TALK=T;RUN(1,1) DISPLAY This case concerns simple 2D flow with additional pressure drop, introduced into the flow by means of a PATCH and COVAL statement for a velocity component. That type of patches can be used to model flow through a media with a local resistance to the flow. The main objective of the test case is to demonstrate the new feature implemented in CCM, as well as MBFGE method, which enables to introduce the pressure drop in the same way as for staggered algorithm (LCCM=F). User is advised to study the way in which a pressure drop is introduced in the Q1 (ITEST= 1 or ITEST= 2) and investigate this feature by modifying the direction of the flow on vertical by setting LRTFL to F. ------------------------------------------------------------ ENDDIS PHOTON USE p ; ; ; ; ; msg Computational Domain: gr k 1 msg Press Any Key to Continue... pause cl msg Velocity Vectors: vec k 1 sh msg Press Any Key to Continue... pause cl msg Contours of Pressure: con p1 k 1 fi;0.005 msg Press Eto exit PHOTON ... ENDUSE ************************************************************ Group 1. Run Title and Number ************************************************************ ************************************************************ TEXT(CCM : Pressure Drop (X-Y). ) ************************************************************ ************************************************************ IRUNN = 1 ;LIBREF = 150 ************************************************************ Group 2. Time dependence STEADY = T ************************************************************ Group 3. X-Direction Grid Spacing CARTES = T NX = 10 XULAST =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 = 15 YVLAST =1. YFRAC(1)=0.066667 ;YFRAC(2)=0.133333 YFRAC(3)=0.2 ;YFRAC(4)=0.266667 YFRAC(5)=0.333333 ;YFRAC(6)=0.4 YFRAC(7)=0.466667 ;YFRAC(8)=0.533333 YFRAC(9)=0.6 ;YFRAC(10)=0.666667 YFRAC(11)=0.733333 ;YFRAC(12)=0.8 YFRAC(13)=0.866667 ;YFRAC(14)=0.933333 YFRAC(15)=1. ************************************************************ Group 5. Z-Direction Grid Spacing PARAB = F NZ = 1 ZWLAST =1. ZFRAC(1)=1. ************************************************************ Group 6. Body-Fitted Coordinates CCM = T ************************************************************ 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,Y,N,N,Y) SOLUTN(UC1,Y,Y,Y,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,N,N,N,N,N,N) TERMS(V1,N,N,N,N,N,N) 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-05 ;ENUT =0. PRNDTL(VC1)=1. ;PRNDTL(UC1)=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-05 FIINIT(UC1)=1.0E-03 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(IN ,WEST , 1, 1, 1, 15, 1, 1, 1, 1) COVAL(IN ,P1 , FIXFLU ,1. ) COVAL(IN ,U1 ,0. ,0. ) COVAL(IN ,V1 ,0. ,0. ) COVAL(IN ,VC1 ,0. ,0. ) COVAL(IN ,UC1 ,0. ,1. ) PATCH(OUT ,EAST , 10, 10, 1, 15, 1, 1, 1, 1) COVAL(OUT ,P1 ,10. ,0. ) PATCH(PDROP ,CELL , 5, 5, 1, 15, 1, 1, 1, 1) COVAL(PDROP ,UC1 ,2. ,0. ) XCYCLE = F EGWF = T WALLCO = GRND2 ************************************************************ Group 14. Downstream Pressure For PARAB ************************************************************ Group 15. Terminate Sweeps LSWEEP = 100 ;ISWC1 = 1 LITHYD = 1 ;LITFLX = 1 ;LITC = 1 ;ITHC1 = 1 SELREF = T RESFAC =1.0E-03 ************************************************************ 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,0.5) 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 PARSOL = F CONWIZ = T ISG62 = 1 CSG3 ='LCRU' 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) OUTPUT(VC1,Y,N,Y,Y,Y,Y) OUTPUT(UC1,Y,N,Y,Y,Y,Y) ************************************************************ Group 22. Monitor Print-Out IXMON = 6 ;IYMON = 8 ;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