IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0054235
(2001-11-13)
|
발명자
/ 주소 |
- Karniadakis, George Em
- Breuer, Kenneth
- Symeonidis, Vasileios
|
출원인 / 주소 |
- Brown University Research Foundation
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
8 |
초록
▼
The systems and methods of the invention include systems and techniques for controlling a turbulent boundary layer flow with a transverse traveling wave, oscillating at certain selected frequencies, amplitudes and wavelengths, to provide substantial reductions of drag. To this end, the systems and p
The systems and methods of the invention include systems and techniques for controlling a turbulent boundary layer flow with a transverse traveling wave, oscillating at certain selected frequencies, amplitudes and wavelengths, to provide substantial reductions of drag. To this end, the systems and processes can include a boundary layer control system having an object with at least one surface exposed to a medium flowing over the surface. A plurality of excitation elements may be arranged on the surface and these elements are capable of exciting a traveling wave force field in a span-wise direction that is substantially parallel to the surface and perpendicular to direction of the flow. A first component of the traveling wave force field in the span-wise direction is substantially greater than a second component of the traveling wave force field, that is substantially perpendicular to the span-wise direction.
대표청구항
▼
The systems and methods of the invention include systems and techniques for controlling a turbulent boundary layer flow with a transverse traveling wave, oscillating at certain selected frequencies, amplitudes and wavelengths, to provide substantial reductions of drag. To this end, the systems and p
The systems and methods of the invention include systems and techniques for controlling a turbulent boundary layer flow with a transverse traveling wave, oscillating at certain selected frequencies, amplitudes and wavelengths, to provide substantial reductions of drag. To this end, the systems and processes can include a boundary layer control system having an object with at least one surface exposed to a medium flowing over the surface. A plurality of excitation elements may be arranged on the surface and these elements are capable of exciting a traveling wave force field in a span-wise direction that is substantially parallel to the surface and perpendicular to direction of the flow. A first component of the traveling wave force field in the span-wise direction is substantially greater than a second component of the traveling wave force field, that is substantially perpendicular to the span-wise direction. , Inc. Catalog, 1972-73, front cover and pp. 356-376, 22 pps. Baker Oil Tools, Inc. Catalog, 1974-75, front cover and pp. 324-348, 26 pps. Baker Oil Tools, Inc. Catalog, 1976-77, front cover and pp. 396-418, 25 pps. Baker Oil Tools, Inc. Catalog, 1982-83, front cover and pp. 662-680, 22 pps. Baker Oil Tools, Inc. Product Guide, 1986-87, pp. 321, 336-337, 3 pps. Baker Service Tools Mini Catalog, 1986-87, pp. 373-374, 2 pps. Baker Oil Tools--Retrievable Packer Systems--Model "E"� Hydro-Trip Pressure Sub Product No. 799-28, Specification Guide, pp. 53, 1 pp. Lindsey Completion Systems General Catalog, 1986-87, frong cover and rear cover and pps. 4246-4275, in particular, pp. 4260 re "Cementing Equipment--Manifold", 32 pps. Texas Iron Works Catalog, 1962-63, front cover and pp. 4902-4903, 3 pps. Texas Iron Works Catalog, 1966-1967, front cover and pps. 4802-4803, 3 pps. Texas Iron Works, Catalog, 1970-71, front cover and p. 4612, 2 pps. Texas Iron Works, Catalog, 1972-73, front cover and p. 4430, 2 pps. Texas Iron Works, Catalog, 1974-75, front and rear covers and pp. 4918-4955, in particular, pp. 4947 for "TIW Cementing Manifolds", 40 pp. Texas Iron Works, Catalog, 1976-77, front cover and pp. 5544, 2 pps. Texas Iron Works, Catalog, 1982-83, front and rear covers and pp. 7910-7951, in particular, pp. 7922 for "TIW Cementing Equipment", 44 pps. Texas Iron Works, Catalog, 1986-87, front and rear covers and pp. 6090-6152, in particular, pp. 6106 for "Cementing Equipment", 64 pps. TIW Liner Equipment, Mechanical-Set Liner Hangers Specifications, pp. 12 or 2838 (prior art), 1 pp. TIW Marketing Application Drawing, 1724.01 Mech EJ-IB-TC RHJ Liner Hanger, Pin-up Class (prior art), 1 pp. Davis Manual-Fill Float Shoes, pp. 868-870 (prior art), 3 pps. Davis Self-Filling Float Shoes and Float Collars, pp. 872-873, (prior art), 2 pps. Ray Oil Tool Company Introduces, Another Successful Tool: Intercasing Centralizers (Inline Centralizers), Lafayette, Louisiana (prior art), 7 pps. TIW, Liner Equipment, Hydro-Hanger specifications pp. 2837 and 1718.02 IB-TC R HYD HGR W/PIN TOP (prior art), 2 pps. Weatherford Gemoco, .COPYRGT.Weatherford 1993, Model 1390 and 1490 Float Shoe Sure Seal Auto Fill, May 10, 1994, 8 pps. Note patent pending on last page. TIW Corporation, Marketing application Drawing, 9758.05 Circulating Sub (prior art), 1 pp. TIW Corporation, Marketing application Drawing
※ AI-Helper는 부적절한 답변을 할 수 있습니다.