TALK=T;RUN(1,1) DISPLAY The boiling of water in an enclosed vessel is considered. Heat is added at a fixed rate to the liquid, and the liquid gradually boils away. The latent heat is taken as constant, which in view of the enormous increase in pressure with time is physically incorrect. This defect is made good in the following case: comparison of the two cases is interesting. Only one control cell is used, ie. no velocities are solved. This is done to focus attention on the formulation of interphase transport in EARTH, & especially the deduction of the rate of evaporation from the net heat transferred to the interface between the phases. ENDDIS DISPLAY This case is similar to case 410, except that a pressure-relief valve is provided, to enable vapour to escape. ENDDIS ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(0D BOILING IN VESSEL+PRESS RELIEF: W412) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 410 ************************************************************ Group 2. Time dependence STEADY = F * Set overall time and no. of steps TFIRST =0. ;TLAST =15. FSTEP = 1 ;LSTEP = 80 TFRAC(1)=1.397543E-03 ;TFRAC(17)=0.097958 TFRAC(33)=0.264933 ;TFRAC(49)=0.479357 TFRAC(65)=0.732378 ************************************************************ 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 = F EQUVEL = F NAME(1)=P1 ;NAME(9)=GAS NAME(10)=LIQ ;NAME(14)=H1 NAME(15)=H2 ;NAME(149)=MDOT NAME(150)=RHO1 * 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(GAS,Y,Y,N,N,N,Y) SOLUTN(LIQ,Y,Y,N,N,N,Y) SOLUTN(H1,Y,Y,N,N,N,Y) SOLUTN(H2,Y,Y,N,N,N,Y) SOLUTN(MDOT,Y,N,N,N,N,Y) SOLUTN(RHO1,Y,N,N,N,N,Y) DEN1 = 150 INTMDT = 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(GAS,Y,Y,Y,Y,Y,Y) TERMS(LIQ,Y,Y,Y,Y,N,Y) TERMS(H1,Y,Y,Y,Y,Y,Y) TERMS(H2,Y,Y,Y,Y,N,Y) DIFCUT =0.5 ;ZDIFAC =1. GALA = F ;ADDDIF = F NEWRH1 = T EQDVDP = F HUNIT =1.0E-05 ISOLX = -1 ;ISOLY = -1 ;ISOLZ = -1 ************************************************************ Group 9. Properties used if PRPS is not stored, and where PRPS = -1.0 if it is! RHO1 = GRND3 ;TMP1 =0. ;EL1 =0. TSURR =0. ;TEMP0 =0. ;PRESS0 =1.0E+05 DVO1DT =0. ;DRH1DP = GRND3 RHO1A =9.22E-06 ;RHO1B =0.959 ;RHO1C =0. EMISS =0. ;SCATT =0. RADIA =0. ;RADIB =0. RHO2 =1000. ;TMP2 =0. ;EL2 =0. DVO2DT =0. ;DRH2DP =0. ENUL =1.0E-05 ;ENUT =0. PHINT(GAS)=-2.022E+04 ;PHINT(LIQ)=-2.022E+04 PHINT(H1)=26. ;PHINT(H2)=5. PRNDTL(GAS)=1. ;PRNDTL(LIQ)=1. PRNDTL(H1)=1. ;PRNDTL(H2)=1. PRT(GAS)=1. ;PRT(LIQ)=1. PRT(H1)=1. ;PRT(H2)=1. CP1 =1. ;CP2 =1. ************************************************************ Group 10.Inter-Phase Transfer Processes CFIPS =1. RLOLIM =0. ;CMDOT = HEATBL CINT(P1)=1. ;CINT(GAS)=1. CINT(LIQ)=1. ;CINT(H1)=100. CINT(H2)=100. PHINT(P1)=-2.022E+04 ;PHINT(GAS)=-2.022E+04 PHINT(LIQ)=-2.022E+04 ;PHINT(H1)=26. PHINT(H2)=5. ************************************************************ Group 11.Initial field variables (PHIs) FIINIT(P1)=0. ;FIINIT(GAS)=0.5 FIINIT(LIQ)=0.5 ;FIINIT(H1)=26. FIINIT(H2)=5. ;FIINIT(MDOT)=1.0E-10 FIINIT(RHO1)=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(HEAT ,CELL , 1, 1, 1, 1, 1, 1, 1, 80) COVAL(HEAT ,H2 , FIXFLU ,500. ) PATCH(RELIEP ,CELL , 1, 1, 1, 1, 1, 1, 1, 80) COVAL(RELIEP ,GAS ,1. ,0. ) XCYCLE = F EGWF = T WALLCO = GRND2 ************************************************************ Group 14. Downstream Pressure For PARAB ************************************************************ Group 15. Terminate Sweeps LSWEEP = 10 ;ISWC1 = 1 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1 ISWR1 = 1 ;ISWR2 = 10000 SELREF = T RESFAC =1.0E-05 ************************************************************ Group 16. Terminate Iterations LITER(P1)=20 ;LITER(GAS)=1 LITER(LIQ)=1 ;LITER(H1)=20 LITER(H2)=20 ENDIT(P1)=1.0E-03 ;ENDIT(GAS)=1.0E-03 ENDIT(LIQ)=1.0E-03 ;ENDIT(H1)=1.0E-03 ENDIT(H2)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(P1,LINRLX,1.) RELAX(GAS,LINRLX,0.4) RELAX(LIQ,LINRLX,0.4) RELAX(H1,FALSDT,1.) RELAX(H2,FALSDT,1.) RELAX(MDOT,LINRLX,1.) RELAX(RHO1,LINRLX,1.) OVRRLX =0. EXPERT = F ;NNORSL = F ************************************************************ Group 18. Limits VARMAX(P1)=1.0E+10 ;VARMIN(P1)=0. VARMAX(GAS)=1. ;VARMIN(GAS)=1.0E-06 VARMAX(LIQ)=1. ;VARMIN(LIQ)=1.0E-06 VARMAX(H1)=1.0E+10 ;VARMIN(H1)=-1.0E+10 VARMAX(H2)=1.0E+10 ;VARMIN(H2)=-1.0E+10 VARMAX(MDOT)=1.0E+10 ;VARMIN(MDOT)=-1.0E+10 VARMAX(RHO1)=1.0E+10 ;VARMIN(RHO1)=0.1 ************************************************************ Group 19. Data transmitted to GROUND PARSOL = F ISG62 = 1 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,Y,Y,Y,Y) OUTPUT(GAS,Y,N,Y,Y,Y,Y) OUTPUT(LIQ,Y,N,Y,Y,Y,Y) OUTPUT(H1,Y,N,Y,Y,Y,Y) OUTPUT(H2,Y,N,Y,Y,Y,Y) OUTPUT(MDOT,Y,N,Y,N,N,N) OUTPUT(RHO1,Y,N,Y,N,N,N) ************************************************************ Group 22. Monitor Print-Out IXMON = 1 ;IYMON = 1 ;IZMON = 1 NPRMON = 100000 ;NPRMNT = 5 ;TSTSWP = -1 UWATCH = T ;USTEER = T HIGHLO = F ************************************************************ Group 23.Field Print-Out & Plot Control NPRINT = 100000 ;NUMCLS = 5 NTPRIN = 16 ;ISTPRF = 1 ;ISTPRL = 100000 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(PLOT ,PROFIL, 1, 1, 1, 1, 1, 1, 1, 80) PLOT(PLOT ,P1 ,0. ,0. ) PLOT(PLOT ,GAS ,0. ,1. ) PLOT(PLOT ,LIQ ,0. ,1. ) PLOT(PLOT ,MDOT,0. ,0. ) ************************************************************ Group 24. Dumps For Restarts SAVE = T ;NOWIPE = F NSAVE =CHAM STOP