6. Concluding remarks
At the end of this review of computer-aided engineering, or rather
of that limited part of it with which he has some acquaintance, the
present author finds himself optimistic about the future.
There have been disappointments, admittedly; for example:
Nevertheless, there are reasons or optimism; and specifically:-
- the turbulence models which came to prominence in the early
seventies have proved to be less and less satisfactory the more
they are used and studied;
- what early CFD-code developers thought were easy to use were
found quite otherwise by those to whom they were provided;
- even now, scarcely any CFD calculations are carried out with grids
which are fine enough for assured accuracy; and
- some CFD-code vendors, by claiming too much, have spread
disillusionment among practical engineers.
Perhaps, when these advances have been made, engineers will soon be
enabled to advance from CAD-1 all the way to CAD-2.
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- the scarcely-yet-explored multi-fluid turbulence models open vast
- true ease of use now been made possible by exploiting techniques
developed for the general computer-using populace (and especially
children), such as virtual reality;
- the previously-separate worlds of stress analysis and CFD appear
to be amenable to merging into SFT; and
- remote parallel computing, with "on-tap" advice, will greatly
enlarge the number of engineers who can afford to use the
simulation, analysis and design techniques.
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