAC(8)=0.416667
XFRAC(9)=0.472222 ;XFRAC(10)=0.527778
XFRAC(11)=0.583333 ;XFRAC(12)=0.638889
XFRAC(13)=0.694444 ;XFRAC(14)=0.75
XFRAC(15)=0.8125 ;XFRAC(16)=0.875
XFRAC(17)=0.9375 ;XFRAC(18)=1.
************************************************************
Group 4. Y-Direction Grid Spacing
NY = 18
YVLAST =4.
YFRAC(1)=0.05 ;YFRAC(2)=0.1
YFRAC(3)=0.15 ;YFRAC(4)=0.2
YFRAC(5)=0.25 ;YFRAC(6)=0.305556
YFRAC(7)=0.361111 ;YFRAC(8)=0.416667
YFRAC(9)=0.472222 ;YFRAC(10)=0.527778
YFRAC(11)=0.583333 ;YFRAC(12)=0.638889
YFRAC(13)=0.694444 ;YFRAC(14)=0.75
YFRAC(15)=0.8125 ;YFRAC(16)=0.875
YFRAC(17)=0.9375 ;YFRAC(18)=1.
************************************************************
Group 5. Z-Direction Grid Spacing
PARAB = F
NZ = 31
ZWLAST =10.
ZFRAC(1)=0.028571 ;ZFRAC(2)=0.057143
ZFRAC(3)=0.085714 ;ZFRAC(4)=0.114286
ZFRAC(5)=0.142857 ;ZFRAC(6)=0.171429
ZFRAC(7)=0.2 ;ZFRAC(8)=0.233333
ZFRAC(9)=0.266667 ;ZFRAC(10)=0.3
ZFRAC(11)=0.333333 ;ZFRAC(12)=0.366667
ZFRAC(13)=0.4 ;ZFRAC(14)=0.433333
ZFRAC(15)=0.466667 ;ZFRAC(16)=0.5
ZFRAC(17)=0.533333 ;ZFRAC(18)=0.566667
ZFRAC(19)=0.6 ;ZFRAC(20)=0.633333
ZFRAC(21)=0.666667 ;ZFRAC(22)=0.7
ZFRAC(23)=0.733333 ;ZFRAC(24)=0.766667
ZFRAC(25)=0.8 ;ZFRAC(26)=0.833333
ZFRAC(27)=0.866667 ;ZFRAC(28)=0.9
ZFRAC(29)=0.933333 ;ZFRAC(30)=0.966667
ZFRAC(31)=1.
************************************************************
Group 6. Body-Fitted Coordinates
************************************************************
Group 7. Variables: STOREd,SOLVEd,NAMEd
ONEPHS = T
NAME(1)=P1 ;NAME(3)=U1
NAME(5)=V1 ;NAME(7)=W1
NAME(149)=VLSQ ;NAME(150)=PRPS
* 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,Y)
SOLUTN(U1,Y,Y,N,N,N,Y)
SOLUTN(V1,Y,Y,Y,N,N,Y)
SOLUTN(W1,Y,Y,Y,N,N,Y)
SOLUTN(VLSQ,Y,N,N,N,N,Y)
SOLUTN(PRPS,Y,N,N,N,N,Y)
PRPS = 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(U1,Y,Y,Y,Y,Y,Y)
TERMS(V1,Y,Y,Y,Y,Y,Y)
TERMS(W1,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 =1.0E-05 ;ENUT =0.
PRNDTL(U1)=1. ;PRNDTL(V1)=1.
PRNDTL(W1)=1.
PRT(U1)=1. ;PRT(V1)=1.
PRT(W1)=1.
CP1 =1005. ;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(W1)=1.0E-10
FIINIT(VLSQ)=1.0E-10 ;FIINIT(PRPS)=-1.
PATCH(^OB2 ,INIVAL, 2, 0, 0, 0, 0, 0, 1, 1)
INIT(^OB2 ,PRPS,0. ,198. )
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(IN ,LOW , 1, 18, 1, 18, 1, 1, 1, 20)
COVAL(IN ,P1 ,In-Form:source - see Grp 19)
COVAL(IN ,W1 ,In-Form:source - see Grp 19)
PATCH(ACEL ,PHASEM, 1, 18, 1, 18, 1, 31, 1, 20)
COVAL(ACEL ,W1 ,In-Form:source - see Grp 19)
PATCH(OB1 ,HIGH , 1, 18, 1, 18, 31, 31, 1, 20)
COVAL(OB1 ,P1 ,1000. ,0. )
COVAL(OB1 ,U1 ,0. ,0. )
COVAL(OB1 ,V1 ,0. ,0. )
COVAL(OB1 ,W1 ,0. ,0. )
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-03
************************************************************
Group 16. Terminate Iterations
LITER(P1)=250 ;LITER(U1)=10
LITER(V1)=10 ;LITER(W1)=10
ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03
ENDIT(V1)=1.0E-03 ;ENDIT(W1)=1.0E-03
************************************************************
Group 17. Relaxation
RELAX(P1,LINRLX,1.)
RELAX(U1,FALSDT,1.)
RELAX(V1,FALSDT,1.)
RELAX(W1,FALSDT,1.)
RELAX(VLSQ,LINRLX,1.)
RELAX(PRPS,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(W1)=1.0E+06 ;VARMIN(W1)=-1.0E+06
VARMAX(VLSQ)=1.0E+10 ;VARMIN(VLSQ)=-1.0E+10
VARMAX(PRPS)=1.0E+10 ;VARMIN(PRPS)=-1.0E+10
************************************************************
Group 19. Data transmitted to GROUND
NAMSAT =MOSG
PARSOL = F
CALFOR = T
ISG62 = 1
SPEDAT(SET,GXMONI,TRANSIENT,L,F)
SPEDAT(SET,SOURCE,R1!IN,C,=(TIM-TIM^2.0)*RHO1)
SPEDAT(SET,SOURCE,W1!IN,C,=(TIM-TIM^2.0)!ONLYMS)
SPEDAT(SET,SOURCE,W1!ACEL,C,=1.-2*(TIM-0.5*DT))
SPEDAT(SET,GXMONI,PLOTALL,L,T)
SPEDAT(SET,DRAG,MOMCENX,R,0.)
SPEDAT(SET,DRAG,MOMCENY,R,0.)
SPEDAT(SET,DRAG,MOMCENZ,R,0.)
SPEDAT(SET,OBJNAM,!OB1,C,B2)
SPEDAT(SET,OBJTYP,!OB1,C,OUTLET)
SPEDAT(SET,ARATIO,!OB1,R,1.)
SPEDAT(SET,OBJNAM,^OB2,C,B3)
SPEDAT(SET,OBJTYP,^OB2,C,BLOCKAGE)
SPEDAT(SET,B3,MATERIAL,R,198.)
SPEDAT(SET,FACETDAT,NUMOBJ,I,2)
SPEDAT(SET,MATERIAL,198,L,T)
RG( 1) =2.
************************************************************
Group 20. Preliminary Printout
DISTIL = T ;NULLPR = F
NDST = 0
DSTTOL =1.0E-02
EX(P1)=0. ;EX(U1)=2.633E-04
EX(V1)=2.633E-04 ;EX(W1)=4.72E-04
EX(VLSQ)=0. ;EX(PRPS)=0.
************************************************************
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(W1,Y,N,Y,Y,Y,Y)
OUTPUT(VLSQ,N,N,Y,N,N,N)
OUTPUT(PRPS,N,N,Y,N,N,N)
************************************************************
Group 22. Monitor Print-Out
IXMON = 10 ;IYMON = 10 ;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
NTPRIN = 2 ;ISTPRF = 1 ;ISTPRL = 100000
NXPRIN = -1 ;IXPRF = 1 ;IXPRL = 10000
NYPRIN = -1 ;IYPRF = 1 ;IYPRL = 10000
NZPRIN = -1 ;IZPRF = 1 ;IZPRL = 10000
XZPR = F ;YZPR = T
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
IDISPA = 1 ;IDISPB = 1 ;IDISPC = 100
CSG1 ='M'
STOP