TALK=T;RUN(1,1) PHOTON USE p phi 1 .25 .75 msg 3D RADIATIVE HEAT TRANSFER IN A BOX msg msg Temperature distribution: gr ou x 1;gr ou y 1;gr ou z 1 con h1 x 1 fi ;0.001 con h1 y 1 fi ;0.001 con h1 z 1 fi ;0.001 msg msg Pressto continue pause con off;red msg x-wise radiative flux: con radx x 1 fi;0.001 con radx y 1 fi; 0.001 con radx z 1 fi; 0.001 msg msg Press to continue pause con off;red msg y-wise radiative flux: con rady x 1 fi;0.001 con rady y 1 fi;0.001 con rady z 1 fi;0.001 msg msg Press to continue pause con off;red msg z-wise radiative flux: con radz x 1 fi;0.001 con radz y 1 fi;0.001 con radz z 1 fi;0.001 msg msg Press e to END enduse DISPLAY Radiative heat transfer in a 3D box is considered. Four of the walls are kept at constant but different temperatures; the other two walls are assumed to be adiabatic. The emissivities of the walls are assumed to be equal. Further background information is supplied in cases 550 and 551. ENDDIS ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(3D Radiant Heat Transfer In A Box ) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 14 ************************************************************ Group 2. Time dependence STEADY = T ************************************************************ Group 3. X-Direction Grid Spacing CARTES = T NX = 8 XULAST =1. XFRAC(1)=0.125 ;XFRAC(2)=0.25 XFRAC(3)=0.375 ;XFRAC(4)=0.5 XFRAC(5)=0.625 ;XFRAC(6)=0.75 XFRAC(7)=0.875 ;XFRAC(8)=1. ************************************************************ Group 4. Y-Direction Grid Spacing NY = 8 YVLAST =1. YFRAC(1)=0.125 ;YFRAC(3)=0.375 YFRAC(5)=0.625 ;YFRAC(7)=0.875 ************************************************************ Group 5. Z-Direction Grid Spacing PARAB = F NZ = 8 ZWLAST =1. ZFRAC(1)=0.125 ;ZFRAC(3)=0.375 ZFRAC(5)=0.625 ;ZFRAC(7)=0.875 ************************************************************ Group 6. Body-Fitted Coordinates ************************************************************ Group 7. Variables: STOREd,SOLVEd,NAMEd ONEPHS = T NAME(14)=H1 ;NAME(148)=RADX NAME(149)=RADY ;NAME(150)=RADZ * Y in SOLUTN argument list denotes: * 1-stored 2-solved 3-whole-field * 4-point-by-point 5-explicit 6-harmonic averaging SOLUTN(H1,Y,Y,Y,N,N,Y) SOLUTN(RADX,Y,Y,N,N,N,N) SOLUTN(RADY,Y,Y,N,N,N,N) SOLUTN(RADZ,Y,Y,Y,N,N,N) ************************************************************ 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(H1,N,N,Y,N,Y,N) TERMS(RADX,N,N,Y,N,Y,N) TERMS(RADY,N,N,Y,N,Y,N) TERMS(RADZ,N,N,Y,N,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 = GRND2 ;EL1 =0. TSURR =0. ;TEMP0 =0. ;PRESS0 =0. DVO1DT =0. ;DRH1DP =0. TMP1A =0. ;TMP1B =1. ;TMP1C =0. TMP2A =0. ;TMP2B =0. ;TMP2C =0. EMISS =0. ;SCATT =0. RADIA =0.3 ;RADIB =0.05 ENUL =1.0E-05 ;ENUT =0. PRNDTL(H1)=0.73 ;PRNDTL(RADX)=-GRND1 PRNDTL(RADY)=-GRND1 ;PRNDTL(RADZ)=-GRND1 PRT(H1)=1. ;PRT(RADX)=1.0E+10 PRT(RADY)=1.0E+10 ;PRT(RADZ)=1.0E+10 CP1 =1. ;CP2 =1. ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initial field variables (PHIs) FIINIT(H1)=600. ;FIINIT(RADX)=7347.931152 FIINIT(RADY)=7347.931152 ;FIINIT(RADZ)=7347.931152 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(RADISO ,FREEVL, 0, 0, 0, 0, 0, 0, 1, 1) COVAL(RADISO ,H1 , GRND1 , GRND1 ) COVAL(RADISO ,RADX, GRND1 , GRND1 ) COVAL(RADISO ,RADY, GRND1 , GRND1 ) COVAL(RADISO ,RADZ, GRND1 , GRND1 ) PATCH(HOTWR ,WEST , 1, 1, 1, 8, 1, 8, 1, 1) COVAL(HOTWR ,RADX,0.818182 ,3543.5625 ) PATCH(HOTWH ,WWALL , 1, 1, 1, 8, 1, 8, 1, 1) COVAL(HOTWH ,H1 ,1.369863 ,500. ) PATCH(HOTNR ,NORTH , 1, 8, 8, 8, 1, 8, 1, 1) COVAL(HOTNR ,RADY,0.818182 ,1.361295E+04 ) PATCH(HOTNH ,NWALL , 1, 8, 8, 8, 1, 8, 1, 1) COVAL(HOTNH ,H1 ,1.369863 ,700. ) PATCH(HOTLR ,LOW , 1, 8, 1, 8, 1, 1, 1, 1) COVAL(HOTLR ,RADZ,0.818182 ,459.245697 ) PATCH(HOTLH ,LWALL , 1, 8, 1, 8, 1, 1, 1, 1) COVAL(HOTLH ,H1 ,1.369863 ,300. ) PATCH(HOTHR ,HIGH , 1, 8, 1, 8, 8, 8, 1, 1) COVAL(HOTHR ,RADZ,0.818182 ,1.175669E+05 ) PATCH(HOTHH ,HWALL , 1, 8, 1, 8, 8, 8, 1, 1) COVAL(HOTHH ,H1 ,1.369863 ,1200. ) XCYCLE = F EGWF = T WALLCO = GRND2 ************************************************************ Group 14. Downstream Pressure For PARAB ************************************************************ Group 15. Terminate Sweeps LSWEEP = 30 ;ISWC1 = 1 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1 SELREF = T RESFAC =1.0E-02 ************************************************************ Group 16. Terminate Iterations LITER(H1)=20 ;LITER(RADX)=2 LITER(RADY)=2 ;LITER(RADZ)=2 ENDIT(H1)=1.0E-03 ;ENDIT(RADX)=1.0E-03 ENDIT(RADY)=1.0E-03 ;ENDIT(RADZ)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(H1,FALSDT,1.0E-02) RELAX(RADX,FALSDT,1.0E+09) RELAX(RADY,FALSDT,1.0E+09) RELAX(RADZ,FALSDT,1.0E+09) OVRRLX =0. EXPERT = F ;NNORSL = F ************************************************************ Group 18. Limits VARMAX(H1)=1.0E+10 ;VARMIN(H1)=-1.0E+10 VARMAX(RADX)=1.0E+10 ;VARMIN(RADX)=-1.0E+10 VARMAX(RADY)=1.0E+10 ;VARMIN(RADY)=-1.0E+10 VARMAX(RADZ)=1.0E+10 ;VARMIN(RADZ)=-1.0E+10 ************************************************************ Group 19. Data transmitted to GROUND PARSOL = F ISG62 = 1 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(H1,Y,N,Y,Y,Y,Y) OUTPUT(RADX,Y,N,Y,Y,Y,Y) OUTPUT(RADY,Y,N,Y,Y,Y,Y) OUTPUT(RADZ,Y,N,Y,Y,Y,Y) ************************************************************ Group 22. Monitor Print-Out IXMON = 4 ;IYMON = 4 ;IZMON = 4 NPRMON = 100000 ;NPRMNT = 1 ;TSTSWP = -1 UWATCH = T ;USTEER = T HIGHLO = F ************************************************************ Group 23.Field Print-Out & Plot Control NPRINT = 100000 ;NUMCLS = 5 NXPRIN = -1 ;IXPRF = 4 ;IXPRL = 4 NYPRIN = 2 ;IYPRF = 1 ;IYPRL = 10000 NZPRIN = 2 ;IZPRF = 1 ;IZPRL = 10000 XZPR = F ;YZPR = T 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(MIDPLANE,CONTUR, 1, 8, 1, 8, 4, 4, 1, 1) PLOT(MIDPLANE,H1 ,0. ,10. ) PLOT(MIDPLANE,RADX,0. ,10. ) PLOT(MIDPLANE,RADY,0. ,10. ) PLOT(MIDPLANE,RADZ,0. ,10. ) ************************************************************ Group 24. Dumps For Restarts SAVE = T ;NOWIPE = F NSAVE =CHAM STOP