TALK=T;RUN(1,1) PHOTON USE p;;;;;; msg streamlines and potential contours for flow around an oval msg body of revolution gr ou x 1 msg streamlines stre 2d x 1 sh;-1 0 200 msg constant-potential contours con pot x 1 sh;-.99 .99 40 red msg Press e to END ENDUSE DISPLAY ****************************************************************** * Axi-symmetrical potential flow around a spaced source-sink * * pair, within a uniform-potential-gradient field, is known to * * generate a field in which a closed streamline has an oval * * shape. * * * * This is illustrated in the present case. * * * * A PHOTON USE file is provided to facilitate display. * * * ****************************************************************** ENDDIS ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(Potl. 2D Flow; Source-Sink Pair ) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 0 ************************************************************ Group 2. Time dependence STEADY = T ************************************************************ Group 3. X-Direction Grid Spacing CARTES = F NX = 1 XULAST =1.0E-02 XFRAC(1)=1. ************************************************************ Group 4. Y-Direction Grid Spacing NY = 20 YVLAST =1. YFRAC(1)=0.05 ;YFRAC(2)=0.1 YFRAC(3)=0.15 ;YFRAC(4)=0.2 YFRAC(5)=0.25 ;YFRAC(6)=0.3 YFRAC(7)=0.35 ;YFRAC(8)=0.4 YFRAC(9)=0.45 ;YFRAC(10)=0.5 YFRAC(11)=0.55 ;YFRAC(12)=0.6 YFRAC(13)=0.65 ;YFRAC(14)=0.7 YFRAC(15)=0.75 ;YFRAC(16)=0.8 YFRAC(17)=0.85 ;YFRAC(18)=0.9 YFRAC(19)=0.95 ;YFRAC(20)=1. ************************************************************ Group 5. Z-Direction Grid Spacing PARAB = F NZ = 40 ZWLAST =2. ZFRAC(1)=0.025 ;ZFRAC(2)=0.05 ZFRAC(3)=0.075 ;ZFRAC(4)=0.1 ZFRAC(5)=0.125 ;ZFRAC(6)=0.15 ZFRAC(7)=0.175 ;ZFRAC(8)=0.2 ZFRAC(9)=0.225 ;ZFRAC(10)=0.25 ZFRAC(11)=0.275 ;ZFRAC(12)=0.3 ZFRAC(13)=0.325 ;ZFRAC(14)=0.35 ZFRAC(15)=0.375 ;ZFRAC(16)=0.4 ZFRAC(17)=0.425 ;ZFRAC(18)=0.45 ZFRAC(19)=0.475 ;ZFRAC(20)=0.5 ZFRAC(21)=0.525 ;ZFRAC(22)=0.55 ZFRAC(23)=0.575 ;ZFRAC(24)=0.6 ZFRAC(25)=0.625 ;ZFRAC(26)=0.65 ZFRAC(27)=0.675 ;ZFRAC(28)=0.7 ZFRAC(29)=0.725 ;ZFRAC(30)=0.75 ZFRAC(31)=0.775 ;ZFRAC(32)=0.8 ZFRAC(33)=0.825 ;ZFRAC(34)=0.85 ZFRAC(35)=0.875 ;ZFRAC(36)=0.9 ZFRAC(37)=0.925 ;ZFRAC(38)=0.95 ZFRAC(39)=0.975 ;ZFRAC(40)=1. ************************************************************ Group 6. Body-Fitted Coordinates ************************************************************ Group 7. Variables: STOREd,SOLVEd,NAMEd ONEPHS = T NAME(3)=U1 ;NAME(5)=V1 NAME(7)=W1 ;NAME(150)=POT * Y in SOLUTN argument list denotes: * 1-stored 2-solved 3-whole-field * 4-point-by-point 5-explicit 6-harmonic averaging SOLUTN(U1,Y,N,N,N,N,Y) SOLUTN(V1,Y,N,N,N,N,Y) SOLUTN(W1,Y,N,N,N,N,Y) SOLUTN(POT,Y,Y,Y,N,N,N) ************************************************************ 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(POT,N,N,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(POT)=1. PRT(POT)=1. CP1 =1. ;CP2 =1. ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initial field variables (PHIs) FIINIT(U1)=1.0E-10 ;FIINIT(V1)=1.0E-10 FIINIT(W1)=1.0E-10 ;FIINIT(POT)=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(UPSTRM ,LOW , 1, 1, 1, 20, 1, 1, 1, 1) COVAL(UPSTRM ,POT , FIXVAL ,1. ) PATCH(DWNSTRM ,HIGH , 1, 1, 1, 20, 40, 40, 1, 1) COVAL(DWNSTRM ,POT , FIXVAL ,-1. ) PATCH(SOURCE1 ,CELL , 1, 1, 1, 1, 10, 10, 1, 1) COVAL(SOURCE1 ,POT , FIXFLU ,1.0E-03 ) PATCH(SINK1 ,CELL , 1, 1, 1, 1, 31, 31, 1, 1) COVAL(SINK1 ,POT , FIXFLU ,-1.0E-03 ) XCYCLE = F EGWF = T WALLCO = GRND2 ************************************************************ Group 14. Downstream Pressure For PARAB ************************************************************ Group 15. Terminate Sweeps LSWEEP = 3 ;ISWC1 = 1 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1 SELREF = T RESFAC =1.0E-02 ************************************************************ Group 16. Terminate Iterations LITER(POT)=-100 ENDIT(POT)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(U1,LINRLX,1.) RELAX(V1,LINRLX,1.) RELAX(W1,LINRLX,1.) RELAX(POT,FALSDT,1.0E+09) OVRRLX =0. EXPERT = F ;NNORSL = F ************************************************************ Group 18. Limits 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(POT)=1.0E+10 ;VARMIN(POT)=-1.0E+10 ************************************************************ Group 19. Data transmitted to GROUND POTVEL = T PARSOL = F ISG62 = 1 CSG3 ='CNGR' 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(U1,N,N,N,N,N,N) OUTPUT(V1,Y,N,N,N,N,N) OUTPUT(W1,Y,N,N,N,N,N) OUTPUT(POT,Y,N,N,N,N,N) ************************************************************ Group 22. Monitor Print-Out IXMON = 5 ;IYMON = 5 ;IZMON = 5 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 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 STOP