TALK=T;RUN(1,1) PHOTON USE p parphi 1 1 6 up z vi -y gr ou y 1 con u1 y 1 fi;0.001 msg velocity contours msg vertical dimension is time, horizontal is distance pause;cls msg pressure contours con p1 y 1 fi;0.001 ENDUSE DISPLAY The pressure-dependent-porosity method is used to compute the transient distributions of velocity and pressure in a one- dimensional channel flow. Initially the water velocity is 0,8 meters per second everywhere; but shutting the exit causes a wave to flow back to the inlet. Since inflow continues unchecked, a further wave travels in the opposite direction; and so on. The behaviour can be displayed via PHOTON, because idispa has been set to 1, dictating that information is placed on the parp$ hi file after every second time step. ENDDIS DISPLAY This is similar to case 471; but the flow is interrupted at both ends, not just one ENDDIS ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(Waves After Shutting Inlet And Outlet ) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 470 ************************************************************ Group 2. Time dependence STEADY = F * Set overall time and no. of steps TFIRST =0. ;TLAST =500. FSTEP = 1 ;LSTEP = 100 TFRAC(1)=1.0E-02 ;TFRAC(6)=0.06 TFRAC(11)=0.11 ;TFRAC(16)=0.16 TFRAC(21)=0.21 ;TFRAC(26)=0.26 TFRAC(31)=0.31 ;TFRAC(36)=0.36 TFRAC(41)=0.41 ;TFRAC(46)=0.46 TFRAC(51)=0.51 ;TFRAC(56)=0.56 TFRAC(61)=0.61 ;TFRAC(66)=0.66 TFRAC(71)=0.71 ;TFRAC(76)=0.76 TFRAC(81)=0.81 ;TFRAC(86)=0.86 TFRAC(91)=0.91 ;TFRAC(96)=0.96 ************************************************************ Group 3. X-Direction Grid Spacing CARTES = T NX = 50 XULAST =1500. XFRAC(1)=0.02 ;XFRAC(2)=0.04 XFRAC(3)=0.06 ;XFRAC(4)=0.08 XFRAC(5)=0.1 ;XFRAC(6)=0.12 XFRAC(7)=0.14 ;XFRAC(8)=0.16 XFRAC(9)=0.18 ;XFRAC(10)=0.2 XFRAC(11)=0.22 ;XFRAC(12)=0.24 XFRAC(13)=0.26 ;XFRAC(14)=0.28 XFRAC(15)=0.3 ;XFRAC(16)=0.32 XFRAC(17)=0.34 ;XFRAC(18)=0.36 XFRAC(19)=0.38 ;XFRAC(20)=0.4 XFRAC(21)=0.42 ;XFRAC(22)=0.44 XFRAC(23)=0.46 ;XFRAC(24)=0.48 XFRAC(25)=0.5 ;XFRAC(26)=0.52 XFRAC(27)=0.54 ;XFRAC(28)=0.56 XFRAC(29)=0.58 ;XFRAC(30)=0.6 XFRAC(31)=0.62 ;XFRAC(32)=0.64 XFRAC(33)=0.66 ;XFRAC(34)=0.68 XFRAC(35)=0.7 ;XFRAC(36)=0.72 XFRAC(37)=0.74 ;XFRAC(38)=0.76 XFRAC(39)=0.78 ;XFRAC(40)=0.8 XFRAC(41)=0.82 ;XFRAC(42)=0.84 XFRAC(43)=0.86 ;XFRAC(44)=0.88 XFRAC(45)=0.9 ;XFRAC(46)=0.92 XFRAC(47)=0.94 ;XFRAC(48)=0.96 XFRAC(49)=0.98 ;XFRAC(50)=1. ************************************************************ Group 4. Y-Direction Grid Spacing NY = 1 YVLAST =500. YFRAC(1)=1. ************************************************************ Group 5. Z-Direction Grid Spacing PARAB = F NZ = 1 ZWLAST =10. ZFRAC(1)=1. ************************************************************ Group 6. Body-Fitted Coordinates ************************************************************ Group 7. Variables: STOREd,SOLVEd,NAMEd ONEPHS = T NAME(1)=P1 ;NAME(3)=U1 NAME(149)=VPOR ;NAME(150)=EPOR * 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,N,N,N,Y) SOLUTN(U1,Y,Y,N,N,N,Y) SOLUTN(VPOR,Y,N,N,N,N,Y) SOLUTN(EPOR,Y,N,N,N,N,Y) EPOR = 150 ;HPOR = 0 ;NPOR = 0 ;VPOR = 149 ************************************************************ 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) 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 =1000. ;TMP1 =0. ;EL1 =0. TSURR =0. ;TEMP0 =0. ;PRESS0 =0. DVO1DT =0. ;DRH1DP =1.019368E-05 EMISS =0. ;SCATT =0. RADIA =0. ;RADIB =0. ENUL =1.0E-06 ;ENUT =0. PRNDTL(U1)=1. PRT(U1)=1. CP1 =1. ;CP2 =1. ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initial field variables (PHIs) FIINIT(P1)=0. ;FIINIT(U1)=0.08 FIINIT(VPOR)=1. ;FIINIT(EPOR)=1. 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 No PATCHes yet used for this Group XCYCLE = F EGWF = T WALLCO = GRND2 ************************************************************ Group 14. Downstream Pressure For PARAB ************************************************************ Group 15. Terminate Sweeps LSWEEP = 15 ;ISWC1 = 1 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1 SELREF = T RESFAC =1.0E-05 ************************************************************ Group 16. Terminate Iterations LITER(P1)=20 ;LITER(U1)=10 ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(P1,LINRLX,1.) RELAX(U1,FALSDT,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(VPOR)=1.0E+10 ;VARMIN(VPOR)=-1.0E+10 VARMAX(EPOR)=1.0E+10 ;VARMIN(EPOR)=-1.0E+10 ************************************************************ Group 19. Data transmitted to GROUND PARSOL = F IPORIA = 1 ISG62 = 1 PORIA =1. ;PORIB =1.019368E-05 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,N,N,N,Y) OUTPUT(U1,Y,N,N,N,N,Y) OUTPUT(VPOR,Y,N,N,N,N,N) OUTPUT(EPOR,Y,N,N,N,N,N) ************************************************************ Group 22. Monitor Print-Out IXMON = 49 ;IYMON = 1 ;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 = 5 ;ISTPRF = 1 ;ISTPRL = 100000 NXPRIN = -1 ;IXPRF = 1 ;IXPRL = 10000 IPLTF = 1 ;IPLTL = -1 ;NPLT = -1 ISWPRF = 1 ;ISWPRL = 100000 ITABL = 2 ;IPROF = 1 ABSIZ =0.5 ;ORSIZ =0.4 NTZPRF = 1 ;NCOLPF = 50 ICHR = 2 ;NCOLCO = 45 ;NROWCO = 20 PATCH(WAVE ,PROFIL, 1, 50, 1, 1, 1, 1, 1, 100) PLOT(WAVE ,P1 ,0. ,200. ) PLOT(WAVE ,U1 ,0. ,0.088 ) PATCH(HALFWAY ,PROFIL, 25, 25, 1, 1, 1, 1, 1, 100) PLOT(HALFWAY ,P1 ,0. ,200. ) PLOT(HALFWAY ,U1 ,0. ,0.088 ) ************************************************************ Group 24. Dumps For Restarts SAVE = T ;NOWIPE = F NSAVE =CHAM IDISPA = 2 ;IDISPB = 0 ;IDISPC = 0 STOP