System for boundary layer control through pulsed heating of a st

Details System for boundary layer control through pulsed heating of a st System for boundary layer control through pulsed heating of a st

1988-01-29

1988-11-22

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244130, B64C 2100

Patent

active

047860200

ABSTRACT:
A system is described for controlling the transition of laminar/turbulent flow at a surface which comprises a thin narrow strip heater disposed adjacent the surface and extending substantially transversely of the flow of the air stream thereacross, the heater being resiliently held in tension on or in closely spaced relationship to the surface, and a power source operatively connected to the heater for applying pulsed voltage of preselected amplitude and frequency to the heater.

REFERENCES:
patent: 3362663 (1968-01-01), Wehrmann
patent: 4516747 (1985-05-01), Lurz

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