TALK=T;RUN(1,1) DISPLAY Zero-dimensional diffusion problem which can be tested against exact solution. ================================================= dPHI/dt=-PHI^m*t^n, PHI=1 for t=0. where m=1, 0.<=t<=2.5 n=0, 0.<=t<=2.5 m=4, t> 2.5 n=3, t> 2.5 ================================================ One computational cell is used in this study of the time variation of pollutant concentration. ENDDIS PLANTBEGIN PATCH(DIS2,CELL,1,NX,1,NY,1,1,lstep/2+1,lstep)CO=C1**3*TIM**3 COVAL(DIS2,C1,GRND,0.0) PLANTEND ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(ABSORPTIVE DISPERSAL WITH STEP-TIME DEPE) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 105 ************************************************************ Group 2. Time dependence STEADY = F * Set overall time and no. of steps TFIRST =0. ;TLAST =5. FSTEP = 1 ;LSTEP = 10 TFRAC(1)=0.1 ;TFRAC(2)=0.2 TFRAC(3)=0.3 ;TFRAC(4)=0.4 TFRAC(5)=0.5 ;TFRAC(6)=0.6 TFRAC(7)=0.7 ;TFRAC(8)=0.8 TFRAC(9)=0.9 ;TFRAC(10)=1. ************************************************************ Group 3. X-Direction Grid Spacing CARTES = T NX = 1 XULAST =1. XFRAC(1)=1. ************************************************************ Group 4. Y-Direction Grid Spacing NY = 1 YVLAST =1. YFRAC(1)=1. ************************************************************ Group 5. Z-Direction Grid Spacing PARAB = F NZ = 1 ZWLAST =1. ZFRAC(1)=1. ************************************************************ Group 6. Body-Fitted Coordinates ************************************************************ Group 7. Variables: STOREd,SOLVEd,NAMEd ONEPHS = T NAME(16)=C1 * Y in SOLUTN argument list denotes: * 1-stored 2-solved 3-whole-field * 4-point-by-point 5-explicit 6-harmonic averaging SOLUTN(C1,Y,Y,N,N,N,Y) ************************************************************ 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(C1,N,N,N,Y,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-05 ;ENUT =0. CP1 =1. ;CP2 =1. ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initial field variables (PHIs) FIINIT(C1)=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 PATCH(DIS1 ,CELL , 1, 1, 1, 1, 1, 1, 1, 5) COVAL(DIS1 ,C1 ,1. ,0. ) PATCH(DIS2 ,CELL , 1, 1, 1, 1, 1, 1, 6, 10) COVAL(DIS2 ,C1 , GRND ,0. ) XCYCLE = F EGWF = T WALLCO = GRND2 ************************************************************ Group 14. Downstream Pressure For PARAB ************************************************************ Group 15. Terminate Sweeps LSWEEP = 5 ;ISWC1 = 1 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1 SELREF = T RESFAC =1.0E-05 ************************************************************ Group 16. Terminate Iterations LITER(C1)=20 ENDIT(C1)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(C1,FALSDT,1.0E+09) OVRRLX =0. EXPERT = F ;NNORSL = F ************************************************************ Group 18. Limits VARMAX(C1)=1.0E+10 ;VARMIN(C1)=-1.0E+10 ************************************************************ Group 19. Data transmitted to GROUND NAMSAT =MOSG PARSOL = F ISG62 = 1 SPEDAT(SET,GXMONI,TRANSIENT,L,F) SPEDAT(SET,GXMONI,PLOTALL,L,T) ************************************************************ Group 20. Preliminary Printout DISTIL = T ;NULLPR = F NDST = 0 DSTTOL =1.0E-02 EX(C1)=0.1032 ************************************************************ 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(C1,Y,N,Y,Y,Y,Y) ************************************************************ Group 22. Monitor Print-Out IXMON = 1 ;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 = 100000 ;ISTPRF = 1 ;ISTPRL = 100000 IPLTF = 1 ;IPLTL = -1 ;NPLT = -1 ISWPRF = 1 ;ISWPRL = 100000 ITABL = 3 ;IPROF = 2 ABSIZ =0.5 ;ORSIZ =0.4 NTZPRF = 1 ;NCOLPF = 50 ICHR = 2 ;NCOLCO = 45 ;NROWCO = 20 PATCH(TIMEPLOT,PROFIL, 1, 1, 1, 1, 1, 1, 1, 10) PLOT(TIMEPLOT,C1 ,0. ,1. ) ************************************************************ Group 24. Dumps For Restarts SAVE = T ;NOWIPE = F NSAVE =CHAM STOP