TALK=T;RUN( 1, 1) ************************************************************ Q1 created by VDI menu, Version 2012, Date 19/10/12 CPVNAM=VDI;SPPNAM=Core ************************************************************ Echo DISPLAY / USE settings DISPLAY A direct-fired furnace for heat treating solid materials is a rectangular 3D box in shape. The side walls and roof are naturally cooled by ambient air with an estimated heat transfer coefficient. The have an emmitance of 0.9. The furnace floor is refractory and covered by three beams of load made from brick material with an emmitance of 0.9. The preheated methane gas premixed with air enters the furnace with an angle to the floor through closely spaced ports at the side wall. It ignites and steady kinetically-controled combustion takes place producing hot non-scattering furnace gases with an absorption coefficient equal to 0.8. The exhaust opening is at the opposite side wall. The task is to calculate the operating temperatures of the load and furnace gases along with all related field distributions. ENDDIS VRV USE SLICE Z * View and up directions VIEW 0.000000E+00 0.000000E+00 -1.000000E+00 UP 0.000000E+00 1.000000E+00 0.000000E+00 * View centre VIEW CENTRE 5.000000E-01 1.600000E-01 5.000000E-01 * View size VIEW SIZE 6.524845E-01 * View perspective VIEW DEPTH 3.000000E+00;VIEW TILT 0.8 VARIABLE TEMPERATURE VECTOR OFF CONTOUR ON SURFACE OFF PAUSE VARIABLE T3 PAUSE VARIABLE QRY PAUSE VARIABLE QRX ENDUSE PHOTON USE p; ; ; ; ; msg Temperature contours (Tmp1) con tmp1 z 3 fi;0.001 ; pause;cl msg Radiation temperature contours (T3) con t3 z 3 fi;0.001 ; pause;cl msg x-direction heat flux (qrx) contours con qrx z 3 fi;0.001 ; pause;cl msg y-direction heat flux (qry) contours con qry z 3 fi;0.001 ; pause;cl MSG Solution coefficients for H1 con #an1 z 3 fi;0.001 ; pause con #ae1 z 3 fi;0.001 ; pause con #ap1 z 3 fi;0.001 ; pause con #rs1 z 3 fi;0.001 ; pause con #cr1 z 3 fi;0.001 ; pause;cl MSG Solution coefficients for T3 con #an3 z 3 fi;0.001 ; pause con #ae3 z 3 fi;0.001 ; pause con #ap3 z 3 fi;0.001 ; pause con #rs3 z 3 fi;0.001 ; pause con #cr3 z 3 fi;0.001 ; pause ENDUSE ************************************************************ IRUNN = 1 ;LIBREF = 0 ************************************************************ Group 1. Run Title TEXT(Heat treatment in a direct-fired furnace) ************************************************************ Group 2. Transience STEADY = T ************************************************************ Groups 3, 4, 5 Grid Information * Overall number of cells, RSET(M,NX,NY,NZ,tolerance) RSET(M,20,10,5) ************************************************************ Group 6. Body-Fitted coordinates ************************************************************ Group 7. Variables: STOREd,SOLVEd,NAMEd * Non-default variable names NAME(132)=CP1 ;NAME(133)=SCAT NAME(134)=EMIS ;NAME(135)=EPKE NAME(136)=ENUT ;NAME(137)=GEN1 NAME(138)=WDIS ;NAME(139)=WGAP NAME(140)=PROD ;NAME(141)=OXID NAME(142)=PRPS ;NAME(143)=QRZ NAME(144)=QRY ;NAME(145)=QRX NAME(146)=DEN1 ;NAME(147)=TMP1 NAME(148)=FUEL ;NAME(149)=T3 NAME(150) =MIXF * Solved variables list SOLVE(P1,U1,V1,W1,H1,FUEL,T3,MIXF) * Stored variables list STORE(TMP1,DEN1,QRX,QRY,QRZ,PRPS,OXID,PROD) STORE(WGAP,WDIS,GEN1,ENUT,EPKE,EMIS,SCAT,CP1) TURMOD(KEMODL) ************************************************************ Group 8. Terms & Devices TERMS (H1 ,N,Y,Y,N,Y,N) TERMS (T3 ,N,N,Y,N,Y,N) NEWRH1 = T ************************************************************ Group 9. Properties PRESS0 =1.0E+05 * Domain material index is 30 signifying: * Ideal gas Law for mixture of 3 gases (ENUL=3.6E-5/GRHO) SETPRPS(1, 30) TMP1 = GRND8 TMP1A =1500. ;TMP1B =1500. TMP1C =1500. TMP2A =0.054825 ;TMP2B =4.9E+07 TMP2C =0. DISWAL DRH1DP =3.41E-03 DVO1DT =3.33E-03 PRNDTL(H1)=-0.0263 ;PRNDTL(T3)=-0.0263 PRT(EP)=1.314 EMISS =0.8 ;SCATT =0. RADIA =0.8 ;RADIB =0. ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initialise Var/Porosity Fields FIINIT(U1)=2. ;FIINIT(KE)=0.45 FIINIT(EP)=0.57404 ;FIINIT(H1)=1.1595E+06 FIINIT(EMIS)=0.8 ;FIINIT(EPKE)=1. FIINIT(ENUT)=1.001E-10 ;FIINIT(GEN1)=1.001E-10 FIINIT(WDIS)=0.032 ;FIINIT(PROD)=1.001E-10 FIINIT(OXID)=1.001E-10 ;FIINIT(PRPS)=30. FIINIT(DEN1)=0.3 ;FIINIT(TMP1)=300. FIINIT(FUEL)=0.1 ;FIINIT(MIXF)=0.1 No PATCHes used for this Group INIADD = F ************************************************************ Group 12. Convection and diffusion adjustments No PATCHes used for this Group ************************************************************ Group 13. Boundary & Special Sources PATCH(CHSO, PHASEM, 0, 0, 0, 0, 0, 0, 1, 1) COVAL(CHSO, FUEL, GRND9, GRND9) EGWF = T ************************************************************ Group 14. Downstream Pressure For PARAB ************************************************************ Group 15. Terminate Sweeps LSWEEP = 1000 RESFAC =1.0E-06 ************************************************************ Group 16. Terminate Iterations ************************************************************ Group 17. Relaxation RELAX(P1 ,LINRLX,0.9 ) RELAX(KE ,LINRLX,0.5 ) RELAX(EP ,LINRLX,0.5 ) RELAX(H1 ,LINRLX,0.5 ) RELAX(T3 ,LINRLX,0.5 ) RELAX(DEN1,LINRLX,0.9 ) RELAX(MIXF,LINRLX,0.9 ) KELIN = 3 ************************************************************ Group 18. Limits VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-5.0E-06 VARMAX(TMP1)=1.0E+10 ;VARMIN(TMP1)=300. ************************************************************ Group 19. EARTH Calls To GROUND Station GENK = T CONWIZ = T RELAX(DEN1,LINRLX,0.1) CHSOA =0.054825 ;CHSOB =1. ************************************************************ Group 20. Preliminary Printout ************************************************************ Group 21. Print-out of Variables OUTPUT(W1 ,Y,Y,Y,N,Y,Y) OUTPUT(WDIS,Y,N,N,N,N,N) ************************************************************ Group 22. Monitor Print-Out IXMON = 10 ;IYMON = 1 ;IZMON = 3 NPRMON = 100000 NPRMNT = 1 TSTSWP = -1 ************************************************************ Group 23.Field Print-Out & Plot Control NPRINT = 100000 ISWPRF = 1 ;ISWPRL = 100000 No PATCHes used for this Group ************************************************************ Group 24. Dumps For Restarts GVIEW(P,0.,0.,-1.) GVIEW(UP,0.,1.,0.) > DOM, SIZE, 1.000000E+00, 3.200000E-01, 1.000000E+00 > DOM, MONIT, 4.750000E-01, 1.600000E-02, 5.000000E-01 > DOM, SCALE, 1.000000E+00, 1.000000E+00, 1.000000E+00 > GRID, RSET_X_1, 20, 1.000000E+00 > GRID, RSET_Y_1, 10, 1.000000E+00 > GRID, RSET_Z_1, 5, 1.000000E+00 > OBJ, NAME, IMSWL1 > OBJ, POSITION, 0.000000E+00, 0.000000E+00, 0.000000E+00 > OBJ, SIZE, 1.000000E+00, 0.000000E+00, 1.000000E+00 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, cube11 > OBJ, TYPE, PLATE > OBJ, EMISSIVITY, 1. > OBJ, NAME, IMSWL2 > OBJ, POSITION, 0.000000E+00, 3.200000E-01, 0.000000E+00 > OBJ, SIZE, 1.000000E+00, 0.000000E+00, 1.000000E+00 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, cube13 > OBJ, TYPE, PLATE > OBJ, SURF_HEAT, 1. ,0. > OBJ, PARA_HEAT, 1. ,1. ,0. > OBJ, T_EXT, 300. > OBJ, EMISSIVITY, 0.9 > OBJ, NAME, B5 > OBJ, POSITION, 2.000000E-01, 0.000000E+00, 0.000000E+00 > OBJ, SIZE, 1.000000E-01, 9.600000E-02, 6.000000E-01 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, cube > OBJ, GRID, N,N,N > OBJ, TYPE, BLOCKAGE > OBJ, MATERIAL, 102,BRICK at 20 deg c > OBJ, EMISSIVITY, 1. > OBJ, NAME, B6 > OBJ, POSITION, 1.000000E+00, 0.000000E+00, 0.000000E+00 > OBJ, SIZE, 0.000000E+00, 3.200000E-01, 1.000000E+00 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, cube13 > OBJ, TYPE, PLATE > OBJ, SURF_HEAT, 0. ,0. > OBJ, PARA_HEAT, 1. ,1. ,0. > OBJ, T_EXT, 300. > OBJ, EMISSIVITY, 0.9 > OBJ, NAME, B7 > OBJ, POSITION, 0.000000E+00, 0.000000E+00, 0.000000E+00 > OBJ, SIZE, 0.000000E+00, 3.200000E-01, 1.000000E+00 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, cube13 > OBJ, TYPE, PLATE > OBJ, SURF_HEAT, 0. ,0. > OBJ, PARA_HEAT, 1. ,1. ,0. > OBJ, T_EXT, 300. > OBJ, EMISSIVITY, 0.9 > OBJ, NAME, OUTLET > OBJ, POSITION, 1.000000E+00, 2.400000E-01, 0.000000E+00 > OBJ, SIZE, 0.000000E+00, 8.000000E-02, 1.000000E+00 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, cube12t > OBJ, GRID, N,N,N > OBJ, TYPE, OUTLET > OBJ, PRESSURE, 0. > OBJ, TEMPERATURE, 0. > OBJ, COEFFICIENT, 1000. > OBJ, TURBULENCE, SAME , SAME > OBJ, T_EXT, 3.000000E+02 > OBJ, NAME, INLET > OBJ, POSITION, 0.000000E+00, 1.200000E-01, 0.000000E+00 > OBJ, SIZE, 0.000000E+00, 8.000000E-02, 1.000000E+00 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, cube3t > OBJ, GRID, N,N,N > OBJ, TYPE, INLET > OBJ, PRESSURE, 3.606 > OBJ, VELOCITY, 10. ,-10. ,0. > OBJ, TEMPERATURE, 700. > OBJ, INLET_FUEL, 0.1 > OBJ, INLET_MIXF, 0.1 > OBJ, KE_IN, 1.000000E-02 > OBJ, EP_IN, 9.400417E-02 > OBJ, T_EXT, 3.000000E+02 > OBJ, NAME, B8 > OBJ, POSITION, 5.000001E-01, 0.000000E+00, 4.000000E-01 > OBJ, SIZE, 1.000000E-01, 9.600000E-02, 6.000000E-01 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, cube14 > OBJ, GRID, N,N,N > OBJ, TYPE, BLOCKAGE > OBJ, MATERIAL, 102,BRICK at 20 deg c > OBJ, EMISSIVITY, 1. > OBJ, NAME, B9 > OBJ, POSITION, 7.999998E-01, 0.000000E+00, 0.000000E+00 > OBJ, SIZE, 1.000000E-01, 9.600000E-02, 6.000000E-01 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, cube14 > OBJ, GRID, N,N,N > OBJ, TYPE, BLOCKAGE > OBJ, MATERIAL, 102,BRICK at 20 deg c > OBJ, EMISSIVITY, 1. > OBJ, NAME, B19 > OBJ, POSITION, 0.000000E+00, 1.200000E-01, 2.800000E-01 > OBJ, SIZE, 1.999998E-02, 7.200000E-02, 1.000000E-01 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, port_vca > OBJ, ROTATION24, 9 > OBJ, TYPE, CELLTYPE > OBJ, NAME, B11 > OBJ, POSITION, 0.000000E+00, 1.200000E-01, 0.000000E+00 > OBJ, SIZE, 1.999998E-02, 7.200000E-02, 1.000000E-01 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, port_vca > OBJ, ROTATION24, 9 > OBJ, TYPE, CELLTYPE > OBJ, NAME, B12 > OBJ, POSITION, 0.000000E+00, 1.200000E-01, 6.000000E-01 > OBJ, SIZE, 1.999998E-02, 7.200000E-02, 1.000000E-01 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, port_vca > OBJ, ROTATION24, 9 > OBJ, TYPE, CELLTYPE > OBJ, NAME, B13 > OBJ, POSITION, 0.000000E+00, 1.200000E-01, 1.400000E-01 > OBJ, SIZE, 1.999998E-02, 7.200000E-02, 1.000000E-01 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, port_vca > OBJ, ROTATION24, 9 > OBJ, TYPE, CELLTYPE > OBJ, NAME, B14 > OBJ, POSITION, 0.000000E+00, 1.200000E-01, 7.799999E-01 > OBJ, SIZE, 1.999998E-02, 7.200000E-02, 1.000000E-01 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, port_vca > OBJ, ROTATION24, 9 > OBJ, TYPE, CELLTYPE > OBJ, NAME, B15 > OBJ, POSITION, 0.000000E+00, 1.200000E-01, 4.400001E-01 > OBJ, SIZE, 1.999998E-02, 7.200000E-02, 1.000000E-01 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, port_vca > OBJ, ROTATION24, 9 > OBJ, TYPE, CELLTYPE > OBJ, NAME, B16 > OBJ, POSITION, 9.880000E-01, 2.400000E-01, 2.000000E-01 > OBJ, SIZE, 1.200000E-02, 8.000000E-02, 6.000000E-01 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, port_vca > OBJ, ROTATION24, 21 > OBJ, TYPE, CELLTYPE > OBJ, NAME, B17 > OBJ, POSITION, 0.000000E+00, 0.000000E+00, 1.000000E+00 > OBJ, SIZE, 1.000000E+00, 3.200000E-01, 0.000000E+00 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, cube13 > OBJ, TYPE, PLATE > OBJ, SURF_HEAT, 0. ,0. > OBJ, PARA_HEAT, 1. ,1. ,0. > OBJ, T_EXT, 300. > OBJ, EMISSIVITY, 0.9 > OBJ, NAME, B18 > OBJ, POSITION, 0.000000E+00, 0.000000E+00, 0.000000E+00 > OBJ, SIZE, 1.000000E+00, 3.200000E-01, 0.000000E+00 > OBJ, ROT-MODE, OLD > OBJ, GEOMETRY, cube13 > OBJ, VISIBLE, NO > OBJ, TYPE, PLATE > OBJ, SURF_HEAT, 0. ,0. > OBJ, PARA_HEAT, 1. ,1. ,0. > OBJ, T_EXT, 300. > OBJ, EMISSIVITY, 0.9 DISTIL=T STOP inform7begin (stored var #an1 is anco(H1)) (stored var #ae1 is aeco(H1)) (stored var #ap1 is apco(H1)) (stored var #cr1 is corr(H1)) (stored var #rs1 is resi(H1)) (stored var #an3 is anco(t3)) (stored var #ae3 is aeco(t3)) (stored var #ap3 is apco(t3)) (stored var #cr3 is corr(t3)) (stored var #rs3 is resi(t3)) inform7end