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ULTRASONIC DRAG MODULATION

  • US 20100276006A1
  • Filed: 07/12/2010
  • Published: 11/04/2010
  • Est. Priority Date: 11/04/2002
  • Status: Active Grant
First Claim
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1. A method for controlling drag of a vehicle traveling through an environmental media, comprising:

  • directing a transducer, responsive to a signal, to emit an ultrasonic beam rearwards, with respect to a direction of vehicle travel, into a transitional section between a laminar flow and a turbulent flow of a boundary layer adjacent to a surface of the vehicle, to modify the drag exerted on the vehicle.

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