Ok, you’ve convinced me, Lynn. Now how do
I go about scaling that dyson circle so I can get 15 times the airflow through
my cowl. Never doubted that venture effect would move air and exhaust
augmentation does essentially the same. But, must confess I never would have
guessed you get 15 more out of it than you put in. I mean that’s pretty dog
gone good.
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Lynn Hanover
Sent: Thursday, October 15, 2009
6:42 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Dyson Fan
Now the real question is how this fan
induced flow is capable of inducting a 15 time greater flow of air.
The principal would appear to be the same as exhaust augmentation with a lot
less energy. So don’t see any deifying of the laws of physics so far.
But, if it works for the dyson
fan, then why not get 15 times {:>) your current cooling air flow sitting on
the ground with your engine running?:
Look at venturi and eductors. Used in
moving huge amounts of fuel and water back and forth in ships to maintain trim
using a small amount of the fluid at very high velocity. See also, jet pumps.
The augmentor tubes in aircraft use a similar (venturi) principal. Nothing to
see here.................move along. 1900s technology.
The magic is the application. I own one of
the few remaining fans designed by Jim Bede. Several ring shaped guide vanes.
Very effective.
The Dyson is neat but not $300 plus dollars
neat. Like his $500 dollar vacuum cleaner????