Re:A Little Gear That Could Reshape the Jet Engine
by WalterBright on Monday October 19, 2015 @06:58PM
(#10416368)
> Yes, but why is a high bypass turbofan quieter?
The noise comes from high speed air alongside slow moving air. A high bypass fan moves more air at slower speed to get the same push. The slower speed means less noise.
The noise comes from high speed air alongside slow moving air. A high bypass fan moves more air at slower speed to get the same push. The slower speed means less noise.