So, a box fan is likely to deliver more air flow than a wire
cage fan?

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"z" wrote in message
...

we did a project on window type fans undergrad. turned out
that
diameter was the big determinant of flow, higher speed on
the same fan
didn't increase the flow much; but it did increase the
turbulence,
which might be just as useful if you're not sitting in the
direct
blast of the fan. of course, that increased noise also,
which makes it
sound like there's more flow.
also, of course, ducting/shrouding the fan gave big increase
in flow
vs turbulence, but everybody probably knows that already.