Geometries for roughness shapes in laminar flow

Details Geometries for roughness shapes in laminar flow Geometries for roughness shapes in laminar flow

1983-11-10

1986-10-28

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft structure

Details

244 35R, 244200, 244204, B64C 2110

Patent

active

046194231

ABSTRACT:
This invention is for a passive laminar flow airfoil which has an upper skin 12 and lower skin 14 joined at a trailing edge 16. A leading edge structure 20, such as de-icing equipment, is joined to the upper and lower skins by interface mechanisms 30 and 35. Generally, the interface mechanisms are forward facing steps, with or without adjacent gaps, shaped and dimensioned to accomplish laminar flow using standard airfoil manufacturing techniques.

REFERENCES:
patent: 1746140 (1930-02-01), Bobo
patent: 2261558 (1941-11-01), Orloff
patent: 2321837 (1943-06-01), Maxwell
patent: 2386170 (1945-10-01), Watter
patent: 2470128 (1949-05-01), Barrick et al.
patent: 2473728 (1949-06-01), Rutledge
patent: 2613893 (1952-10-01), Young
patent: 2739770 (1956-03-01), Fanti et al.
patent: 2899150 (1959-08-01), Ellis, Jr.
patent: 4258889 (1981-03-01), Hunt
patent: 4354648 (1982-10-01), Schenk et al.

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