A User's Manual for DELSOL3 - prod.sandia.gov - Sandia National ...

only be used with rectangular cavity apertures (IREC=2) or rectangular flat
plates (IREC=4), for the reasons described in Section 1I.F-3.
II. F-6. User Defined Aiming Strategy (IA UTOP=5)-A user defined aim-
ing strategy can be defined for each zone through the variables NAY(K,L),
NAX(K,L), YAIM(K,L,M), XAIM(K,L,M), and NUMPT(K,L) where K=l to
NRAD, L=l to NAZM, and M=l to 2. Each zone has a rectangular grid of NAX
by NAY points with the grid limits set by XAIM and YAIM. The zone numbers
(K,L) are shown in Figure 11-4 in their relative field position. Figure II-l5(F)
gives an example of this case. This aiming strategy is not time dependent; that is,
the aimpoints are the same no matter what time of day or year it is, even though
image size and thus spillage might change with time.
A sub-option of this case is obtained when IFXOUT(I,J)=-2, where I=l,
NYEAR and J=1, 16 to represent time of day (namelist NLFLUX). Only one
value of the array IFXOUT should be nonzero. This,sub-option allows interac-
tive graphical feedback of the effect of user specified aimpoints for a single zone.
For each zone, the code will allow the user to plot the flux map for that zone, plot
the cumulative flux map from all zones up to and including that zone, or change
the aimpoints of that zone and plot again. Although this sub-option quickly gives
the user a feel for the effect of changing aimpoints, it should be used with care
when using a large number of heliostat zones, since tedium could result. This
sub-option can only be used if the code was loaded along with DISSPLA soft-
ware (Reference 14), and is only set up to plot on a computer terminal which can
emulate a Tektronics 4014 terminal.
II.F-7. Combination “Smart” Aiming (IA UTOP