Truncated aerofoils having spanwise splitters

Details Truncated aerofoils having spanwise splitters Truncated aerofoils having spanwise splitters

1975-09-05

1977-01-11

Blix, Trygve M.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244 42CC, B64C 2300

Patent

active

040023125

ABSTRACT:
An aerofoil for use in transonic conditions is truncated aft of the point of maximum thickness and has a splitter extending downstream of the trailing edge and dividing the trailing edge into two sections. Each section has a concavely or a substantially parabollically contoured surface. The aerofoil comprises fans or outlets adjacent the downstream end of the splitter for inducing in each section a zone of recirculatory flow in the region bounded by the splitter, the surface and a boundary streamline of free stream airflow over the aerofoil, the recirculatory flow adjacent the splitter being upstream relative to the free stream airflow.

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