Device to reduce turbulent flow skin friction using carbon dioxide, riblets, and suction holes
OwnerPapa Abdoulaye Mbodjinventor
Life of this patent
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Abstract
A device to reduce turbulent flow skin friction uses carbon dioxide, riblets, and suction holes to reduce the overall drag of a body moving in a fluid. A deflector (2) pushes up the boundary layer of the incoming flow on a surface (1). Carbon dioxide is injected into a plenum (3) and ejected through an exhaust slot (4). Riblets of specific dimensions (5) are placed to interact with the carbon dioxide flow that is now the sublayer viscous flow. After passing the riblets, the flow is sucked partly through suction holes (6), preventing flow separation that could increase the form and wave drag.
Claims8
An apparatus that is a device to reduce turbulent flow skin friction using carbon dioxide, riblets, and suction holes, the apparatus comprising:
- a surface onto which a flow deflector is attached, wherein the flow deflector is placed in front of the riblets;
- a plenum located under the surface into which the carbon dioxide is configured to be introduced and connected to an exhaust slot;
- the riblets coated with anions that are configured to attract the carbon dioxide and mounted on a thin film with adhesive fixing them on the surface, and with grooves facing a freestream, and placed in front of the exhaust slot;
- suction holes are connected to a plenum located under surface;
- the carbon dioxide is configured to be ejected into the grooves of the riblets and the freestream is deflected on a top of the flow deflector.
Dependencies are inferred from the claim text.