Integrated surface treatment for drag and noise reduction
AssigneeRtx Corporation
InventorsBrian M. Holley, Christopher T. Chipman, Daniel W. Shannon, Julian Winkler
Life of this patent
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Abstract
An aerodynamic component having an aerodynamic surface having a first side facing a fluid flow in a flow direction, and a second side opposed to the first side; at least one resonant cavity on the second side of the surface; at least one rib on the first side of the surface and aligned in the flow direction, the at least one rib extending away from the first side of the surface and defining channels on either side of the at least one rib; and at least one perforation connecting a channel on the surface with the at least one resonant cavity.
Claims13
An aerodynamic component, comprising:
- an aerodynamic surface having a first side facing a fluid flow in a flow direction, and a second side opposed to the first side;
- at least one resonant cavity on the second side of the surface;
- a plurality of substantially parallel ribs on the first side of the surface and aligned in the flow direction, the plurality of substantially parallel ribs extending away from the first side of the surface and defining a plurality of channels therebetween which also extend along the flow direction, wherein the plurality of substantially parallel ribs are configured to influence a flow profile along the aerodynamic surface such that reduced velocity flow is experienced along surfaces of the channels;
- and
- a plurality of perforations connecting a channel of the plurality of channels with the at least one resonant cavity, wherein the plurality of perforations extend laterally across a width of the channel at a location where flow velocity is configured to be reduced.
A method for making a component having a surface treatment on an aerodynamic surface, the method comprising:
- forming a plurality of substantially parallel ribs on a first side of the aerodynamic surface, the first side being configured to face a fluid flow, the plurality of substantially parallel ribs extending away from the first side and defining channels aligned in a flow direction therebetween, the plurality of substantially parallel ribs being configured to influence a flow profile along the aerodynamic surface such that reduced velocity flow is experienced along surfaces of the channels, and the aerodynamic surface further having a second side opposed to the first side, and at least one resonant cavity on the second side;
- forming a plurality of perforations in a channel of the channels, through the aerodynamic surface from the first side to the second side and communicated with the at least one resonant cavity, the plurality of perforations extending laterally across a width of the channel at a location where flow velocity is configured to be reduced.
Dependencies are inferred from the claim text.