Boundary layer controls

Child Classifications

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• B64C 2230/02 by using acoustic waves generated by transducers
• B64C 2230/04 by actively generating fluid flow
• B64C 2230/06 by explicitly adjusting fluid flow, e.g. by using valves, variable aperture or slot areas, variable pump action or variable fluid pressure
• B64C 2230/08 by influencing fluid flow by means of surface cavities, i.e. net fluid flow is null
• B64C 2230/10 by influencing fluid flow by heating using other means than combustion
• B64C 2230/12 by using electromagnetic tiles, fluid ionizers, static charges or plasma
• B64C 2230/14 achieving noise reductions
• B64C 2230/16 by blowing other fluids over the surface than air, e.g. He, H, O2 or exhaust gases
• B64C 2230/18 by using small jets that make the fluid flow oscillate
• B64C 2230/20 by passively inducing fluid flow, e.g. by means of a pressure difference between both ends of a slot or duct
• B64C 2230/22 by using a surface having multiple apertures of relatively small openings other than slots
• B64C 2230/24 by using passive resonance cavities, e.g. without transducers
• B64C 2230/26 by using rib lets or hydrophobic surfaces
• B64C 2230/28 at propeller or rotor blades