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A wing including an airfoil section and having a leading edge, a trailing edge, an upper surface and a lower surface, wherein a region within the airfoil section adjacent the leading edge is ventilated to establish a sub-static pressure in that region during flight. Vents in the upper surface of the

A wing including an airfoil section and having a leading edge, a trailing edge, an upper surface and a lower surface, wherein a region within the airfoil section adjacent the leading edge is ventilated to establish a sub-static pressure in that region during flight. Vents in the upper surface of the wing provide the ventilation.

대표청구항 ▼

1. A wing comprising: an airfoil section including a leading edge, a trailing edge, an upper surface and a lower surface,wherein a region within the airfoil section immediately adjacent the leading edge is ventilated via one or more vent openings which open in the upper surface to establish a sub-st

1. A wing comprising: an airfoil section including a leading edge, a trailing edge, an upper surface and a lower surface,wherein a region within the airfoil section immediately adjacent the leading edge is ventilated via one or more vent openings which open in the upper surface to establish a sub-static pressure in the region during flight and the sub-static pressure is immediately adjacent the leading edge, wherein the region within the airfoil section is bounded, in a chordwise direction, by a front spar of the wing and a nose panel of the wing, and wherein the one or more vent openings are configured to discharge a gas from within the airfoil section into a predominately turbulent air flowing over the vent openings in the upper surface during flight, andeach of the one or more vent openings are disposed at one or more locations on the upper surface where airflow is predominantly turbulent during flight. 2. The wing according to claim 1, wherein the vent opening is flush with the upper surface. 3. The wing according to claim 1, further comprising a front spar which is adjacent the leading edge, and wherein the one or more vent openings are disposed forward of the front spar. 4. The wing according to claim 1, wherein the wing includes a root and a tip, and at least some of the one or more vent openings are adjacent at least one of the root and the tip. 5. The wing according to claim 1, wherein the upper surface adjacent the leading edge comprises: a plurality of panels arranged span-wise across the wing;a chord-wise joint between adjacent ones of the plurality of panels;a substantially wedge shaped region on one or more upper surfaces of the plurality of panels, wherein the substantially wedge shaped region is aligned with the cord-wise joint and wherein turbulent flow develops in the substantially wedge shaped region during flight, andat least some of the one or more vent openings are disposed within the turbulent wedge region. 6. The wing according to claim 1, further comprising one or more leading edge flaps. 7. The wing according to claim 1, wherein the at least one airfoil section is configured for natural laminar flow. 8. An aircraft including the wing according to claim 1. 9. The wing of claim 1 wherein the region within the airfoil section is between a forward rib and a root of the wing in a spanwise direction of the wing. 10. An aircraft comprising: a wing comprising an airfoil section including a leading edge, a trailing edge, an upper surface and a lower surface, wherein region within the airfoil section immediately adjacent the leading edge is ventilated via one or more vent openings which open in the upper surface to establish a sub-static pressure in the region during flight, and wherein the one or more vent openings are configured to discharge a gas from within the airfoil section into a predominately turbulent air flowing over the vent openings in the upper surface during flight, and each of the one or more vent openings are disposed at one or more locations on the upper surface where airflow is predominantly turbulent during flight, anda belly fairing between a fuselage and the wing, and wherein the leading edge region is ventilated via one or more ducts in fluid communication with the belly fairing. 11. A method of venting a wing, the wing comprising an airfoil section and having a leading edge, a trailing edge, an upper surface and a lower surface, and the wing includes a region within the airfoil section, immediately adjacent the leading edge, and between a front spar and a nose panel of the wing, the method comprising: ventilating the region within the airfoil section immediately adjacent the leading edge through vent openings in the upper surface, wherein the ventilation includes moving gas within the airfoil section through the vent openings and into a predominately turbulent air flowing over the vent openings in the upper surface during flight; andthe ventilation establishes a sub-static pressure in the region within the airfoil section during flight, wherein the sub-static pressure occurs at least immediately adjacent the leading edge. 12. The method according to claim 11, wherein the region is ventilated during a cruise portion of flight of an aircraft having the wing. 13. The method according to claim 11, wherein the at least one airfoil section is configured to have a portion of the upper surface adjacent natural laminar flow and another portion of the upper surface adjacent predominately turbulent air, and the vent openings are in the another portion of the upper surface. 14. The method of claim 11 wherein the region within the within the airfoil section is between a forward rib and a root of the wing in a spanwise direction of the wing. 15. A method of venting a wing, the wing comprising at least one airfoil section and having a leading edge, a trailing edge, an upper surface and a lower surface, and the method comprising: ventilating a region within the airfoil section immediately adjacent the leading edge through vent openings in the upper surface, wherein the ventilation includes moving gas within the airfoil section through the vent openings and into a predominately turbulent air flowing over the vent openings in the upper surface during flight,wherein the ventilation establishes a sub-static pressure in the region within the airfoil section during flight, andwherein the ventilation creates that a pressure differential across a panel defining the upper surface at the leading edge that causes a maximum outward deflection of the panel of less than 2 mm, during flight.