TALK=T;RUN(1,1) PHOTON USE AUTOPLOT file phi 5 cl da 1 temp scale colf 1 msg temp of gas - red msg Pressto continue pause cl da 1 w1 col3 1 msg gas velocity - blue msg Press to continue pause cl da 1 fuel da 1 mixf scale col3 1 colf 2 msg volume fraction of methane - blue msg mixture fraction - red msg Press to end pause end enduse DISPLAY The problem considered is one dimensional and concerns the calculation of thermal nox emissions. A two-step approach is used whereby the first step involves the main exothermic reaction of methane in air, and the second involves the solution of the Zeldovich reaction scheme for the formation of the major nitric oxide: nitrogen oxide, NO. The first PHOENICS calculation considers the methane combustion only, so that the logical variable NOXCAL=F. The second and final PHOENICS calculation sets NOXCAL=T which deactivates the solution of all dependent variables excepting those involved in the nox chemistry. ENDDIS noxdbegin ns 7 nr 3 jxdbck 1 jydbck 1 jzdbck 1 jsdbck 30 gn2ox 0.767 gn2pr 0.725 gco2pr 0.151 gh2opr 0.124 crkbug t dbgnox t noxdend ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT( ) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 14 ************************************************************ Group 2. Time dependence STEADY = T ************************************************************ 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 = 34 ZWLAST =34. Method of pairs used for grid setting. ZFRAC(1)=-34. ;ZFRAC(2)=0.029412 ************************************************************ Group 6. Body-Fitted Coordinates ************************************************************ Group 7. Variables: STOREd,SOLVEd,NAMEd ONEPHS = T NAME(1)=P1 ;NAME(7)=W1 NAME(14)=H1 ;NAME(136)=NOSR NAME(137)=PRDT ;NAME(138)=CRKT NAME(139)=XO2 ;NAME(140)=XOH NAME(141)=XO ;NAME(142)=XH NAME(143)=XN ;NAME(144)=XNO NAME(145)=FUEL ;NAME(146)=PROD NAME(147)=OXID ;NAME(148)=RHO1 NAME(149)=TMP1 ;NAME(150)=MIXF * 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,Y,N,N,Y) SOLUTN(W1,Y,Y,N,N,N,Y) SOLUTN(H1,Y,Y,N,N,N,Y) SOLUTN(NOSR,Y,N,N,N,N,Y) SOLUTN(PRDT,Y,N,N,N,N,Y) SOLUTN(CRKT,Y,N,N,N,N,Y) SOLUTN(XO2,Y,N,N,N,N,Y) SOLUTN(XOH,Y,N,N,N,N,Y) SOLUTN(XO,Y,N,N,N,N,Y) SOLUTN(XH,Y,N,N,N,N,Y) SOLUTN(XN,Y,N,N,N,N,Y) SOLUTN(XNO,Y,N,N,N,N,Y) SOLUTN(FUEL,Y,N,N,N,N,Y) SOLUTN(PROD,Y,N,N,N,N,Y) SOLUTN(OXID,Y,N,N,N,N,Y) SOLUTN(RHO1,Y,N,N,N,N,Y) SOLUTN(TMP1,Y,N,N,N,N,Y) SOLUTN(MIXF,Y,Y,N,N,N,Y) DEN1 = 148 TEMP1 = 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(W1,Y,Y,Y,Y,Y,Y) TERMS(H1,N,Y,Y,N,Y,N) TERMS(MIXF,N,Y,Y,Y,Y,Y) DIFCUT =0.5 ;ZDIFAC =1. GALA = F ;ADDDIF = F NEWRH1 = T ISOLX = -1 ;ISOLY = -1 ;ISOLZ = -1 DENPCO = T ************************************************************ Group 9. Properties used if PRPS is not stored, and where PRPS = -1.0 if it is! RHO1 = GRND6 ;TMP1 = GRND7 EL1 =0. TSURR =0. ;TEMP0 =0. PRESS0 =1.0E+05 DVO1DT =0. ;DRH1DP =0. RHO1A =16.04303 ;RHO1B =28.941999 RHO1C =29.189119 TMP1A =1500. ;TMP1B =1500. TMP1C =1500. TMP2A =0.054825 ;TMP2B =4.9E+07 TMP2C =0. EMISS =0. ;SCATT =0. RADIA =0. ;RADIB =0. ENUL =1.0E-05 ;ENUT =0. PRNDTL(W1)=1. ;PRNDTL(H1)=1. PRNDTL(MIXF)=1. PRT(W1)=1. ;PRT(H1)=1. PRT(MIXF)=1. CP1 = GRND10 ;CP2 =1. CP1A =1500. ;CP1B =1500. CP1C =1500. ;CP1D =0. ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initial field variables (PHIs) FIINIT(P1)=1.0E-10 ;FIINIT(W1)=10. FIINIT(H1)=4.94335E+07 ;FIINIT(NOSR)=1.0E-10 FIINIT(PRDT)=0. ;FIINIT(CRKT)=0. FIINIT(XO2)=0. ;FIINIT(XOH)=0. FIINIT(XO)=0. ;FIINIT(XH)=0. FIINIT(XN)=0. ;FIINIT(XNO)=0. FIINIT(FUEL)=1.0E-10 ;FIINIT(PROD)=1.0E-10 FIINIT(OXID)=1.0E-10 ;FIINIT(RHO1)=1.0E-10 FIINIT(TMP1)=1.0E-10 ;FIINIT(MIXF)=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(INLETF ,LOW , 1, 1, 1, 1, 1, 1, 1, 1) COVAL(INLETF ,P1 , FIXFLU ,6.676956 ) COVAL(INLETF ,W1 ,0. ,10. ) COVAL(INLETF ,H1 ,0. ,4.94335E+07 ) COVAL(INLETF ,MIXF,0. ,1. ) PATCH(INLETA ,NORTH , 1, 1, 1, 1, 1, 34, 1, 1) COVAL(INLETA ,P1 , FIXFLU ,3.72417 ) COVAL(INLETA ,W1 ,0. ,8.558566 ) COVAL(INLETA ,H1 ,0. ,1.2E+06 ) COVAL(INLETA ,MIXF,0. ,0. ) PATCH(OUTLET ,CELL , 1, 1, 1, 1, 34, 34, 1, 1) COVAL(OUTLET ,P1 ,1. ,0. ) COVAL(OUTLET ,H1 ,0. , SAME ) COVAL(OUTLET ,FUEL,0. , SAME ) COVAL(OUTLET ,MIXF,0. , SAME ) 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-04 ************************************************************ Group 16. Terminate Iterations LITER(P1)=25 ;LITER(W1)=10 LITER(H1)=20 ;LITER(MIXF)=20 ENDIT(P1)=1.0E-03 ;ENDIT(W1)=1.0E-03 ENDIT(H1)=1.0E-03 ;ENDIT(MIXF)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(P1,LINRLX,1.) RELAX(W1,FALSDT,0.1) RELAX(H1,FALSDT,1.0E+04) RELAX(NOSR,LINRLX,1.) RELAX(PRDT,LINRLX,1.) RELAX(CRKT,LINRLX,1.) RELAX(XO2,LINRLX,1.) RELAX(XOH,LINRLX,1.) RELAX(XO,LINRLX,1.) RELAX(XH,LINRLX,1.) RELAX(XN,LINRLX,1.) RELAX(XNO,LINRLX,0.025) RELAX(FUEL,LINRLX,1.) RELAX(PROD,LINRLX,1.) RELAX(OXID,LINRLX,1.) RELAX(RHO1,LINRLX,0.1) RELAX(TMP1,LINRLX,1.) RELAX(MIXF,FALSDT,1.0E+04) OVRRLX =0. EXPERT = F ;NNORSL = F ************************************************************ Group 18. Limits VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-5.0E+04 VARMAX(W1)=1.0E+06 ;VARMIN(W1)=-1.0E+06 VARMAX(H1)=1.0E+10 ;VARMIN(H1)=-1.0E+10 VARMAX(NOSR)=1.0E+10 ;VARMIN(NOSR)=-1.0E+10 VARMAX(PRDT)=1.0E+10 ;VARMIN(PRDT)=-1.0E+10 VARMAX(CRKT)=1.0E+10 ;VARMIN(CRKT)=-1.0E+10 VARMAX(XO2)=1.0E+10 ;VARMIN(XO2)=-1.0E+10 VARMAX(XOH)=1.0E+10 ;VARMIN(XOH)=-1.0E+10 VARMAX(XO)=1.0E+10 ;VARMIN(XO)=-1.0E+10 VARMAX(XH)=1.0E+10 ;VARMIN(XH)=-1.0E+10 VARMAX(XN)=1. ;VARMIN(XN)=0. VARMAX(XNO)=1. ;VARMIN(XNO)=0. VARMAX(FUEL)=1. ;VARMIN(FUEL)=0. VARMAX(PROD)=1. ;VARMIN(PROD)=0. VARMAX(OXID)=1. ;VARMIN(OXID)=0. VARMAX(RHO1)=10. ;VARMIN(RHO1)=1.0E-02 VARMAX(TMP1)=4000. ;VARMIN(TMP1)=289. VARMAX(MIXF)=1. ;VARMIN(MIXF)=0. ************************************************************ 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(W1,Y,N,Y,Y,Y,Y) OUTPUT(H1,Y,N,Y,Y,Y,Y) OUTPUT(NOSR,N,N,N,N,N,N) OUTPUT(PRDT,N,N,N,N,N,N) OUTPUT(CRKT,N,N,N,N,N,N) OUTPUT(XO2,N,N,N,N,N,N) OUTPUT(XOH,N,N,N,N,N,N) OUTPUT(XO,N,N,N,N,N,N) OUTPUT(XH,N,N,N,N,N,N) OUTPUT(XN,N,N,N,N,N,N) OUTPUT(XNO,N,N,N,N,N,N) OUTPUT(FUEL,Y,N,Y,N,N,N) OUTPUT(PROD,Y,N,Y,N,N,N) OUTPUT(OXID,Y,N,Y,N,N,N) OUTPUT(RHO1,Y,N,Y,N,N,N) OUTPUT(TMP1,Y,N,Y,N,N,N) OUTPUT(MIXF,Y,N,Y,Y,Y,Y) ************************************************************ Group 22. Monitor Print-Out IXMON = 1 ;IYMON = 1 ;IZMON = 12 NPRMON = 1 ;NPRMNT = 1 ;TSTSWP = -1 UWATCH = T ;USTEER = T HIGHLO = F ************************************************************ Group 23.Field Print-Out & Plot Control NPRINT = 50 ;NUMCLS = 5 NZPRIN = 1 ;IZPRF = 1 ;IZPRL = 10000 XZPR = F ;YZPR = T IPLTF = 1 ;IPLTL = 50 ;NPLT = 5 ISWPRF = 1 ;ISWPRL = 100000 ITABL = 3 ;IPROF = 1 ABSIZ =0.5 ;ORSIZ =0.4 NTZPRF = 1 ;NCOLPF = 50 ICHR = 2 ;NCOLCO = 45 ;NROWCO = 20 No PATCHes yet used for this Group ************************************************************ Group 24. Dumps For Restarts SAVE = T ;NOWIPE = F NSAVE =CHAM STOP