Thread: Discussion boundary layer thickness
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Old Oct 01, 2012, 04:39 PM
richard hanson is offline
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Ducted fans do best with least flow impedance at inlet - fastest exit aft the prop
They just don't act like turbojets
They are also not positive displacement devices
restrict either inlet or outlet and the other side has reduced flow
Unless there has been some changes to ducted fans that I have not seen, you cant beat a short,l seperate unit
The great setups we see on current electric ducted fans are compromises - just like the rest of an airframe.
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