This repo contains the duct & propeller geometry that we make use of in our experiments in the paper "Kriging assisted integrated rotor-duct optimization for ducted fan in hover." More specifically: ...

Back to the lesson at hand: In the video after the break, he does a wonderful job explaining how the walls of a duct work to stop the high pressure area of the propeller from moving to the low ...

He envisioned the fuselage as a tapered duct housing the engine and the propeller. This duct acted as a venturi tube, compressing the airflow from the propeller and engine exhaust before it exited ...