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Friction drag-reducing surface

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
An article includes a body having at least one viscous drag-reducing surface defining a multiplicity of macro-scale depressions separated and enframed by ridges, at least a portion of the surface being phobic to a preselected liquid so that gas bubbles may be trapped in the macro-scale depressions in order to reduce viscous drag between the article and the liquid.
D'Urso, Brian R. (Clinton, TN)
11/ 122,582
May 5, 2005
[0001] The United States Government has rights in this invention pursuant to contract no. DE-AC05-00OR22725 between the United States Department of Energy and UT-Battelle, LLC.