TALK=T;RUN(1,1) PHOTON USE p msg Staggered velocities vectors set vec ref 0.3 gr ou z 1;vec z 1 sh msg Pressto continue pause vec off;red set vec comp UC1 VC1 - msg Co-located velocities vectors vec z 1 sh msg Press e to END ENDUSE DISPLAY This run analyses the flow in a cavity, the top wall of which moves with a constant velocity. The grid is uniform and flow Reynolds number equals 100. The UC1 and VC1 scalar variables have zero-slip boundary conditions and PLANT is used to set pressure gradient sources. So, these variables have the meanings of co-located cartesian velocities which are transported in the convection field formed by staggered components. CCV option of PHOENICS can be directly used for further details and comparisons. The example can also be treated as the technique for physically based interpolation of staggered velocities in the grid nodes. ENDDIS PLANTBEGIN ** Pressure gradient sources PATCH(DPDX1,CELL,2,NX-1,1,NY,1,1,1,1) VAL=AEAST*(WEST(P1)-EAST(P1))/2. COVAL(DPDX1,UC1,FIXFLU,GRND) PATCH(DPDX2,CELL,NX,NX,1,NY,1,1,1,1) VAL=AEAST*(WEST(P1)-P1) COVAL(DPDX2,UC1,FIXFLU,GRND) PATCH(DPDX3,CELL,1,1,1,NY,1,1,1,1) VAL=AEAST*(P1-EAST(P1)) COVAL(DPDX3,UC1,FIXFLU,GRND) PATCH(DPDY1,CELL,1,NX,2,NY-1,1,1,1,1) VAL=ANORTH*(SOUTH(P1)-NORTH(P1))/2. COVAL(DPDY1,VC1,FIXFLU,GRND) PATCH(DPDY2,CELL,1,NX,NY,NY,1,1,1,1) VAL=ANORTH*(SOUTH(P1)-P1) COVAL(DPDY2,VC1,FIXFLU,GRND) PATCH(DPDY3,CELL,1,NX,1,1,1,1,1,1) VAL=ANORTH*(P1-NORTH(P1)) COVAL(DPDY3,VC1,FIXFLU,GRND) PLANTEND ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT( CO-LOCATED VELOCITY CALCULATION:145 ) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 145 ************************************************************ Group 2. Time dependence STEADY = T ************************************************************ Group 3. X-Direction Grid Spacing CARTES = T NX = 10 XULAST =0.1 XFRAC(1)=0.1 ;XFRAC(2)=0.2 XFRAC(3)=0.3 ;XFRAC(4)=0.4 XFRAC(5)=0.5 ;XFRAC(6)=0.6 XFRAC(7)=0.7 ;XFRAC(8)=0.8 XFRAC(9)=0.9 ;XFRAC(10)=1. ************************************************************ Group 4. Y-Direction Grid Spacing NY = 10 YVLAST =0.1 YFRAC(1)=0.1 ;YFRAC(2)=0.2 YFRAC(3)=0.3 ;YFRAC(4)=0.4 YFRAC(5)=0.5 ;YFRAC(6)=0.6 YFRAC(7)=0.7 ;YFRAC(8)=0.8 YFRAC(9)=0.9 ;YFRAC(10)=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 ;NAME(149)=VC1 NAME(150)=UC1 * 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,Y) SOLUTN(V1,Y,Y,N,N,N,Y) SOLUTN(VC1,Y,Y,N,N,N,Y) SOLUTN(UC1,Y,Y,N,N,N,Y) ************************************************************ 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) TERMS(VC1,N,Y,Y,Y,N,Y) TERMS(UC1,N,Y,Y,Y,Y,Y) DIFCUT =0.5 ;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. PRNDTL(VC1)=1. ;PRNDTL(UC1)=1. PRT(U1)=1. ;PRT(V1)=1. PRT(VC1)=1. ;PRT(UC1)=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 ;FIINIT(VC1)=1.0E-10 FIINIT(UC1)=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(SOUTH ,SWALL , 1, 10, 1, 1, 1, 1, 1, 1) COVAL(SOUTH ,U1 ,1. ,0. ) COVAL(SOUTH ,UC1 ,1. ,0. ) PATCH(MOVING ,NWALL , 1, 10, 10, 10, 1, 1, 1, 1) COVAL(MOVING ,U1 ,1. ,1. ) COVAL(MOVING ,UC1 ,1. ,1. ) PATCH(WEST ,WWALL , 1, 1, 1, 10, 1, 1, 1, 1) COVAL(WEST ,V1 ,1. ,0. ) COVAL(WEST ,VC1 ,1. ,0. ) PATCH(EAST ,EWALL , 10, 10, 1, 10, 1, 1, 1, 1) COVAL(EAST ,V1 ,1. ,0. ) COVAL(EAST ,VC1 ,1. ,0. ) PATCH(RELIEF ,CELL , 5, 5, 5, 5, 1, 1, 1, 1) COVAL(RELIEF ,P1 ,1. ,0. ) PATCH(DPDX1 ,CELL , 2, 9, 1, 10, 1, 1, 1, 1) COVAL(DPDX1 ,UC1 , FIXFLU , GRND ) PATCH(DPDX2 ,CELL , 10, 10, 1, 10, 1, 1, 1, 1) COVAL(DPDX2 ,UC1 , FIXFLU , GRND ) PATCH(DPDX3 ,CELL , 1, 1, 1, 10, 1, 1, 1, 1) COVAL(DPDX3 ,UC1 , FIXFLU , GRND ) PATCH(DPDY1 ,CELL , 1, 10, 2, 9, 1, 1, 1, 1) COVAL(DPDY1 ,VC1 , FIXFLU , GRND ) PATCH(DPDY2 ,CELL , 1, 10, 10, 10, 1, 1, 1, 1) COVAL(DPDY2 ,VC1 , FIXFLU , GRND ) PATCH(DPDY3 ,CELL , 1, 10, 1, 1, 1, 1, 1, 1) COVAL(DPDY3 ,VC1 , FIXFLU , GRND ) 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-05 ************************************************************ Group 16. Terminate Iterations LITER(P1)=20 ;LITER(U1)=10 LITER(V1)=10 ;LITER(VC1)=20 LITER(UC1)=20 ENDIT(P1)=1.0E-03 ;ENDIT(U1)=1.0E-03 ENDIT(V1)=1.0E-03 ;ENDIT(VC1)=1.0E-03 ENDIT(UC1)=1.0E-03 ************************************************************ Group 17. Relaxation RELAX(P1,LINRLX,1.) RELAX(U1,FALSDT,1.) RELAX(V1,FALSDT,1.) RELAX(VC1,FALSDT,1.) RELAX(UC1,FALSDT,1.) 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 VARMAX(VC1)=1.0E+10 ;VARMIN(VC1)=-1.0E+10 VARMAX(UC1)=1.0E+10 ;VARMIN(UC1)=-1.0E+10 ************************************************************ Group 19. Data transmitted to GROUND NAMSAT =MOSG PARSOL = F ISG62 = 1 SPEDAT(SET,GXMONI,PLOTALL,L,T) ************************************************************ Group 20. Preliminary Printout DISTIL = T ;NULLPR = F NDST = 0 DSTTOL =1.0E-02 EX(P1)=0.02713 ;EX(U1)=0.1279 EX(V1)=0.1062 ;EX(VC1)=0.09647 EX(UC1)=0.1176 ************************************************************ 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) OUTPUT(VC1,Y,N,Y,Y,Y,Y) OUTPUT(UC1,Y,N,Y,Y,Y,Y) ************************************************************ Group 22. Monitor Print-Out IXMON = 5 ;IYMON = 9 ;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 = -1 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