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HEAT3 - Heat transfer in three dimensions
We offer support and manuals for HEAT2/HEAT3
in German, see
www.buildingphysics.de.
Documentation
English:
German:
Special versions
The basic version with 2 million cells is sufficient for most
applications. We do
however provide
special
versions of HEAT3 for a current fee of $400 (the basic license
of HEAT3 is required). The
amount of
numerical nodes are limited by the
primary memory (RAM). The following list shows recommended
configurations:
| PC
memory (RAM) |
Number of nodes |
| 512 MB |
12 000
000 |
| 1GB |
27 000
000 |
| 2 GB |
50 000
000 |
Note that the amount of cells in the three directions does not have
to be equal. A version of HEAT3 with for example
250*325*325 cells (26
million nodes) would be good for a PC with 1 GB RAM.
Memory is allocated only for the used number of
cells in each calculation. When RAM is insufficient, memory will
be swapped to/from the virtual memory (e.g. the hard disk) and
calculations might take much longer time (perhaps a
factor 50-100 or so). There is a smaller overhead of performance (slower
calculation speed and slower user interface
interaction) that becomes greater with the number of nodes. This is the
reason why the special version HEAT3 should
not be be overmatched with the current PC memory size. As long as no
swapping to/from hard disk occur (see lamp
or listen to the disk) all should be ok (and fast).
References
Old version 4
Old version 3
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