Ludwig Kort

Ludwig Kort was a German fluid dynamicist known for developing the ducted propeller, or Kort nozzle. In an attempt to reduce canal erosion, Kort discovered that directing the wake of a propeller through a short, stationary nozzle also increased thrust.^[1] He submitted a U.S. patent for this technique, which was awarded in 1936.^[2] His research showed that the performance of ducted propellers heavily depended on the cross-section and thickness of the duct.^[3]

References[]

^ Seidman, David (July 2004). "Kort Nozzles". Boating Magazine: 58.
^ Pereira, Jason L. (2008). Hover and Wind-tunnel Testing of Shrouded Rotors for Improved Micro Air Vehicle Design. ProQuest. p. 26. ISBN 0549961658.
^ Griffiths, Gwyn (2002-11-28). Technology and Applications of Autonomous Underwater Vehicles. CRC Press. p. 109. ISBN 0203522303.

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[1] Seidman, David (July 2004). "Kort Nozzles". Boating Magazine: 58.

[2] Pereira, Jason L. (2008). Hover and Wind-tunnel Testing of Shrouded Rotors for Improved Micro Air Vehicle Design. ProQuest. p. 26. ISBN 0549961658.

[3] Griffiths, Gwyn (2002-11-28). Technology and Applications of Autonomous Underwater Vehicles. CRC Press. p. 109. ISBN 0203522303.

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