Quote:
Originally Posted by freebeard
Cites Mair (1969) so I see where it's coming from. The part about rectangular sections is opaque to my monolingual brain.
aerohead's favorite Template is a strict half-body. I struggled with the question at Why does The Template have to be a half body of revolution?. It covers superellipeses, etc. |
For 'practical' purposes, Paul Jaray morphed his 1922 streamline half body, from semicircular, to rectangular, and then back to semicircular, in order to accommodate passengers.
It doesn't really matter what one does to a body cross-section, as long as the local area does not vary any more than that of ideal semicircular section.
A look at a local sheet-metal shop which does work for heating and cooling system contractors will reveal their 'square-to-round', and 'round-to-square' duct transitions, which follow the same rules.
