TALK=T;RUN(1,1) PHOTON USE p parphi msg TURBULENT ROUND JET msg msg Velocity vectors: vec x 1 sh msg - msg Pressto continue pause vec off;red msg Axial velocity contours: con wcrt x 1 fi; 0.01 msg - msg Press to continue pause con off;red msg Temperature contours: con temp x 1 fi;0.01 msg msg Press to continue pause con off;red msg eddy-viscosity (enut) contours: con enut x 1 fi;0.01 msg msg Press e to END enduse DISPLAY The axi-symmetrical turbulent jet in stagnant surroundings is considered. This becomes "self-similar" after an initial development length, with the centre-line velocity and temperature difference varying as the reciprocal of the longitudinal distance. In case 153, the Prandtl Mixing-Length model is used, with the mixing length proportional to the distance across the jet. In case 154, the Prandtl Energy model is used, with the same presumption about the length scale. In case 155, the k-epsilon model is used, so that no length-scale presumption is needed. A PHOTON USE file is supplied ENDDIS ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(Round Jet;Mixing Length Model;Para ) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 14 ************************************************************ Group 2. Time dependence STEADY = T ************************************************************ Group 3. X-Direction Grid Spacing CARTES = F NX = 1 XULAST =0.1 XFRAC(1)=1. ************************************************************ Group 4. Y-Direction Grid Spacing NY = 20 YVLAST =0.1 AZYV =1. ;AZRI =0. ;AZAL =0. Method of pairs used for grid setting. YFRAC(2)=0.05 ************************************************************ Group 5. Z-Direction Grid Spacing PARAB = T NZ = 100 ZWADD =0.400962 ZWLAST =1. AZDZ = GRND2 ZFRAC(1)=1. ************************************************************ Group 6. Body-Fitted Coordinates ************************************************************ Group 7. Variables: STOREd,SOLVEd,NAMEd ONEPHS = T NAME(1)=P1 ;NAME(5)=V1 NAME(7)=W1 ;NAME(14)=TEMP NAME(149)=LEN1 ;NAME(150)=ENUT * 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(V1,Y,Y,N,N,N,Y) SOLUTN(W1,Y,Y,N,N,N,Y) SOLUTN(TEMP,Y,Y,N,N,N,Y) SOLUTN(LEN1,Y,N,N,N,N,Y) SOLUTN(ENUT,Y,N,N,N,N,Y) VIST = 150 LEN1 = 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(V1,Y,Y,Y,Y,Y,Y) TERMS(W1,Y,Y,Y,Y,Y,Y) TERMS(TEMP,N,Y,Y,Y,Y,Y) DIFCUT =0. ;ZDIFAC =1. GALA = F ;ADDDIF = F NEWENT = T 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 = GRND6 TSURR =0. ;TEMP0 =0. ;PRESS0 =0. DVO1DT =0. ;DRH1DP =0. EMISS =0. ;SCATT =0. RADIA =0. ;RADIB =0. EL1A =0.05 ;EL1B =0.075 ;EL1C =1.0E-02 EL1D =0. ;EL1E =10. ENUL =2.0E-06 ;ENUT = GRND2 ENUTA =0. ;ENUTB =0. ;ENUTC =0. IENUTA = 0 PRNDTL(V1)=1. ;PRNDTL(W1)=1. PRNDTL(TEMP)=1. PRT(V1)=1. ;PRT(W1)=1. PRT(TEMP)=0.7 CP1 =1. ;CP2 =1. ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initial field variables (PHIs) FIINIT(P1)=1.0E-10 ;FIINIT(V1)=1.0E-10 FIINIT(W1)=1.0E-10 ;FIINIT(TEMP)=1.0E-10 FIINIT(LEN1)=1.0E-10 ;FIINIT(ENUT)=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(HIGHY ,NORTH , 1, 1, 20, 20, 1, 100, 1, 1) COVAL(HIGHY ,P1 ,1.0E+04 ,0. ) COVAL(HIGHY ,V1 ,0. ,0. ) COVAL(HIGHY ,W1 ,0. ,0. ) COVAL(HIGHY ,TEMP,0. ,0. ) PATCH(NOZZLE ,LOW , 1, 1, 1, 10, 1, 1, 1, 1) COVAL(NOZZLE ,P1 , FIXFLU ,10. ) COVAL(NOZZLE ,W1 ,0. ,10. ) COVAL(NOZZLE ,TEMP,0. ,1. ) XCYCLE = F EGWF = T WALLCO = GRND2 ************************************************************ Group 14. Downstream Pressure For PARAB IPARAB = 1 AZPH =0. ;PBAR =0. ************************************************************ Group 15. Terminate Sweeps LSWEEP = 1 ;ISWC1 = 1 LITHYD = 25 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1 SELREF = T RESFAC =1.0E-02 ************************************************************ Group 16. Terminate Iterations LITER(P1)=20 ;LITER(V1)=10 LITER(W1)=10 ;LITER(TEMP)=20 ENDIT(P1)=1.0E-03 ;ENDIT(V1)=1.0E-03 ENDIT(W1)=1.0E-03 ;ENDIT(TEMP)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(P1,LINRLX,1.) RELAX(V1,FALSDT,10.) RELAX(W1,FALSDT,10.) RELAX(TEMP,FALSDT,10.) RELAX(LEN1,LINRLX,1.) RELAX(ENUT,LINRLX,1.) OVRRLX =0. EXPERT = F ;NNORSL = F ************************************************************ Group 18. Limits VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-1.0E+10 VARMAX(V1)=1000. ;VARMIN(V1)=-1000. VARMAX(W1)=1.0E+06 ;VARMIN(W1)=-1.0E+06 VARMAX(TEMP)=1.0E+10 ;VARMIN(TEMP)=-1.0E+10 VARMAX(LEN1)=1.0E+10 ;VARMIN(LEN1)=-1.0E+10 VARMAX(ENUT)=1.0E+10 ;VARMIN(ENUT)=-1.0E+10 ************************************************************ Group 19. Data transmitted to GROUND DWDY = T PARSOL = F DZW1 =0.1 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(P1,Y,N,Y,Y,Y,Y) OUTPUT(V1,Y,N,Y,Y,Y,Y) OUTPUT(W1,Y,N,Y,Y,Y,Y) OUTPUT(TEMP,Y,N,Y,Y,Y,Y) OUTPUT(LEN1,Y,N,Y,N,N,N) OUTPUT(ENUT,Y,N,Y,N,N,N) ************************************************************ Group 22. Monitor Print-Out IXMON = 1 ;IYMON = 10 ;IZMON = 50 NPRMON = 100000 ;NPRMNT = 1 ;TSTSWP = -5 UWATCH = T ;USTEER = T HIGHLO = F ************************************************************ Group 23.Field Print-Out & Plot Control NPRINT = 100000 ;NUMCLS = 5 NYPRIN = 2 ;IYPRF = 1 ;IYPRL = 10000 NZPRIN = 100 ;IZPRF = 1 ;IZPRL = 10000 IPLTF = 1 ;IPLTL = 25 ;NPLT = 1 ISWPRF = 1 ;ISWPRL = 100000 ITABL = 1 ;IPROF = 1 ABSIZ =0.5 ;ORSIZ =0.4 NTZPRF = 1 ;NCOLPF = 50 ICHR = 2 ;NCOLCO = 45 ;NROWCO = 20 PATCH(IZEQNZ ,PROFIL, 1, 1, 1, 20, 100, 100, 1, 1) PLOT(IZEQNZ ,W1 ,0. ,0. ) PLOT(IZEQNZ ,TEMP,0. ,0. ) PLOT(IZEQNZ ,ENUT,0. ,0. ) ************************************************************ Group 24. Dumps For Restarts SAVE = T ;NOWIPE = F NSAVE =CHAM IDISPA = 1 ;IDISPB = 0 ;IDISPC = 0 STOP