Efficient fluid dynamic and structural design and integration method to achieve extended hybrid laminar flow control
AssigneeThe Boeing Company
InventorsPeter L. Rupp, Pradip G. Parikh, Lian L. Ng, Paul M. Vijgen
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Abstract
Systems and methods for secondary suctioning for an aerodynamic body are presented. A primary surface is configured along a leading edge of an aerodynamic body, and at least one secondary suction device comprising an elongated shape is configured at least a first distance from the primary surface. A non-suction surface is configured between the primary surface and the at least one secondary suction device.
Claims38
An apparatus for extending laminar flow over an aerodynamic surface having a primary laminar flow region, comprising:
- a surface skin facesheet comprising a plurality of perforations configured to allow a flow of a fluid through the surface skin facesheet;
- a structural core layer coupled to and configured to structurally support a portion of the surface skin facesheet;
- a channeled stiffener positioned within the structural core layer, the channeled stiffener comprising suction channels coupled to the surface skin facesheet and configured to structurally support the surface skin facesheet and channel the flow of the fluid;
- an interior backing facesheet coupled to and configured to structurally support the structural core layer;
- and
- a suction device located a distance aft of the primary laminar flow region and configured to draw the fluid from the channeled stiffener.
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A method for extending laminar flow over an aerodynamic surface, the method comprising:
- configuring a primary surface of an aerodynamic body such that the primary surface provides laminar flow over a primary laminar flow region extending beyond the primary surface;
- and
- positioning a secondary suction device within the primary laminar flow region a distance from the primary surface to apply suction such that laminar flow over the aerodynamic surface is extended beyond the laminar flow region when the aerodynamic body is moving through a fluid.
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An apparatus for extending laminar flow over an aerodynamic surface, comprising:
- a primary laminar flow surface which provides a primary laminar flow region along an airfoil surface when the airfoil surface is moving through a fluid;
- and
- a secondary suction device located a distance from the primary laminar flow surface such that the laminar flow along the airfoil surface is extended beyond the primary laminar flow region when the airfoil surface is moving through a fluid.
Dependencies are inferred from the claim text.