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특허 상세정보

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내보내기 페이스북 공유 카카오톡 공유

Method and apparatus for reducing turbulent skin friction

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-021/02    B64C-021/10   
미국특허분류(USC) 244/207 ; 244/208 ; 244/209 ; 244/200
출원번호 US-0115635 (1987-10-26)
발명자 / 주소
인용정보 피인용 횟수 : 44  인용 특허 : 1
초록
▼

A method and apparatus for reducing the skin friction on objects in relative motion to a field of fluid. The areas of relative low speed motion are fixed to align with a series of ridges on the surface of the object. The areas of low speed motion aligned with the ridges are removed by suction from the turbulent boundary layer which results in a reduction of drag on the object. An alternative embodiment injects fluid into areas of relative high speed between the ridges to reduce the shear and the drag caused by it. Selective suction and injection are comb...

대표
청구항

A method for reducing turbulent skin friction of bodies in relative motion to a field of fluid comprising the steps of: locating localized areas of high and low speed flow in the area adjacent to the outside surface of the bodies; and, fixing said areas of low and high speed flow to a given area on the body; and, removing said areas of low and high speed flow.

이 특허에 인용된 특허 (1)

  1. Lurz Werner (Hamburg DEX). Method of and apparatus for controlling the boundary layer flow over the surface of a body. USP1985054516747.

이 특허를 인용한 특허 피인용횟수: 44

  1. Williams, Timothy Leroy; Rawlings, Diane C.. Aerodynamic microstructures having sub-microstructures. USP2018019868135.
  2. Wright, Philip; Kay, Edmund. Aircraft wing with slotted high lift system. USP2016119481447.
  3. Rawlings, Diane C.; Christensen, Stephen. Amorphous metal riblets. USP2014038678316.
  4. Rawlings, Diane C.. Color applications for aerodynamic microstructures. USP2017079714083.
  5. Pluff Frederic L. ; Pluff Paula N.. Cylindrical member with reduced air flow resistance. USP1999065909782.
  6. May, Carol L.; Voropayev, Gennadiy A.. Design of viscoelastic coatings to reduce turbulent friction drag. USP201006RE41398.
  7. Carson,Dale C.. Drag reduction system and method. USP2006027004094.
  8. Shelman-Cohen, Alexander J.. Drag reduction systems having fractal geometry/geometrics. USP20180610001015.
  9. Gölling, Burkhard; Wassen, Erik; Hoell, Tobias; Thiel, Frank. Flow body and method for taking in and/or blowing out fluid through a plurality of openings in a flow surface section of a flow body. USP2017089725160.
  10. Colten, Todd Michael. Hand launched fixed wing aircraft. USP201407D708563.
  11. Zhong, Xiaolin; Fong, Kahei Danny; Wang, Xiaowen. Hypersonic laminar flow control. USP20180910071798.
  12. Rainous, Edward Atwood; Allmon, Barry Lynn; Loewe, Jeffre Gerry; Brooks, William Clarke; Blanton, Lee Alan; Tudor, Courtney James; Budinger, Vicky Showalter. Ice shed reduction for leading edge structures. USP2012088245981.
  13. Saiz, Manuel Munoz. Lifting arrangement for lateral aircraft surfaces. USP2003126669142.
  14. Li, Ming; Marinelli, James M.; Liu, Jiantao; Magnusen, Paul E.; Sheu, Simon; Heinimann, Markus B.; Liu, John; Vega, Luis Fanor. Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing same. USP2016039297394.
  15. Li, Ming; Marinelli, James M.; Liu, Jiantao; Magnusen, Paul E.; Sheu, Simon; Heinimann, Markus B.; Liu, John; Vega, Luis Fanor. Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing same. USP2013118578747.
  16. Li, Ming; Marinelli, James M.; Liu, Jiantao; Magnusen, Paul E.; Sheu, Simon; Heinimann, Markus B.; Liu, John; Vega, Luis Fanor. Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing same. USP2013058444092.
  17. Kiknadze Gennady Iraklevich,RUX ; Gachechiladze Ivan Alexandrovich,RUX ; Oleinikov Valery Grigorievich,RUX. Method and apparatus for controlling the boundary or wall layer of a continuous medium. USP2000096119987.
  18. Dixon, Charles J.; Hughes, Arthur C.. Method and apparatus for inducing controlled vortices to reduce afterbody drag. USP2004046715717.
  19. Boyd, Jeffrey Edwin; Nguyen, Quoc Ai; Jacob, Christian Johann; Hushlak, Gerald. Method and system for video interaction based on motion swarms. USP2012078218811.
  20. Koroteev, Dmitry Anatolievich; Osiptsov, Andrei Alexandrovich. Method of a formation hydraulic fracturing. USP2015038967251.
  21. Kiknadze,Gennady Iraklievich; Gachechiladze,Ivan Alexandrovich. Method of conversion of continuous medium flow energy and device for conversion of continuous medium flow energy. USP2008027331752.
  22. Lang, Amy W.. Micro-array surface for passive drag modification. USP2014088794574.
  23. Smith, Brian R.; Maines, Brant H.; Ma, Edward C.; DiGirolamo, Edward A.; Yagle, Patrick J.. Microvanes for aircraft aft body drag reduction. USP2012078226038.
  24. Rawlings, Diane C.; Keough, Bruce K.; Olli, Larry K.; Burg, Alan G.; Kestner, James M.; Granger, George Michael; McGarvey, James Charles. Multilayer riblet applique and methods of producing the same. USP20181010105877.
  25. Rawlings, Diane C.; Williams, Timothy Leroy; McGarvey, James C.; Kestner, James M.; Burg, Alan G.. Optical effects for aerodynamic microstructures. USP2017099751618.
  26. McClure, Paul D.; Macheret, Sergey; Smith, Brian R.; Chankaya, Kurt M.. Plasma enhanced riblet. USP2012078220754.
  27. Richard Heinen BE. Pneumatic tire tread having groove with peaks and valleys. USP2002076415835.
  28. Rawlings, Diane C.; Roe, George M.; Keller, Peter C.. Reduced solar absorptivity applique. USP2014058733702.
  29. Frankenberger, Eckart; Meussen, Matthias. Reduction of frictional losses in the region of boundary layers on surfaces, around which a fluid flows. USP2012018091837.
  30. Rawlings, Diane C.; Malone, Kevin R.. Rigid tipped riblets. USP2014048684310.
  31. Bonnet, Laurent. Rotor blade for a wind turbine having aerodynamic feature elements. USP2009107604461.
  32. Rawlings, Diane C.; Schneider, Terry L.. Shape memory riblets. USP2014038668166.
  33. Hwang Danny P.. Skin friction reduction by micro-blowing technique. USP1998095803410.
  34. Paszkowski,Mariusz. Superhydrophobic coating. USP2006026994045.
  35. Rethorst, Scott. Supersonic aircraft footprint spreading control system and method. USP2011017861966.
  36. Rethorst Scott (1806 Foothill St. Pasadena CA 91030). Supersonic aircraft shock wave energy recovery system. USP1997105676333.
  37. Drews Hilbert F. P.. Surface modification apparatus and method for decreasing the drag or retarding forces created by fluids flowing across a. USP1999115988568.
  38. Moser Josef,DEX ITX D-85435. Surface of a body exposed to circumfluent fluid. USP1999015860626.
  39. Nastasi Richard F. ; Soeder Walter S.. Swept-back wings with airflow channeling. USP2000106138957.
  40. Wu,Yunlong. Type aircraft. USP2006127150435.
  41. Kevin D. McIntosh. Valve obturator. USP2002066409967.
  42. McIntosh, Kevin D.. Valve obturator. USP2005116960180.
  43. Smith, Brian R.; Yagle, Patrick J.. Vortex generation device. USP2015079079658.
  44. Sullivan, John; Sullivan, Collin Robert. Wavy airfoil. USP2013118573541.

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