TALK=T;RUN(1,1) PHOTON USE p gr ou x 1 MSG Velocity vectors vec x 1 sh msg msg Press return to plot pressure contours pause cont p1 x 1 fil;.01 msg msg Type e to End ENDUSE PHOTON USE p gr ou x 1 MSG Velocity vectors vec x 1 sh msg msg Press return to plot pressure contours pause cont p1 x 1 fil;.01 msg msg Type e to End ENDUSE PHOTON USE p gr ou x 1 MSG Velocity vectors vec x 1 sh msg msg Press return to plot pressure contours pause cont p1 x 1 fil;.01 msg msg Type e to End ENDUSE PHOTON USE p gr ou x 1 MSG Velocity vectors vec x 1 sh msg msg Press return to plot pressure contours pause cont p1 x 1 fil;.01 msg msg Type e to End ENDUSE DISPLAY This case defines a calculation of the potential flow about a half cylinder in a duct in the y-z plane. The grid is generated by PIL commands giving a 'shear transformation' and is non-orthogonal; so NONORT is set T. The potential calculation is contrived by introducing a uniform high resistance throughout the flow field. This 'Darcy' flow is mathematically equivalent to potential flow. This is done in Group 13 by setting DARCY=T, which creates the appropriate PATCH and COVAL settings. An analytical solution exists for this case to which the results may be compared (see Milne-Thompson, 1962, 'Theoretical Hydrodynamics') ENDDIS DISPLAY This case differs from the previous one only in respect of the grid used. The grid is generated using the Laplace solver, which derives the grid by solving for the grid corner coordinates as dependent variables in a set of coupled non-linear equations. ENDDIS DISPLAY This case is similar to 514 except that the grid file now represents a half elliptic cylinder of aspect ratio 2:1 with its long axis in the z-direction. The grid is generated by interpolation with constant z-coordinates and is non-orthogonal ENDDIS DISPLAY Same as case 516 except that a nearly-orthogonal grid is used. ENDDIS ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(POT FLOW OVER ELLIPSE;MAGIC GRID: B517) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 516 ************************************************************ Group 2. Time dependence STEADY = T ************************************************************ Group 3. X-Direction Grid Spacing CARTES = T NX = 1 XULAST =1. ************************************************************ Group 4. Y-Direction Grid Spacing NY = 10 YVLAST =1. ************************************************************ Group 5. Z-Direction Grid Spacing PARAB = F NZ = 20 ZWLAST =2. ************************************************************ 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, 1, 1, 11, 1, 21) * 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) MSWP = 5 LIJ = F ;LJK = T ;LIK = F SLIDS = F ;SLIDN = T IMON = 1 ;JMON = 6 ;KMON = 11 ************************************************************ Group 7. Variables: STOREd,SOLVEd,NAMEd ONEPHS = T NAME(1)=P1 ;NAME(5)=V1 NAME(7)=W1 ;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(V1,Y,Y,N,N,N,N) SOLUTN(W1,Y,Y,N,N,N,N) SOLUTN(WCRT,Y,N,N,N,N,N) SOLUTN(VCRT,Y,N,N,N,N,N) SOLUTN(UCRT,Y,N,N,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(P1,Y,Y,Y,N,Y,Y) TERMS(V1,Y,N,N,N,Y,N) TERMS(W1,Y,N,N,N,Y,N) 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-10 ;ENUT =0. CP1 =1. ;CP2 =1. ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initial field variables (PHIs) FIINIT(P1)=1.0E-10 ;FIINIT(V1)=1.0E-10 FIINIT(W1)=1. ;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, 1, 1, 10, 1, 1, 1, 1) COVAL(INLET ,P1 , FIXFLU ,1. ) PATCH(OUTLET ,HIGH , 1, 1, 1, 10, 20, 20, 1, 1) COVAL(OUTLET ,P1 ,1. ,0. ) PATCH(DARCY ,PHASEM, 0, 0, 0, 0, 0, 0, 1, 1) COVAL(DARCY ,V1 ,1.0E+04 ,0. ) COVAL(DARCY ,W1 ,1.0E+04 ,0. ) XCYCLE = F EGWF = T WALLCO = GRND2 DARCY = T DARCON =1.0E+04 ************************************************************ 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-04 ************************************************************ Group 16. Terminate Iterations LITER(P1)=20 ;LITER(V1)=10 LITER(W1)=10 ENDIT(P1)=1.0E-03 ;ENDIT(V1)=1.0E-03 ENDIT(W1)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(P1,LINRLX,1.) RELAX(V1,FALSDT,1.) RELAX(W1,FALSDT,1.) RELAX(WCRT,LINRLX,1.) RELAX(VCRT,LINRLX,1.) RELAX(UCRT,LINRLX,1.) OVRRLX =0. EXPERT = F ;NNORSL = F ************************************************************ Group 18. Limits VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-1.0E+10 VARMAX(V1)=1.0E+06 ;VARMIN(V1)=-1.0E+06 VARMAX(W1)=1.0E+06 ;VARMIN(W1)=-1.0E+06 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 ************************************************************ 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,N,N,Y,Y,N,N) OUTPUT(V1,N,N,Y,Y,N,N) OUTPUT(W1,N,N,Y,Y,N,N) OUTPUT(WCRT,Y,N,Y,N,N,N) OUTPUT(VCRT,Y,N,Y,N,N,N) OUTPUT(UCRT,Y,N,Y,N,N,N) ************************************************************ Group 22. Monitor Print-Out IXMON = 1 ;IYMON = 3 ;IZMON = 10 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 = 5 ;IZPRL = 15 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(YZ ,CONTUR, 1, 1, 1, 10, 1, 20, 1, 1) PLOT(YZ ,P1 ,0. ,20. ) PLOT(YZ ,W1 ,0. ,20. ) PATCH(INNER ,PROFIL, 1, 1, 1, 1, 1, 20, 1, 1) PLOT(INNER ,P1 ,0. ,0. ) PLOT(INNER ,W1 ,0. ,0. ) ************************************************************ Group 24. Dumps For Restarts SAVE = T ;NOWIPE = F NSAVE =CHAM STOP