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US 2013/0156595 A1Published application
Riblet structure on a flow surface and method
AssigneeAirbus Operations GmbH
InventorsPeter Sander, Jan Reh
Life of this patent
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Abstract
A riblet structure for a flow surface is provided. The riblet structure has a multitude of riblets that comprise a matrix material which includes reinforcement elements. The reinforcement elements can be designed as reinforcement fibers that extend in the longitudinal direction or as particles. In this manner the abrasion resistance can be improved and erosion can be retarded.
Claims20
A riblet structure for a flow surface, comprising:
- a multitude of riblets that include a matrix material which has reinforcement elements.
A method for producing a riblet structure for a flow surface, comprising:
- adding reinforcement elements to a matrix material;
- extruding a riblet mat such that at the top of the riblet structure riblets extend in the direction of extrusion, and the reinforcement elements are situated at least in the core of the riblets;
- and
- applying the riblet mat to a substrate surface against the direction of extrusion,
- wherein the underside of the riblet mat adheres to the substrate surface.
2 more elements
An aircraft comprising:
- an outer flow surface;
- a plurality of riblets that include a matrix material having reinforcement elements coupled to the outer flow surface,
- wherein the riblets at a base are spaced apart from each other.
Dependencies are inferred from the claim text.