TALK=T;RUN( 1, 1) ** LOAD(102) from the PHOENICS Input Library The physical problem is that of case (100), effected by: L(100) but the whole-field solver is switched off, reverting to the slab-wise one. Consequently, many sweeps are needed for convergence, and the computer time is increased. The next commands allow this, and switches on the graphical monitor so that the effects can be observed. TEXT(3D Heat Cond, Slab-Wise Solver TITLE LSWEEP=6000;TSTSWP=-20;IXMON=3;IYMON=3;IZMON=3 SOLUTN(TEMP,P,P,N,P,P,P) UWATCH=F;LITER(TEMP)=-LITER(TEMP);OUTPUT(TEMP,Y,Y,Y,Y,Y,Y) SPEDAT(SET,GXMONI,CLASSIC,L,T) LIBREF = 102 STOP