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특허 상세정보

Apparatus for reducing turbulent drag

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-001/38   
미국특허분류(USC) 244/130 ; 244/200 ; 114/67R
출원번호 US-0086185 (1987-08-12)
우선권정보 DE-3522943 (1985-06-27)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 34  인용 특허 : 0

The turbulent drag is reduced on the surface of a body moving through a fluid by providing longitudinal channels in the surface, for example of an aircraft wing, which channels extend in parallel to the flow direction and which channels are interconnected with the boundary layer by a longitudinal gap communicating the channel with the boundary layer.


An apparatus for reducing turbulent drag caused on a surface of a body by relative movement between said body and a fluid, said movement defining a given movement direction, comprising a surface zone in said body adjacent to said body surface in direct contact with said fluid, a plurality of longitudinal channels inside said surface zone, said channels extending in parallel to each other and in parallel to said given movement direction, each channel comprising a longitudinal gap in said body surface communicating the respective channel with a boundary la...

이 특허를 인용한 특허 피인용횟수: 34

  1. Williams, Timothy Leroy; Rawlings, Diane C.. Aerodynamic microstructures having sub-microstructures. USP2018019868135.
  2. Schmidt, Eric Thomas. Aerodynamically efficient surfaces. USP2012118315847.
  3. Schmidt, Eric Thomas. Aerodynamically efficient surfaces. USP2013108556215.
  4. Rawlings, Diane C.; Christensen, Stephen. Amorphous metal riblets. USP2014038678316.
  5. Savill Anthony M. (Cambridge GB2). Boundary layer devices. USP1989094863121.
  6. Savill Anthony M. (Cambridge GB2). Boundary layer devices. USP1991065026232.
  7. Savill Anthony M. (Cambridge GB2). Boundary layer devices. USP1989094865271.
  8. Rawlings, Diane C.. Color applications for aerodynamic microstructures. USP2017079714083.
  9. Salaverry, Peter C.; Wood, Richard. Day cab road tractor with drag-reducing film system. USP201405D704112.
  10. Fan,Joline; Cui,Zhe. Drag reduction in pipe flow using microbubbles and acoustic energy. USP2006057044163.
  11. Shelman-Cohen, Alexander J.. Drag reduction systems having fractal geometry/geometrics. USP20180610001015.
  12. Riggins, David W.. Drag reduction utilizing driven micro-cavities. USP2016049308987.
  13. Schmidt, Wayde R.; Beals, James T.; Nardi, Aaron T.. Erosion resistant and hydrophobic article. USP2017119827735.
  14. Kraenzien Peter,DEX. Leading edge construction for an aerodynamic surface and method of making the same. USP2000046050523.
  15. Schmidt,Eric T.. Linear shock wave absorber. USP2008047357351.
  16. Bartholomew Donald D. (Marine City MI). Means of providing an air layer between a liquid and solid surface to reduce drag forces. USP1991075031559.
  17. Gleine Wolfgang,DEX ; Hilbig Reinhard,DEX ; Wendt Hans-Joachim,DEX. Method and apparatus for optimizing the aerodynamic effect of an airfoil. USP1999035875998.
  18. Salaverry, Peter C.. Method of reducing drag on the outer surface of a vehicle. USP2012038141936.
  19. Lang, Amy W.. Micro-array surface for passive drag modification. USP2014088794574.
  20. 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.
  21. Rawlings, Diane C.; Williams, Timothy Leroy; McGarvey, James C.; Kestner, James M.; Burg, Alan G.. Optical effects for aerodynamic microstructures. USP2017099751618.
  22. Lang, Amy Warncke. Passive micro-roughness array for drag modification. USP2012028113469.
  23. LaRoche Ulrich,CHX ; La Roche Hans Lucas,CHX. Process for forming a surface for contact with a flowing fluid and body with such surface regions. USP2000076092766.
  24. Rawlings, Diane C.; Roe, George M.; Keller, Peter C.. Reduced solar absorptivity applique. USP2014058733702.
  25. Rawlings, Diane C.; Roe, George M.; Keller, Peter C.. Reduced solar absorptivity applique having spaced riblets with pigmented coloration. USP2016069371141.
  26. Rawlings, Diane C.; Malone, Kevin R.. Rigid tipped riblets. USP2014048684310.
  27. Salaverry, Peter C.; Wood, Richard. Set of drag reducing panels for a road tractor. USP201303D677196.
  28. Rawlings, Diane C.; Schneider, Terry L.. Shape memory riblets. USP2014038668166.
  29. Schmidt, Eric T.. Shock wave absorber. USP2005026857604.
  30. Paul D. McClure. Streamwise variable height riblets for reducing skin friction drag of surfaces. USP2002026345791.
  31. Kousuke Umazume JP; Masanori Hashiguchi JP. Structure for reducing fluid resistivity on body. USP2002046363972.
  32. Koide, Brad Jiro; Myrman, Marshall Corey. Transportable inflatable surfing apparatus and method. USP20190210195535.
  33. Salaverry, Peter C.. Turbine with turbulence inducing surface. USP2014038662854.
  34. Salaverry, Peter C.. Vehicle with drag-reducing outer surface. USP2010107810867.