can a jet be sqaure or rectangle shaped

[brandonppr]

Do round jets work better than square or rectangle jets?
What about intake versus exhaust?

[metiz]

square engines work, just not as well. In a square engine, there can be a bunch of "dead zones" where gasses aren't properly burned or are not as hot as they should be etc etc. but a square engine can work. If you have the choise go for round though

[brandonppr]

Thanks for the help.

[evildrome]

Short answer... yes. I've done it.

Doesn't work that well...

http://www.youtube.com/watch?v=3LInWFmSWB4


Cheers,

Wilson.

[dynajetjerry]

The makers of the Dyna-Jet (Aeromarine Co.,) created several p-js that were not traditional in shape, during research for a helicopter engine. It was for American Helicopter Co. (absorbed by, I think, Northrop.) All of them were less powerful than hoped and all tended to warp into a round shape as running time accumulated and they heated up. They tried various valve arrangements but none were satisfactory.
The design was finally shipped after extensive tests on a AHC-supplied whirl test stand. After AHC equipped it with several different shrouds, its performance was significantly improved, though published records (insofar as I can learn,) failed to indicate Aeromarine's contributions.
Dynajetjerry

[PyroJoe]

Structural problems can develop in square or rectangle engines when they are scaled up. Mostly bulging or collapsing in the center of the flat areas.