TALK=T;RUN( 1, 1) ************************************************************ Q1 created by VDI menu, Version 3.5, Date 31/05/02 CPVNAM=VDI;SPPNAM=HOTBOX ************************************************************ Echo DISPLAY / USE settings DISPLAY Library case H104: SYSTEM CURVE CALCULATIONS This case is simple three-dimensional forced flow through a box. The model simulates fan induced flow around a PCB with two chips dissipating heat. LVEL turbulence model, specially designed for the types of flows encountered in electronics equipment is employed. Another special feature of HotBox, calculation of a system curve is active. At the end of the run use both PHOTON and AUTOPLOT (if available) to see results. AUTOPLOT will plot data from the HOTDAT file showing convergence and converged points on the system curve. (Use PHOTON to display results. Enter USE Q1 in PHOTON command mode, or create a file called U, which contains the one line: USE Q1 before typing RUNPHO.) ENDDIS AUTOPLOT USE file hotdat 2 cl da 1 iswp flrt plot msg msg msg X axis - Sweep Number, Y axis - System Flow rate msg Press return to plot system pressure drop pause cl da 1 ISWP SDP PLOT msg msg msg X axis - Sweep Number, Y axis - System Pressure Drop msg Press return to plot system curve pause cl da 1 flrt sdp blb2 msg msg msg X axis - System Flow rate, Y axis - System Pressure Drop msg Type E to end ENDUSE PHOTON USE p;;;; use patgeo msg Geometry of the problem msg use hotspot msg Press return to plot temperature contours pause cont tem1 y 6 fil;.001 msg msg Press return to plot velocity field pause vec z 1 sh vec x 5 sh msg msg Type E to end ENDUSE ************************************************************ IRUNN = 1 ;LIBREF = 104 ************************************************************ Group 1. Run Title TEXT(System curve calculation: H104 ) ************************************************************ Group 2. Transience STEADY = T ************************************************************ Groups 3, 4, 5 Grid Information * Overall number of cells, RSET(M,NX,NY,NZ,tolerance) RSET(M,10,10,10) ************************************************************ Group 6. Body-Fitted coordinates ************************************************************ Group 7. Variables: STOREd,SOLVEd,NAMEd ONEPHS = T * Non-default variable names NAME( 46) =NPOR ; NAME( 47) =BLOK NAME( 48) =PRPS ; NAME( 49) =DEN1 NAME( 50) =TEM1 ; NAME(150) =WDIS * Solved variables list SOLVE(P1 ,U1 ,V1 ,W1 ,TEM1) * Stored variables list STORE(WDIS,DEN1,PRPS,BLOK,NPOR) * Additional solver options SOLUTN(P1 ,Y,Y,Y,N,N,N) SOLUTN(TEM1,Y,Y,Y,N,N,Y) IVARBK = -1 ;ISOLBK = 1 TURMOD(LVEL) ************************************************************ Group 8. Terms & Devices ISOLX = 0 ;ISOLY = 0 ;ISOLZ = 0 ************************************************************ Group 9. Properties PRESS0 = 1.000000E+05 ;TEMP0 = 2.730000E+02 SETPRPS(1, 2) DRH1DP = GRND5 DVO1DT = 3.330000E-03 PRNDTL(TEM1) = -2.630000E-02 EMISS = 0.000000E+00 ;SCATT = 0.000000E+00 ************************************************************ Group 10.Inter-Phase Transfer Processes ************************************************************ Group 11.Initialise Var/Porosity Fields FIINIT(NPOR) = 1.000000E+00 ;FIINIT(BLOK) = 1.000000E+00 FIINIT(PRPS) = -1.000000E+00 ;FIINIT(DEN1) = 1.001000E-10 FIINIT(TEM1) = 2.000000E+01 ;FIINIT(LTLS) = 1.001000E-10 FIINIT(WDIS) = 5.000000E-02 No PATCHes used for this Group INIADD = F ************************************************************ Group 12. Convection and diffusion adjustments No PATCHes used for this Group ************************************************************ Group 13. Boundary & Special Sources PATCH (BUOYANCY,PHASEM,0,0,0,0,0,0,1,1) COVAL (BUOYANCY,U1 , FIXFLU , GRND2 ) COVAL (BUOYANCY,V1 , FIXFLU , GRND2 ) COVAL (BUOYANCY,W1 , FIXFLU , GRND2 ) BUOYA = 0.000000E+00 ; BUOYB =-9.810000E+00 BUOYC = 0.000000E+00 BUOYD = 1.189000E+00 BUOYE = 2.000000E+01 EGWF = T ************************************************************ Group 14. Downstream Pressure For PARAB ************************************************************ Group 15. Terminate Sweeps LSWEEP = 150 RESFAC = 1.000000E-03 ************************************************************ Group 16. Terminate Iterations LITER (TEM1) = 15 ************************************************************ Group 17. Relaxation RELAX(P1 ,LINRLX, 1.000000E+00) RELAX(U1 ,FALSDT, 7.000000E-01) RELAX(V1 ,FALSDT, 7.000000E-01) RELAX(W1 ,FALSDT, 7.000000E-01) RELAX(TEM1,FALSDT, 7.000000E+03) ************************************************************ Group 18. Limits VARMAX(U1 ) = 1.000000E+06 ;VARMIN(U1 ) =-1.000000E+06 VARMAX(V1 ) = 1.000000E+06 ;VARMIN(V1 ) =-1.000000E+06 VARMAX(W1 ) = 1.000000E+06 ;VARMIN(W1 ) =-1.000000E+06 ************************************************************ Group 19. EARTH Calls To GROUND Station USEGRD = T ;USEGRX = T NAMGRD =HTBX ASAP = T LG( 9) = T ************************************************************ Group 20. Preliminary Printout ECHO = T ************************************************************ Group 21. Print-out of Variables OUTPUT(BLOK,N,N,N,N,N,N) OUTPUT(PRPS,N,N,N,N,N,N) OUTPUT(WDIS,Y,N,N,N,N,N) ************************************************************ Group 22. Monitor Print-Out IXMON = 5 ;IYMON = 7 ;IZMON = 4 NPRMON = 100000 NPRMNT = 1 TSTSWP = -1 ************************************************************ Group 23.Field Print-Out & Plot Control NPRINT = 100000 NPLT = 1 ISWPRF = 1 ;ISWPRL = 100000 ITABL = 3 No PATCHes used for this Group ************************************************************ Group 24. Dumps For Restarts GVIEW(P,5.773503E-01,5.773503E-01,5.773503E-01) GVIEW(UP,-4.082483E-01,8.164966E-01,-4.082483E-01) > DOM, SIZE, 5.000000E-01, 7.000000E-01, 5.000000E-01 > DOM, MONIT, 2.250000E-01, 4.025000E-01, 1.675000E-01 > DOM, SCALE, 1.000000E+00, 1.000000E+00, 1.000000E+00 > DOM, SNAPSIZE, 1.000000E-02 > GRID, RSET_X_1, 2, 1.000000E+00 > GRID, RSET_X_2, 1, 1.000000E+00 > GRID, RSET_X_3, 1, 1.000000E+00 > GRID, RSET_X_4, 2, 1.000000E+00 > GRID, RSET_X_5, 1, 1.000000E+00 > GRID, RSET_X_6, 1, 1.000000E+00 > GRID, RSET_X_7, 2, 1.000000E+00 > GRID, RSET_Y_1, 3, 1.000000E+00 > GRID, RSET_Y_2, 2, 1.000000E+00 > GRID, RSET_Y_3, 1, 1.000000E+00 > GRID, RSET_Y_4, 2, 1.000000E+00 > GRID, RSET_Y_5, 2, 1.000000E+00 > GRID, RSET_Z_1, 2, 1.000000E+00 > GRID, RSET_Z_2, 1, 1.000000E+00 > GRID, RSET_Z_3, 2, 1.000000E+00 > GRID, RSET_Z_4, 2, 1.000000E+00 > GRID, RSET_Z_5, 1, 1.000000E+00 > GRID, RSET_Z_6, 2, 1.000000E+00 > DOM, SYS-CURVE, T > DOM, SYS-POINTS, 5 > DOM, FLMIN, 1.000000E+01 > DOM, FLMAX , 9.000000E+01 > OBJ, NAME, PCB > OBJ, POSITION, 9.999999E-02, 3.500000E-01, 9.999999E-02 > OBJ, SIZE, 3.000000E-01, 0.000000E+00, 3.000000E-01 > OBJ, CLIPART, cube11 > OBJ, ROTATION24, 1 > OBJ, TYPE, PLATE > OBJ, POROSITY, 0.000000E+00 > OBJ, SIDE, BOTH > OBJ, NAME, CHIP1 > OBJ, POSITION, 1.500000E-01, 3.500000E-01, 1.500000E-01 > OBJ, SIZE, 4.999998E-02, 2.000001E-02, 6.999999E-02 > OBJ, CLIPART, cube4 > OBJ, ROTATION24, 1 > OBJ, TYPE, BLOCKAGE > OBJ, MATERIAL, 100 > OBJ, HEAT_FLVX, 0.000000E+00, 7.143000E+04 > OBJ, INI_BLOK, 2.000000E+00 > OBJ, NAME, CHIP2 > OBJ, POSITION, 3.000000E-01, 3.500000E-01, 1.500000E-01 > OBJ, SIZE, 5.000001E-02, 2.000001E-02, 6.999999E-02 > OBJ, CLIPART, cube4 > OBJ, ROTATION24, 1 > OBJ, TYPE, BLOCKAGE > OBJ, MATERIAL, 100 > OBJ, HEAT_FLVX, 0.000000E+00, 1.000000E+05 > OBJ, INI_BLOK, 3.000000E+00 > OBJ, NAME, VENT > OBJ, POSITION, 9.999999E-02, 7.000000E-01, 1.500000E-01 > OBJ, SIZE, 3.000000E-01, 0.000000E+00, 2.000000E-01 > OBJ, CLIPART, cube12t > OBJ, ROTATION24, 1 > OBJ, TYPE, APERTURE > OBJ, PRESSURE, 0.000000E+00 > OBJ, TEMPERATURE, 2.000000E+01 > OBJ, COEFFICIENT, 1.000000E+00 > OBJ, NAME, FAN > OBJ, POSITION, 1.500000E-01, 2.000000E-01, 0.000000E+00 > OBJ, SIZE, 2.000000E-01, 3.000000E-01, 0.000000E+00 > OBJ, CLIPART, cube2t > OBJ, ROTATION24, 1 > OBJ, TYPE, FAN > OBJ, VELOCITY, 0.000000E+00, 0.000000E+00, 1.000000E+00 > OBJ, TEMPERATURE, 2.000000E+01 > OBJ, PRESSURE, 0.000000E+00 STOP