Patents by Inventor Amy Warncke Lang

Amy Warncke Lang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • PASSIVE DRAG MODIFICATION SYSTEM
    Publication number: 20150017385
    Abstract: The present invention is directed to a micro-array surface that provides for drag reduction. An aerodynamic or hydrodynamic wall surface that is configured to modify a fluid boundary layer on the surface is provided. The wall surface has a plurality of cavities defined therein the surface. In various examples, the interaction of the cavities with a flow of fluid relative to the wall surface is configured to form a plurality of stable, embedded cavity vortices such that a partial slip condition is produced over the wall surface.
    Type: Application
    Filed: March 8, 2013
    Publication date: January 15, 2015
    Inventor: Amy Warncke Lang
  • Passive micro-roughness array for drag modification
    Patent number: 8113469
    Abstract: The present invention is directed to a micro-array surface that provides for either drag reduction or enhancement. In one aspect, an aerodynamic or hydrodynamic wall surface that is configured to modify a fluid boundary layer on the surface comprises at least one array of roughness elements disposed on and extending therefrom the surface. In one example, the interaction of the roughness elements with a turbulent boundary layer of the fluid reduces the skin friction drag coefficient of the surface over an identical smooth surface without the roughness elements.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: February 14, 2012
    Assignee: University of Alabama
    Inventor: Amy Warncke Lang
  • PASSIVE DRAG MODIFICATION SYSTEM
    Publication number: 20110274875
    Abstract: The present invention is directed to a micro-array surface that provides for drag reduction. An aerodynamic or hydrodynamic wall surface that is configured to modify a fluid boundary layer on the surface is provided. The wall surface has at least one array of micro-cavities formed therein the surface. In various examples, the interaction of the micro-cavities with the boundary layer of the fluid can control separation, reduce surface drag, and/or delay transition of the fluid over an identical smooth surface without the micro-cavities.
    Type: Application
    Filed: November 23, 2009
    Publication date: November 10, 2011
    Applicant: The University of Alabama
    Inventor: Amy Warncke Lang
  • Passive micro-roughness array for drag modification
    Publication number: 20070194178
    Abstract: The present invention is directed to a micro-array surface that provides for either drag reduction or enhancement. In one aspect, an aerodynamic or hydrodynamic wall surface that is configured to modify a fluid boundary layer on the surface comprises at least one array of roughness elements disposed on and extending therefrom the surface. In one example, the interaction of the roughness elements with a turbulent boundary layer of the fluid reduces the skin friction drag coefficient of the surface over an identical smooth surface without the roughness elements.
    Type: Application
    Filed: February 21, 2007
    Publication date: August 23, 2007
    Inventor: Amy Warncke Lang