TALK=T;RUN(1,1) DISPLAY HEAT-EXCHANGER SIMULATIONS BY MEANS OF PHOENICS These examples make extensive use of the "neighbour" technique, whereby the use of a special patch name activates special calls in GROUND which are to be included in GREX. It will be useful to extend the series further, so as to illustrate how two-phase flow can be handled on tube and shell sides of a boiler, and to show also how cooling-tower problems can be handled with the aid of this technique. ENDDIS ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(In-Form equivalent of library case 790 ) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 367 ************************************************************ Group 2. Time dependence STEADY = T ************************************************************ Group 3. X-Direction Grid Spacing CARTES = T NX = 20 XULAST =10. XFRAC(1)=0.05 ;XFRAC(5)=0.25 XFRAC(9)=0.45 ;XFRAC(13)=0.65 XFRAC(17)=0.85 ************************************************************ 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(14)=1STH ;NAME(15)=2NDH 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(1STH,Y,Y,N,N,N,Y) SOLUTN(2NDH,Y,Y,N,N,N,Y) SOLUTN(EPOR,Y,N,N,N,N,Y) EPOR = 150 ;HPOR = 0 ;NPOR = 0 ;VPOR = 0 ************************************************************ 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(1STH,N,N,N,Y,Y,Y) TERMS(2NDH,N,N,N,Y,N,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. CP1 =1. ;CP2 =1. ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initial field variables (PHIs) FIINIT(1STH)=1. ;FIINIT(2NDH)=0. FIINIT(EPOR)=0.5 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(INLET1 ,CELL , 1, 1, 1, 1, 1, 1, 1, 1000) COVAL(INLET1 ,1STH,0.1 ,1. ) PATCH(INLET2 ,CELL , 20, 20, 1, 1, 1, 1, 1, 1000) COVAL(INLET2 ,2NDH,0.1 ,0. ) PATCH(INEW1 ,CELL , 2, 20, 1, 1, 1, 1, 1, 1000) COVAL(INEW1 ,1STH,In-Form:source - see Grp 19) PATCH(INEE1 ,CELL , 1, 19, 1, 1, 1, 1, 1, 1000) COVAL(INEE1 ,2NDH,In-Form:source - see Grp 19) PATCH(INEPLUS ,VOLUME, 1, 20, 1, 1, 1, 1, 1, 1000) COVAL(INEPLUS ,1STH,In-Form:source - see Grp 19) PATCH(INEMINUS,VOLUME, 1, 20, 1, 1, 1, 1, 1, 1000) COVAL(INEMINUS,2NDH,In-Form:source - see Grp 19) XCYCLE = F EGWF = T WALLCO = GRND2 ************************************************************ Group 14. Downstream Pressure For PARAB ************************************************************ Group 15. Terminate Sweeps LSWEEP = 50 ;ISWC1 = 1 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1 SELREF = T RESFAC =1.0E-05 ************************************************************ Group 16. Terminate Iterations LITER(1STH)=20 ;LITER(2NDH)=20 ENDIT(1STH)=1.0E-03 ;ENDIT(2NDH)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(1STH,FALSDT,5.) RELAX(2NDH,FALSDT,5.) OVRRLX =0. EXPERT = F ;NNORSL = F ************************************************************ Group 18. Limits VARMAX(1STH)=1.0E+10 ;VARMIN(1STH)=-1.0E+10 VARMAX(2NDH)=1.0E+10 ;VARMIN(2NDH)=-1.0E+10 VARMAX(EPOR)=1.0E+10 ;VARMIN(EPOR)=-1.0E+10 ************************************************************ Group 19. Data transmitted to GROUND PARSOL = F ISG62 = 1 SPEDAT(SET,SOURCE,1STH!INEW1,C,=0.1*(1STH[-1]-1STH)!LINE) SPEDAT(SET,SOURCE,2NDH!INEE1,C,=0.1*(2NDH[+1]-2NDH)!LINE) SPEDAT(SET,SOURCE,1STH!INEPLUS,C,=0.05*(2NDH-1STH)!LINE) SPEDAT(SET,SOURCE,2NDH!INEMINUS,C,=0.05*(1STH-2NDH)!LINE) SPEDAT(SET,GXMONI,PLOTALL,L,T) ************************************************************ Group 20. Preliminary Printout DISTIL = T ;NULLPR = F NDST = 0 DSTTOL =1.0E-02 EX(1STH)=0.5715 ;EX(2NDH)=0.4116 EX(EPOR)=0.5 ************************************************************ 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(1STH,N,N,Y,Y,Y,Y) OUTPUT(2NDH,N,N,Y,Y,Y,Y) OUTPUT(EPOR,N,N,N,N,N,N) ************************************************************ Group 22. Monitor Print-Out IXMON = 10 ;IYMON = 1 ;IZMON = 1 NPRMON = 100000 ;NPRMNT = 1 ;TSTSWP = 5 UWATCH = T ;USTEER = T HIGHLO = F ************************************************************ Group 23.Field Print-Out & Plot Control NPRINT = 100000 ;NUMCLS = 5 NXPRIN = 4 ;IXPRF = 1 ;IXPRL = 10000 IPLTF = 1 ;IPLTL = 50 ;NPLT = 1 ISWPRF = 1 ;ISWPRL = 100000 ITABL = 3 ;IPROF = 3 ABSIZ =0.5 ;ORSIZ =0.4 NTZPRF = 1 ;NCOLPF = 50 ICHR = 2 ;NCOLCO = 45 ;NROWCO = 20 PATCH(PROFILES,PROFIL, 1, 20, 1, 1, 1, 1, 1, 1000) PLOT(PROFILES,1STH,0. ,1. ) PLOT(PROFILES,2NDH,0. ,1. ) ************************************************************ Group 24. Dumps For Restarts SAVE = T ;NOWIPE = F NSAVE =CHAM STOP