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| Number | Title | Issue Date |
| 6516652 | Design of viscoelastic coatings to reduce turbulent friction drag A method is provided to select appropriate material properties for turbulent friction drag reduction, given a specific body configuration and freestream velocity. The method is based on a mathematical description of the balance of energy at the interface ... | 02/11/2003 |
| 6435214 | Apparatus for reducing dissipation rate of fluid ejected into boundary layer A method and apparatus for ejecting a second fluid into the near-wall region of the boundary layer of a first fluid, so that the second fluid hugs the wall. This alone reduces drag by modifying the behavior of the near-wall structure, thereby reducing the... | 08/20/2002 |
| 6357464 | Method for reducing dissipation rate of fluid ejected into boundary layer A method for ejecting a second fluid into the near-wall region of the boundary layer of a first fluid, so that the second fluid hugs the wall. This alone reduces drag by modifying the behavior of the near-wall structure, thereby reducing the frequency of ... | 03/19/2002 |
| 6357374 | Method and apparatus for increasing the effectiveness and efficiency of multiple boundary layer control techniques In an apparatus and method for ejecting an additive for significantly reducing the drag of a first fluid moving relative to a wall, a drag-reducing substance is conditioned by causing a second fluid, which includes the drag-reducing substance as a dispers... | 03/19/2002 |
| 6349734 | Method for reducing dissipation rate of fluid ejected into boundary layer Skin friction reduction on a surface moving relative to a fluid can be obtained by ejecting a polymer--water mixture/solution into the boundary layer. The efficacy of the ejected polymer--water mixture/solution is closely related to polymer dissipation ou... | 02/26/2002 |
| 6305399 | Method for reducing dissipation rate of fluid ejected into boundary layer Skin friction reduction on a surface moving relative to a fluid can be obtained by ejecting a polymer--water mixture/solution into the boundary layer. The efficacy of the ejected polymer--water mixture/solution is closely related to polymer dissipation ou... | 10/23/2001 |
| 6237636 | Apparatus for reducing dissipation rate of fluid ejected into boundary layer Skin friction reduction on a surface moving relative to a fluid can be obtained by ejecting a polymer-water mixture/solution into the boundary layer. The efficacy of the ejected polymer-water mixture/solution is closely related to polymer dissipation out ... | 05/29/2001 |
| 6200014 | Method and apparatus for mixing high molecular weight materials with liquids Skin friction reduction on a surface moving relative to a fluid can be obtained by conditioning (i.e., unwinding, lengthening, or stretching) and ejecting a drag-reducing material, such as a polymer or other high molecular weight material, into the bounda... | 03/13/2001 |
| 6138704 | Method for reducing dissipation rate of fluid ejected into boundary layer Skin friction reduction on a surface moving relative to a fluid can be obtained by ejecting a polymer-water mixture/solution into the boundary layer. The efficacy of the ejected polymer-water mixture/solution is closely related to polymer dissipation out ... | 10/31/2000 |
