TALK=T;RUN(1,1) DISPLAY Numerical Schemes validation example: 2-d x-y, Cartesian, steady, elliptic simulation The case considered is that of steady, incompressible, laminar recirculating flow inside a lid-driven cavity. The geometry is a 1m square cavity with no inflow or outflow. The flow is driven by as moving wall of -1m/s at the top of cavity. The Reynolds number based on cavity height is 1000. The calculation may be performed with any of the 16 convection schemes in PHOENICS, although here the case is set up to be run with one of 3 linear schemes or 2 non-linear schemes. ENDDIS PHOTON USE p 0.20443E+04 0.15633E+04 CR gr ou z 1;vec z 1 sh stream 2d z 1 -.113 0 10 stream 2d z 1 0. .235e-2 10 msg streamlines and vectors msg pressto end pause ENDUSE AUTOPLOT USE file phi 5 d 1 u1 x 11;plot;swap;scale;level x 0 msg horizontal velocity profile at x/h=0.5 msg press to end pause ENDUSE ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(YX LAMINAR WALL-DRIVEN CAVITY ) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 14 ************************************************************ Group 2. Time dependence STEADY = T ************************************************************ Group 3. X-Direction Grid Spacing CARTES = T NX = 21 XULAST =1. XFRAC(1)=0.018591 ;XFRAC(2)=0.049062 XFRAC(3)=0.086552 ;XFRAC(4)=0.129476 XFRAC(5)=0.176955 ;XFRAC(6)=0.228411 XFRAC(7)=0.283428 ;XFRAC(8)=0.341689 XFRAC(9)=0.402944 ;XFRAC(10)=0.466987 XFRAC(11)=0.533013 ;XFRAC(12)=0.597056 XFRAC(13)=0.658311 ;XFRAC(14)=0.716572 XFRAC(15)=0.771589 ;XFRAC(16)=0.823045 XFRAC(17)=0.870524 ;XFRAC(18)=0.913448 XFRAC(19)=0.950938 ;XFRAC(20)=0.981409 XFRAC(21)=1. ************************************************************ Group 4. Y-Direction Grid Spacing NY = 21 YVLAST =1. YFRAC(1)=0.018591 ;YFRAC(2)=0.049062 YFRAC(3)=0.086552 ;YFRAC(4)=0.129476 YFRAC(5)=0.176955 ;YFRAC(6)=0.228411 YFRAC(7)=0.283428 ;YFRAC(8)=0.341689 YFRAC(9)=0.402944 ;YFRAC(10)=0.466987 YFRAC(11)=0.533013 ;YFRAC(12)=0.597056 YFRAC(13)=0.658311 ;YFRAC(14)=0.716572 YFRAC(15)=0.771589 ;YFRAC(16)=0.823045 YFRAC(17)=0.870524 ;YFRAC(18)=0.913448 YFRAC(19)=0.950938 ;YFRAC(20)=0.981409 YFRAC(21)=1. ************************************************************ Group 5. Z-Direction Grid Spacing PARAB = F NZ = 1 ZWLAST =1. ZFRAC(1)=1. ************************************************************ Group 6. Body-Fitted Coordinates ************************************************************ Group 7. Variables: STOREd,SOLVEd,NAMEd ONEPHS = T NAME(1)=P1 ;NAME(3)=U1 NAME(5)=V1 * 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(U1,Y,Y,N,N,N,N) SOLUTN(V1,Y,Y,N,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(P1,Y,Y,Y,N,Y,Y) TERMS(U1,Y,Y,Y,Y,Y,Y) TERMS(V1,Y,Y,Y,Y,Y,Y) DIFCUT =0. ;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 =0. ;EL1 =0. TSURR =0. ;TEMP0 =0. ;PRESS0 =0. DVO1DT =0. ;DRH1DP =0. EMISS =0. ;SCATT =0. RADIA =0. ;RADIB =0. ENUL =1.0E-03 ;ENUT =0. PRNDTL(U1)=1. ;PRNDTL(V1)=1. PRT(U1)=1. ;PRT(V1)=1. CP1 =1. ;CP2 =1. ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initial field variables (PHIs) FIINIT(P1)=1.0E-10 ;FIINIT(U1)=1.0E-10 FIINIT(V1)=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(HOCS ,CELL , 0, 0, 0, 0, 0, 0, 1, 1) COVAL(HOCS ,U1 , FIXFLU , GRND1 ) COVAL(HOCS ,V1 , FIXFLU , GRND1 ) PATCH(SOUTH ,SWALL , 1, 21, 1, 1, 1, 1, 1, 1) COVAL(SOUTH ,U1 ,1. ,0. ) PATCH(MOVE ,NWALL , 1, 21, 21, 21, 1, 1, 1, 1) COVAL(MOVE ,U1 ,1. ,-1. ) PATCH(WEST ,WWALL , 1, 1, 1, 21, 1, 1, 1, 1) COVAL(WEST ,V1 ,1. ,0. ) PATCH(EAST ,EWALL , 21, 21, 1, 21, 1, 1, 1, 1) COVAL(EAST ,V1 ,1. ,0. ) PATCH(FIXPRESS,CELL , 10, 10, 10, 10, 1, 1, 1, 1) COVAL(FIXPRESS,P1 ,1. ,0. ) COVAL(FIXPRESS,U1 ,0. ,0. ) COVAL(FIXPRESS,V1 ,0. ,0. ) XCYCLE = F EGWF = T WALLCO = GRND2 ************************************************************ Group 14. Downstream Pressure For PARAB ************************************************************ Group 15. Terminate Sweeps LSWEEP = 3000 ;ISWC1 = 1 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1 SELREF = T RESFAC =1.0E-05 ************************************************************ Group 16. Terminate Iterations LITER(P1)=20 ;LITER(U1)=5 LITER(V1)=5 ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03 ENDIT(V1)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(P1,LINRLX,1.) RELAX(U1,FALSDT,0.238095) RELAX(V1,FALSDT,0.238095) OVRRLX =0. EXPERT = F ;NNORSL = F ************************************************************ Group 18. Limits VARMAX(P1)=1.0E+10 ;VARMIN(P1)=-1.0E+10 VARMAX(U1)=1.0E+06 ;VARMIN(U1)=-1.0E+06 VARMAX(V1)=1.0E+06 ;VARMIN(V1)=-1.0E+06 ************************************************************ Group 19. Data transmitted to GROUND PARSOL = F ISG62 = 1 SPEDAT(SET,SCHEME,INLCS003,I,3) SPEDAT(SET,SCHEME,INLCS005,I,3) 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(U1,Y,N,Y,Y,Y,Y) OUTPUT(V1,Y,N,Y,Y,Y,Y) ************************************************************ Group 22. Monitor Print-Out IXMON = 10 ;IYMON = 20 ;IZMON = 1 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 = 1 ;IXPRL = 10000 NYPRIN = -1 ;IYPRF = 1 ;IYPRL = 10000 IPLTF = 1 ;IPLTL = -1 ;NPLT = 10 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