For detailed description
please see
Update manual
(PDF), 800 kB, 21 pages, revised August 8, 2006
The following list shows a summary
of new features:
HEAT2 can automatically perform steady-state calculations
with gradually refined meshes. The user does not have to think about how to give
a proper mesh - HEAT2 does this. The mesh criterion from EN ISO 10211 can be
applied.
HEAT2 automatically calculates the thermal coupling
coefficient matrix (L2D) according to EN ISO 10211 for a wide variety
of problems involving thermal bridges.
Most steady-state problems will now be solved 5-15 times (!)
quicker due to optimization of the relaxation coefficient and the numerical
scheme.
Multiple consecutive simulations may be started externally
via batch files.
Many data fields have been increased in sizes. The maximum
number of numerical nodes has been quadrupled from 122500 (350·350) to 490000
(700·700).
The maximum number of cavities with full radiation analyses
has been extended from 20 to 50. The maximum number of radiation nodes in each
cavity has been extended from 500 to 1000.
HEAT2 7.0 with 490000 nodes requires only about 30 MB RAM (a
pc with 256 MB is recommended), and less than 5 MB hard disk space.
Hundreds of minor improvements are made. The most important
are shown below:
·
The emissivity in frame cavities
may now be changed
·
The temperature field T(i,j) can
now be saved/read to/from a file
·
Enhancements in pre-processor
·
Desktop (placement and sizes of
windows) may be saved/read (menu item Options)
·
Toggling from HEAT2 6.0 to another
program and back again would sometimes close down several windows in HEAT2. This
is now fixed.
·
The chart window for the recorder
can now show multiple graph lines in the same chart
·
The summarized boundary flows for
boundaries that have the same boundary condition type are now shown (F11)
·
For users using old-style text
input: the given mesh (length, number of cells, expansion coefficient in each
mesh segment) is not overwritten if description of boundaries changes
Enhancements in post-processing:
·
Window content may be zoomed to a
much higher limit than before
·
Faster drawing/updating
·
The numerical cell that determines
the smallest time-step can be visually shown
