TALK=T;RUN(1,1) PHOTON USE p phi 1 1 1 msg Potential flow over a double-wedge airfoil msg set ref vec 10 msg velocity vectors: gr ou x 1;vec x 1 sh msg msg Pressto continue pause vec off;red msg Axial velocity contours: con w1 x 1 fi;.01 msg msg Press to continue pause con off;red msg Contours of velocity potential: con pot x 1 fi;.01 msg msg Press e to END enduse DISPLAY An inviscid fluid flows steadily past a double-wedge airfoil. The problem is solved in the same manner as in case 115. The velocity components are computed by activation (through POTVEL) of a sequence in GREX3. The geometry of the problem is sketched below. frictionless wall ____________________________________________________ -----------> ----> ----> _-_ ----> __|***|__ ----> ^ __|*********|__ y| __|***************|__ | ________________|*********************|______________ frictionless wall z----> ENDDIS ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(Comp Flow Over Double-Wedge Airfoil ) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 116 ************************************************************ Group 2. Time dependence STEADY = T ************************************************************ Group 3. X-Direction Grid Spacing CARTES = T NX = 1 XULAST =1. 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 =8. 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(5)=V1 ;NAME(7)=W1 NAME(146)=PRPS ;NAME(147)=NPOR NAME(149)=HPOR ;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(V1,Y,N,N,N,N,Y) SOLUTN(W1,Y,N,N,N,N,Y) SOLUTN(PRPS,Y,N,N,N,N,N) SOLUTN(NPOR,Y,N,N,N,N,Y) SOLUTN(HPOR,Y,N,N,N,N,Y) SOLUTN(POT,Y,Y,N,N,N,Y) EPOR = 0 ;HPOR = 149 ;NPOR = 147 ;VPOR = 0 PRPS = 146 ************************************************************ 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,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(POT)=1. PRT(POT)=1. CP1 =1. ;CP2 =1. ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initial field variables (PHIs) FIINIT(V1)=1.0E-10 ;FIINIT(W1)=1.0E-10 FIINIT(PRPS)=-1. ;FIINIT(NPOR)=1. FIINIT(HPOR)=1. ;FIINIT(POT)=1.0E-10 PATCH(HPOR1 ,INIVAL, 1, 1, 1, 1, 12, 28, 1, 1) INIT(HPOR1 ,PRPS,0. ,199. ) INIT(HPOR1 ,NPOR,0. ,0. ) INIT(HPOR1 ,HPOR,0. ,0. ) PATCH(HPOR2 ,INIVAL, 1, 1, 2, 2, 14, 26, 1, 1) INIT(HPOR2 ,PRPS,0. ,199. ) INIT(HPOR2 ,NPOR,0. ,0. ) INIT(HPOR2 ,HPOR,0. ,0. ) PATCH(HPOR3 ,INIVAL, 1, 1, 3, 3, 16, 24, 1, 1) INIT(HPOR3 ,PRPS,0. ,199. ) INIT(HPOR3 ,NPOR,0. ,0. ) INIT(HPOR3 ,HPOR,0. ,0. ) PATCH(HPOR4 ,INIVAL, 1, 1, 4, 4, 18, 22, 1, 1) INIT(HPOR4 ,PRPS,0. ,199. ) INIT(HPOR4 ,NPOR,0. ,0. ) INIT(HPOR4 ,HPOR,0. ,0. ) PATCH(HPOR5 ,INIVAL, 1, 1, 5, 5, 20, 20, 1, 1) INIT(HPOR5 ,PRPS,0. ,199. ) INIT(HPOR5 ,NPOR,0. ,0. ) INIT(HPOR5 ,HPOR,0. ,0. ) 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 ,4. ) PATCH(DWNSTRM ,HIGH , 1, 1, 1, 20, 40, 40, 1, 1) COVAL(DWNSTRM ,POT , FIXVAL ,-4. ) XCYCLE = F EGWF = T WALLCO = GRND2 ************************************************************ Group 14. Downstream Pressure For PARAB ************************************************************ Group 15. Terminate Sweeps LSWEEP = 200 ;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(V1,LINRLX,1.) RELAX(W1,LINRLX,1.) RELAX(PRPS,LINRLX,1.) RELAX(POT,FALSDT,1.0E+09) OVRRLX =1.4 EXPERT = F ;NNORSL = F ************************************************************ Group 18. Limits VARMAX(V1)=1.0E+06 ;VARMIN(V1)=-1.0E+06 VARMAX(W1)=1.0E+06 ;VARMIN(W1)=-1.0E+06 VARMAX(PRPS)=1.0E+10 ;VARMIN(PRPS)=-1.0E+10 VARMAX(NPOR)=1.0E+10 ;VARMIN(NPOR)=-1.0E+10 VARMAX(HPOR)=1.0E+10 ;VARMIN(HPOR)=-1.0E+10 VARMAX(POT)=1.0E+10 ;VARMIN(POT)=-1.0E+10 ************************************************************ Group 19. Data transmitted to GROUND POTCMP = T POTVEL = T PARSOL = F ISG62 = 1 PORIA =0.010417 ;PORIB =2.5 SPEDAT(SET,GXMONI,PLOTALL,L,T) SPEDAT(SET,MATERIAL,199,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(V1,Y,N,N,N,Y,N) OUTPUT(W1,Y,N,N,N,Y,N) OUTPUT(PRPS,Y,N,Y,N,N,N) OUTPUT(NPOR,Y,N,Y,N,N,N) OUTPUT(HPOR,Y,N,N,N,Y,N) OUTPUT(POT,Y,Y,Y,Y,Y,N) ************************************************************ Group 22. Monitor Print-Out IXMON = 1 ;IYMON = 10 ;IZMON = 20 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 = 10 NZPRIN = 1 ;IZPRF = 18 ;IZPRL = 22 XZPR = F ;YZPR = F IPLTF = 2 ;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(CONT ,CONTUR, 1, 1, 1, 20, 1, 40, 1, 1) PLOT(CONT ,V1 ,0. ,10. ) PLOT(CONT ,W1 ,0. ,10. ) PLOT(CONT ,POT ,0. ,40. ) ************************************************************ Group 24. Dumps For Restarts SAVE = T ;NOWIPE = F NSAVE =CHAM STOP