Jet engine fan nacelle

Details Jet engine fan nacelle Jet engine fan nacelle

1991-05-31

1992-10-20

Marmor, Charles A.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244130, 244 53B, B64C 2306

Patent

active

051563622

ABSTRACT:
A jet engine fan nacelle which maintains attached flow during engine windmilling. The nacelle includes a cylindrical airfoil body having an inner surface. A plurality of vortex generators are positioned on the inner surface between the nacelle body's leading edge and its throat within ninety degrees of rotation from the crown line hilite about the nacelle's longitudinal axis. The vortex generators energize the airflow to maintain an attached flow around the leading edge and along the outer surface of the nacelle's body without separating from the outer surface which would produce an undesirable increase in drag.

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