TALK=T;RUN(1,1) PHOTON USE p; parphi;;; msg PLANE JET msg msg longitudinal-velocity contours and vectors msg - msg Pressto continue gr ou x 1;con wcrt x 1 fi;0.2;vec x 1;pause;vec off;con off;red msg Temperature contours: con temp x 1 fi;0.2; pause; con off;red msg Eddy-viscosity contours: con enut x 1 fi;0.2 msg - msg Press e to END enduse DISPLAY A free turbulent plane jet is formed when fluid emerges steadily from a wide slot into a reservoir of the same fluid at rest. Downstream of a 'development length', of about 8 slot widths, the flow becomes self-similar. In the self-similar region of the jet, both the velocity and temperature half-widths vary in proportion to z, and the centre- line velocity and temperature excess decay as z**(-0.5). The calculations are started at z = 0, where the velocity is supposed to have a "top-hat" shape, with a uniform value from y = 0 to y = half the slot width, and a much smaller value for larger values of y. The grid width and forward step are set to increase linearly with z. ENDDIS DISPLAY As for case 150, but with the Prandtl 1-equation model. ENDDIS ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(Plane Jet;K-L Turbul Model;Para ) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 150 ************************************************************ 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 = 20 YVLAST =0.1 AZYV =1. ;AZRI =0. ;AZAL =0. Method of pairs used for grid setting. YFRAC(1)=-20. ;YFRAC(2)=0.05 ************************************************************ Group 5. Z-Direction Grid Spacing PARAB = T NZ = 100 ZWADD =0.333333 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(12)=KE 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(KE,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(KE,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 =0.07 ;EL1B =0.1 ;EL1C =1.0E-02 EL1D =0. ;EL1E =10. ENUL =4.0E-06 ;ENUT = GRND3 ENUTA =0. ;ENUTB =0. ;ENUTC =0. IENUTA = 0 PRNDTL(V1)=1. ;PRNDTL(W1)=1. PRNDTL(KE)=1. ;PRNDTL(TEMP)=1. PRT(V1)=1. ;PRT(W1)=1. PRT(KE)=1. ;PRT(TEMP)=0.5 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(KE)=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 , FIXVAL ,0. ) COVAL(HIGHY ,V1 ,0. ,0. ) COVAL(HIGHY ,W1 ,0. ,0. ) COVAL(HIGHY ,KE ,0. ,1.0E-05 ) COVAL(HIGHY ,TEMP,0. ,0. ) PATCH(SLOT ,LOW , 1, 1, 1, 10, 1, 1, 1, 1) COVAL(SLOT ,P1 , FIXFLU ,10. ) COVAL(SLOT ,W1 ,0. ,10. ) COVAL(SLOT ,KE ,0. ,1.0E-02 ) COVAL(SLOT ,TEMP,0. ,1. ) PATCH(OUTSIDE ,LOW , 1, 1, 11, 20, 1, 1, 1, 1) COVAL(OUTSIDE ,P1 , FIXFLU ,1.0E-02 ) COVAL(OUTSIDE ,W1 ,0. ,1.0E-02 ) COVAL(OUTSIDE ,KE ,0. ,1.0E-05 ) COVAL(OUTSIDE ,TEMP,0. ,1. ) PATCH(KESO ,PHASEM, 1, 1, 1, 20, 1, 100, 1, 1) COVAL(KESO ,KE , GRND4 , GRND4 ) 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 = 30 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1 SELREF = T RESFAC =1.0E-05 ************************************************************ Group 16. Terminate Iterations LITER(P1)=20 ;LITER(V1)=10 LITER(W1)=10 ;LITER(KE)=20 LITER(TEMP)=20 ENDIT(P1)=1.0E-03 ;ENDIT(V1)=1.0E-03 ENDIT(W1)=1.0E-03 ;ENDIT(KE)=1.0E-03 ENDIT(TEMP)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(P1,LINRLX,1.) RELAX(V1,FALSDT,5.0E-03) RELAX(W1,FALSDT,0.1) RELAX(KE,LINRLX,0.5) RELAX(TEMP,FALSDT,1.0E+09) RELAX(LEN1,LINRLX,1.) RELAX(ENUT,LINRLX,1.) KELIN = 0 OVRRLX =0. EXPERT = F ;NNORSL = F ************************************************************ Group 18. Limits VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-1.0E+10 VARMAX(V1)=1.0E+06 ;VARMIN(V1)=-1.0E+06 VARMAX(W1)=1.0E+06 ;VARMIN(W1)=-1.0E+06 VARMAX(KE)=1.0E+10 ;VARMIN(KE)=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,Y,Y,Y,Y,Y) OUTPUT(V1,Y,Y,Y,Y,Y,Y) OUTPUT(W1,Y,Y,Y,Y,Y,Y) OUTPUT(KE,Y,Y,Y,N,Y,Y) OUTPUT(TEMP,Y,Y,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 = 1 ;IZMON = 10 NPRMON = 100000 ;NPRMNT = 1 ;TSTSWP = -5 UWATCH = T ;USTEER = T HIGHLO = F ************************************************************ Group 23.Field Print-Out & Plot Control NPRINT = 100000 ;NUMCLS = 5 NYPRIN = -1 ;IYPRF = 1 ;IYPRL = 10000 NZPRIN = 100 ;IZPRF = 1 ;IZPRL = 10000 IPLTF = 1 ;IPLTL = 30 ;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 ,KE ,0. ,0. ) PLOT(IZEQNZ ,TEMP,0. ,0. ) PLOT(IZEQNZ ,ENUT,0. ,0. ) PATCH(IYEQ1 ,PROFIL, 1, 1, 1, 1, 1, 100, 1, 1) PLOT(IYEQ1 ,W1 ,0. ,0. ) PLOT(IYEQ1 ,TEMP,0. ,0. ) PLOT(IYEQ1 ,ENUT,0. ,0. ) ************************************************************ Group 24. Dumps For Restarts SAVE = T ;NOWIPE = F NSAVE =CHAM IDISPA = 5 ;IDISPB = 1 ;IDISPC = 100 STOP