TALK=T;RUN(1,1) DISPLAY The system simulated is a horizontal cylindrical heat exchanger. Water enters the heat exchanger at the side, and is directed tangentially. It leaves through a vent at the top of the cylinder. Because of symmetry, only a 180 degree sector is considered as the domain of integration in cylindrical-polar coordinates. In its passage through the heat exchanger, the water is heated by a tube bank which supplies a constant heat flux in to the water. The blockage to flow caused by the presence of the tube bank is represented by means of porosity factors set by the command CONPOR. Momentum sinks representing the resistive effect of the tubes have not been included. The flow pattern is governed chiefly by buoyancy effects, with the result that for some heating rates, unexpected flow patterns are produced which cause hot spots to appear. The flow is laminar throughout. ENDDIS ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(Steady Free-Convec In Calandria ) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 14 ************************************************************ Group 2. Time dependence STEADY = T ************************************************************ Group 3. X-Direction Grid Spacing CARTES = F NX = 28 XULAST =3.1416 XFRAC(1)=0.035714 ;XFRAC(6)=0.214286 XFRAC(11)=0.392857 ;XFRAC(16)=0.571429 XFRAC(21)=0.75 ;XFRAC(26)=0.928571 ************************************************************ Group 4. Y-Direction Grid Spacing NY = 28 YVLAST =0.37 YFRAC(1)=0.035714 ;YFRAC(6)=0.214286 YFRAC(11)=0.392857 ;YFRAC(16)=0.571429 YFRAC(21)=0.75 ;YFRAC(26)=0.928571 ************************************************************ 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(1)=P1 ;NAME(3)=U1 NAME(5)=V1 ;NAME(14)=H1 NAME(148)=NPOR ;NAME(149)=EPOR NAME(150)=VPOR * 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(V1,Y,Y,N,N,N,Y) SOLUTN(H1,Y,Y,N,N,N,Y) SOLUTN(NPOR,Y,N,N,N,N,N) SOLUTN(EPOR,Y,N,N,N,N,N) SOLUTN(VPOR,Y,N,N,N,N,N) EPOR = 149 ;HPOR = 0 ;NPOR = 148 ;VPOR = 150 ************************************************************ 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) TERMS(V1,Y,Y,Y,Y,Y,Y) TERMS(H1,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 =1000. ;TMP1 =0. EL1 =0. TSURR =0. ;TEMP0 =0. PRESS0 =0. DVO1DT =5.12E-04 ;DRH1DP =0. EMISS =0. ;SCATT =0. RADIA =0. ;RADIB =0. ENUL =1.0E-06 ;ENUT =0. PRNDTL(U1)=1. ;PRNDTL(V1)=1. PRNDTL(H1)=6. PRT(U1)=1. ;PRT(V1)=1. PRT(H1)=1. CP1 =1. ;CP2 =1. ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initial field variables (PHIs) FIINIT(P1)=1.0E-10 ;FIINIT(U1)=1.0E-10 FIINIT(V1)=1.0E-10 ;FIINIT(H1)=28.700001 FIINIT(NPOR)=1. ;FIINIT(EPOR)=1. FIINIT(VPOR)=1. PATCH(CMP0 ,INIVAL, 1, 28, 1, 22, 1, 1, 1, 1) INIT(CMP0 ,VPOR,0. ,0.8 ) PATCH(CMP1 ,INIVAL, 1, 27, 1, 22, 1, 1, 1, 1) INIT(CMP1 ,EPOR,0. ,0.8 ) PATCH(CMP2 ,INIVAL, 1, 28, 1, 22, 1, 1, 1, 1) INIT(CMP2 ,NPOR,0. ,0.8 ) 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 ,EAST , 13, 13, 27, 27, 1, 1, 1, 1) COVAL(INLET ,P1 , FIXFLU ,130. ) COVAL(INLET ,U1 ,0. ,-0.13 ) COVAL(INLET ,V1 ,0. ,0. ) COVAL(INLET ,H1 ,0. ,28.700001 ) PATCH(OUTLET ,CELL , 28, 28, 28, 28, 1, 1, 1, 1) COVAL(OUTLET ,P1 ,1000. ,0. ) COVAL(OUTLET ,U1 ,0. ,0. ) COVAL(OUTLET ,V1 ,0. ,0. ) COVAL(OUTLET ,H1 ,0. , SAME ) PATCH(OUTER ,NWALL , 1, 28, 28, 28, 1, 1, 1, 1) COVAL(OUTER ,U1 ,1. ,0. ) PATCH(BUOYANT ,PHASEM, 1, 28, 1, 28, 1, 1, 1, 1) COVAL(BUOYANT ,U1 , FIXFLU , GRND3 ) COVAL(BUOYANT ,V1 , FIXFLU , GRND3 ) PATCH(HEAT ,VOLUME, 1, 28, 1, 22, 1, 1, 1, 1) COVAL(HEAT ,H1 , FIXFLU ,31.800001 ) XCYCLE = F EGWF = T WALLCO = GRND2 BUOYA =0. ; BUOYB =9.81 BUOYC =0. BUOYE =28.700001 ************************************************************ Group 14. Downstream Pressure For PARAB ************************************************************ Group 15. Terminate Sweeps LSWEEP = 250 ;ISWC1 = 1 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1 SELREF = T RESFAC =1.0E-04 ************************************************************ Group 16. Terminate Iterations LITER(P1)=20 ;LITER(U1)=10 LITER(V1)=10 ;LITER(H1)=20 ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03 ENDIT(V1)=1.0E-03 ;ENDIT(H1)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(P1,LINRLX,1.) RELAX(U1,FALSDT,0.1) RELAX(V1,FALSDT,0.1) RELAX(H1,FALSDT,2.) OVRRLX =0. EXPERT = F ;NNORSL = F ************************************************************ Group 18. Limits VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-1.0E+10 VARMAX(U1)=1. ;VARMIN(U1)=-1. VARMAX(V1)=1. ;VARMIN(V1)=-1. VARMAX(H1)=1.0E+10 ;VARMIN(H1)=28.700001 VARMAX(NPOR)=1.0E+10 ;VARMIN(NPOR)=-1.0E+10 VARMAX(EPOR)=1.0E+10 ;VARMIN(EPOR)=-1.0E+10 VARMAX(VPOR)=1.0E+10 ;VARMIN(VPOR)=-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,Y,N,Y,Y,Y,Y) OUTPUT(U1,Y,N,Y,Y,Y,Y) OUTPUT(V1,Y,N,Y,Y,Y,Y) OUTPUT(H1,Y,N,Y,Y,Y,Y) OUTPUT(NPOR,Y,N,Y,N,N,N) OUTPUT(EPOR,Y,N,Y,N,N,N) OUTPUT(VPOR,Y,N,Y,N,N,N) ************************************************************ Group 22. Monitor Print-Out IXMON = 3 ;IYMON = 5 ;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 NXPRIN = 5 ;IXPRF = 1 ;IXPRL = 10000 NYPRIN = 5 ;IYPRF = 1 ;IYPRL = 10000 IPLTF = 1 ;IPLTL = -1 ;NPLT = 12 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(DOMAIN ,CONTUR, 1, 28, 1, 28, 1, 1, 1, 1) PLOT(DOMAIN ,H1 ,1. ,20. ) ************************************************************ Group 24. Dumps For Restarts SAVE = T ;NOWIPE = F NSAVE =CHAM STOP