A new study reveals how noise is generated and propagated from these engines, technically known as boundary layer ingesting (BLI) ducted fans.

Ducted fans have emerged as a promising propulsion solution for modern Unmanned Aerial Vehicles (UAVs), particularly in applications that demand high safety, efficiency and low noise levels.

This research introduces a novel equivalent criterion: an innovative analytical model establishing that even with different physical configurations, ducted propellers can be engineered to deliver ...

Outsourced components include the powertrain – the fuel cell system using six 400kW stacks, electrical distribution and the 1MW-class electric ducted fan engines, each generating thrust of 2 ...

Nothing turned up in a search, so I thought this might interest you guys (saw it on Engadget). HP is tweaking electric-ducted fans (the kind you find on model airplanes) to cool its servers:http ...

“Our study sheds light on how noise is generated by futuristic embedded ducted fans mounted on curved airframe surfaces, revealing that noise patterns vary with fan thrust levels, offering ...