In order to establish laminar flow on the attachment line (18) of an aerofoil body, a duct entrance (27) is provided on the leading edge of the aerofoil body for receiving spanwise boundary layer flow BLt. The exit (23) of the duct is located spanwise downstream of the duct entrance (27). The boundary layer flow BLt enters the duct (23) and is discharged downstream. The height of the duct entrance (27) above the leading edge of the aerofoil body is greater than the depth of the boundary layer BLt and thus a fresh laminar boundary layer is established on the outer surface (20) of the duct which propagates spanwise along the surface to re¬ join the leading edge of the aerofoil body.
ESTABLISHMENT OF LAMINAR BOUNDARY LAYER FLOW ON AN AEROFOIL BODY
ETABLISSEMENT D'UN ECOULEMENT DE COUCHE LIMITE LAMINAIRE SUR UN CORPS A SURFACE PORTANTE
2015-05-26
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
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