TALK=F;RUN( 1, 1) ************************************************************ Q1 created by VDI menu, Version 3.6, Date 01/04/04 CPVNAM=VDI;SPPNAM=Core ************************************************************ Echo DISPLAY / USE settings DISPLAY This case is like 378, but use the yz-plane instead of xy. A wide thin box moves diagonally across a two-dimensional space at uniform velocity. A box is an InForm-made object. It places across all domain. The domain contains a porous medium causing resistance to flow. The boundaries of the domain are open. The fluid is non-compressible. Parameters are provided which enable the effects on convergence and accuracy to be noted of: * box size divided by cell size; * time to traverse a cell divided by time step; * the compressibility factor; * the resistance coefficient; * pressure-drop coefficients at the ends of the domain. ENUL=1.0 for setting one-dimensional flow. PHOTON USE commands are included to assist display of results. ENDDIS photon use p p2; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p3; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p4; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p5; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p6; gr ou x 1 ve x 1 sh set prop off surf obid x 0.1 upause 2 p p7; gr ou x 1 ve x 1 sh set prop off surf obid x 0.1 upause 2 p p8; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p9; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p10; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 p p11; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p12; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p13; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p14; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p15; gr ou x 1 ve x 1 sh set prop off surf obid x 0.1 upause 2 p p16; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p17; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p18; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p19; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 upause 2 p p20; gr ou x 1 set prop off ve x 1 sh surf obid x 0.1 enduse ************************************************************ IRUNN = 1 ;LIBREF = 379 ************************************************************ GROUP 1. Run title and other preliminaries TEXT(MOFOR/In-Form: diagonal motion in YZ save1begin Initial data of problem ----------------------- delaration of parameters REAL(BZSZFAC,BYSZFAC,ANGL,TIMEFAC,COMPFAC,PCO,RESCO) ! delaration REAL(DMSIZE) ! of parameters ! settings BZSZFAC=40. ! box Z size divided by cell size BYSZFAC=1.0 ! box Y size divided by cell size ANGL=45. ! BOX rotation angle about X axis TIMEFAC=0.75 ! time to traverse a cell divided by time step COMPFAC=0.0 ! compressibility factor PCO=1.0 ! pressure coefficient RESCO=0.0 ! resistance to flow coefficient DMSIZE=1.0 ! domain size save1end TLAST=10.0 ! PIL variables ZWLAST=DMSIZE YVLAST=DMSIZE LSTEP=20 NZ=40 NY=40 GROUP 2. Transience; time-step specification STEADY=F;GRDPWR(T,LSTEP,TLAST,1.0) GROUP 3. X-direction grid specification GRDPWR(X,1,0.1,1.0) GROUP 4. Y-direction grid specification GRDPWR(Y,NY,YVLAST,1.0) GROUP 5. Z-direction grid specification GRDPWR(Z,NZ,ZWLAST,1.0) GROUP 7. Variables stored, solved & named SOLVE(P1,W1,V1) SOLUTN(P1,Y,Y,Y,N,N,Y) SOLUTN(V1,Y,Y,Y,N,N,Y) SOLUTN(W1,Y,Y,Y,N,N,Y) STORE(OBID,PRPS) GROUP 9. Properties of the medium (or media) ENUL=1.0 GROUP 13. Boundary conditions and special sources ** Resistance PATCH(RESIST,VOLUME,1,NX,1,NY,1,NZ,1,LSTEP) COVAL(RESIST,W1,RESCO,0.0) COVAL(RESIST,V1,RESCO,0.0) ** open boundaries PATCH(low z,CELL,1,1,1,NY,1,1,1,LSTEP) COVAL(low z,P1,PCO,0.0) PATCH(high z,CELL,1,1,1,NY,NZ,NZ,1,LSTEP) COVAL(high z,P1,PCO,0.0) PATCH(low y,CELL,1,1,1,1,1,NZ,1,LSTEP) COVAL(low y,P1,PCO,0.0) PATCH(high y,CELL,1,1,NY,NY,1,NZ,1,LSTEP) COVAL(high y,P1,PCO,0.0) ** The space within which box may move PATCH(IMOFOR,VOLUME,1,NX,1,NY,1,NZ,1,LSTEP) INFORM13BEGIN store(rho1) (property rho1 is 1.0+ :compfac:*p1) ! density depends on pressure (property drh1dp is :compfac:) denpco=t ** Moving box REAL(ZCELL,YCELL,TSTEP,TCELL,REALNZ,REALNY,REALNT,WVEL,VVEL) ! declaration ! of reals realnz=nz; realny=ny realnt=lstep tstep=tlast/realnt ! size of time step zcell=zwlast/realnz ! Z size of cell ycell=yvlast/realny ! Y size of cell tcell=tstep*timefac ! time to traverse cell wvel=zcell/tcell ! W1 velocity of box motion vvel=ycell/tcell ! V1 velocity of box motion REAL(ZSIZE,YSIZE,RTMP,SINA,COSA) CHAR(XPS,YPS,ZPS,VEL) sina=sin(angl) cosa=cos(angl) zsize=zcell*bzszfac ysize=ycell*byszfac vel=:vvel: rtmp=-0.13*yvlast-0.5*ysize*cosa+0.5*zsize*sina yps=:vel:*tim+(:rtmp:) vel=:wvel: rtmp=-0.13*zwlast-0.5*ysize*sina-0.5*zsize*cosa zps=:vel:*tim+(:rtmp:) xps=.0 vel zps yps (MOVOB of BOX is POS(:XPS:&:YPS:&:ZPS:&:ANGL:&0&0)) INFORM13END SPEDAT(SET,MOFOR,MOFFILE,C,NOTSET) ISG62 = 0 GROUP 15. Termination of sweeps LSWEEP=150 GROUP 17. Under-relaxation devices RELAX(P1,LINRLX,1.) RELAX(V1,FALSDT,TCELL) RELAX(W1,FALSDT,TCELL) RELAX(RHO1,LINRLX,0.1) varmax(p1)=1.0 varmin(p1)=-1.0 varmin(rho1)=0.01 SPEDAT(SET,GXMONI,TRANSIENT,L,F) GROUP 22. Spot-value print-out NPRMON=LSWEEP;IZMON=NZ/4+1;IYMON=NY/4+1 GROUP 23. Print-out & plot control TSTSWP=-1 IDISPA=1; CSG1=P LIBREF=379 SELREF=T; RESFAC=1.E-2 NTPRIN=1 DISTIL=T EX(P1)=3.187E-02; EX(W1)=6.623E-02; EX(V1)=6.612E-02 EX(RHO1)=1.000E+00 ************************************************************ GVIEW(P,-1.000000E+00,0.000000E+00,0.000000E+00) GVIEW(UP,0.000000E+00,1.000000E+00,0.000000E+00) > DOM, SIZE, 1.000000E-01, 1.000000E+00, 1.000000E+00 > DOM, MONIT, 5.000000E-02, 2.625000E-01, 2.625000E-01 > DOM, SCALE, 1.000000E+00, 1.000000E+00, 1.000000E+00 > DOM, SNAPSIZE, 1.000000E-02 > OBJ, NAME, LOWZ > OBJ, POSITION, 0.000000E+00, 0.000000E+00, 0.000000E+00 > OBJ, SIZE, 1.000000E-01, 1.000000E+00, 2.500000E-02 > OBJ, GEOMETRY, default > OBJ, ROTATION24, 1 > OBJ, TYPE, CELLTYPE > OBJ, NAME, HIGHZ > OBJ, POSITION, 0.000000E+00, 0.000000E+00, 9.750000E-01 > OBJ, SIZE, 1.000000E-01, 1.000000E+00, 2.499998E-02 > OBJ, GEOMETRY, default > OBJ, ROTATION24, 1 > OBJ, TYPE, CELLTYPE > OBJ, NAME, LOWY > OBJ, POSITION, 0.000000E+00, 0.000000E+00, 0.000000E+00 > OBJ, SIZE, 1.000000E-01, 2.500000E-02, 1.000000E+00 > OBJ, GEOMETRY, default > OBJ, ROTATION24, 1 > OBJ, TYPE, CELLTYPE > OBJ, NAME, HIGHY > OBJ, POSITION, 0.000000E+00, 9.750000E-01, 0.000000E+00 > OBJ, SIZE, 1.000000E-01, 2.499998E-02, 1.000000E+00 > OBJ, GEOMETRY, default > OBJ, ROTATION24, 1 > OBJ, TYPE, CELLTYPE > OBJ, NAME, BOX > OBJ, POSITION, 0.000000E+00, 0.000000E+00, 0.000000E+00 > OBJ, SIZE, 1.000000E-01, 2.500000E-02, 1.000000E+00 > OBJ, GEOMETRY, cube14 > OBJ, ROTATION24, 1 > OBJ, TYPE, BLOCKAGE > OBJ, MATERIAL, -1 > OBJ, TIME_LIMITS, ALWAYS_ACTIVE lsg57=t #maxabs STOP