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특허 상세정보

Method for stabilizing laminar separated boundary layers

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-021/06    B64C-021/08   
미국특허분류(USC) 244/209 ; 244/199 ; 244/208 ; 244/130
출원번호 US-0898736 (1986-08-15)
우선권정보 DE-3342421 (1983-11-24)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 29  인용 특허 : 0
초록

Separated laminar flow boundary layers are stabilized by delaying a transition into a turbulent flow and by reducing the size of the laminar boundary layer separation zone downstream of a disturbance in the surface contour of a body in the flow, such as a backward step in the body surface, e.g., where sheet metal layers overlap in the surface of an aircraft wing. This purpose is accomplished by suction inlets in the surface just upstream of the disturbance and blowing outlets just downstream of the disturbance and by a flow channel interconnecting these ...

대표
청구항

A method for stabilizing laminar, separated boundary layers of a medium flowing in a given flow direction along a boundary surface of a body in said flowing medium, by boundary layer control, comprising the following steps: (a) determining in a first zone, where there is a relatively high static pressure, first points on said boundary surface of said body upstream of and directly at a laminar boundary layer separation location (1) forming a disturbance in said boundary surface, (b) determining in a second zone, where there is a relatively low static pres...

이 특허를 인용한 특허 피인용횟수: 29

  1. Hassan, Ahmed A.; Madsen, Casey L.; Billman, Garrett M. Active flow control for transonic flight. USP2018039908617.
  2. Parikh Pradip G. ; Neumann Frank D.. Aircraft boundary layer control system with discharge transpiration panel. USP1998065772156.
  3. McNay Curtis E. (Wichita KS). Aircraft open viewing port configuration. USP1989084858850.
  4. Hatrick Michael John,GBX ; Ashford Edward Maurice,GBX. Aircraft propulsive power unit. USP1998035730393.
  5. Grosche Fritz-Reinhard,DEX ; Bader Viktor,DEX. Apparatus for influencing the flow separation from a body immersed in the flow. USP2001016176454.
  6. Birkenstock, David. Apparatus, system and method for drag reduction. USP2017099764823.
  7. Banks Daniel W. ; Wood Richard M. ; Bauer Steven X. S.. Control and augmentation of passive porosity through transpiration control. USP1999055901929.
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  10. Lahti Daniel J. (Cincinnati OH) Yates David E. (Cincinnati OH) Mungur Parmanand (West Chester OH) Stockman Norbert O. (Batavia OH). Hybrid laminar flow nacelle. USP1991024993663.
  11. Zhong, Xiaolin; Fong, Kahei Danny; Wang, Xiaowen. Hypersonic laminar flow control. USP20180910071798.
  12. Williams, Stewart W; Turner, Brian J. Laminar flow control system and suction panel for use therewith. USP2004066752358.
  13. Seyfang George R.,GB3. Laminar flow skin. USP1998125848768.
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  15. Loth Eric. Mesoflap passive transpiration system and method for shock/boundary layer interaction control. USP1999105971327.
  16. Barrett, Ronald M.; Reasonover, Christopher; Corpening, Jeremy. Method and apparatus for boundary layer reattachment using piezoelectric synthetic jet actuators. USP2004096796533.
  17. Gleine Wolfgang,DEX ; Hilbig Reinhard,DEX ; Wendt Hans-Joachim,DEX. Method and apparatus for optimizing the aerodynamic effect of an airfoil. USP1999035875998.
  18. Keefe Laurence R.. Method and apparatus for reducing the drag of flows over surfaces. USP1998095803409.
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  20. Marchetti, Danilo. Panel for controlling the aerodynamic phenomena on a body. USP2018069994297.
  21. Booher, Sr., Benjamin V.. Parasitic drag induced boundary layer reduction system and method. USP2017079701399.
  22. O'Neil Patrick J. ; Billman Garrett M.. Passive porosity airfoil management device. USP2000066079671.
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  24. Patel, Mehul P.; DiCocco, Jack M; Prince, Troy. Reconfigurable porous technology for fluid flow control and method of controlling flow. USP2005036866233.
  25. Kirtley, Kevin Richard. Self-aspirated flow control system for centrifugal compressors. USP2009067553122.
  26. Glezer, Ari; Mahalingam, Raghavendran; Heffington, Samuel. Synthetic jet heat pipe thermal management system. USP2009107607470.
  27. Shmilovich, Arvin; Yadlin, Yoram; Clark, Roger W.; Manley, David J.. System for aerodynamic flows and associated method. USP2009127635107.
  28. Mahalingam, Raghavendran; Glezer, Ari. Thermal management of batteries using synthetic jets. USP2011108030886.
  29. Kerr Roger S. ; Smith Dean L.. Vacuum imaging drum with vacuum holes for maintaining a boundary in an image processing apparatus. USP2001056226024.