GB0522437D0 - The use of porous surfaces for flight controls - Google Patents

The use of porous surfaces for flight controls

Info

Publication number
GB0522437D0
GB0522437D0 GBGB0522437.3A GB0522437A GB0522437D0 GB 0522437 D0 GB0522437 D0 GB 0522437D0 GB 0522437 A GB0522437 A GB 0522437A GB 0522437 D0 GB0522437 D0 GB 0522437D0
Authority
GB
United Kingdom
Prior art keywords
lift
flow
porous
regions
porous regions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GBGB0522437.3A
Other versions
GB2431975A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMITH ANTHONY G
Original Assignee
SMITH ANTHONY G
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMITH ANTHONY G filed Critical SMITH ANTHONY G
Priority to GB0522437A priority Critical patent/GB2431975A/en
Publication of GB0522437D0 publication Critical patent/GB0522437D0/en
Publication of GB2431975A publication Critical patent/GB2431975A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/02—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like
    • B64C21/025—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like for simultaneous blowing and sucking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
    • B63B1/248—Shape, hydrodynamic features, construction of the foil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/02—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/02—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like
    • B64C21/04—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like for blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/02—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like
    • B64C21/06—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like for sucking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/02—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like
    • B64C21/08—Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/22—Boundary layer controls by using a surface having multiple apertures of relatively small openings other than slots
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/10—Drag reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

A lift generating body has porous regions and a valve system for controlling flow through these regions for influencing the lift. Preferably flow , 1, approaches the aerodynamic body, 2, at an angle of attack intended to generate lift. The porous surface, 3, on one surface of the body, 2, allows part of the flow to pass through to the other surface, 4, when the valve, 5, is open thus reducing the lift which the body generates. When the valve, 5, is closed flow between the two surfaces is prevented and the aerodynamic body provides the lift as though the surfaces were continuous. The porosity of the porous regions may be anywhere between zero and one, some of the porous regions may be blown with fluid, the porous regions may be on the same side of the body, and the working fluid may be air or water.
GB0522437A 2005-11-03 2005-11-03 The use of porous surfaces for flight controls Withdrawn GB2431975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0522437A GB2431975A (en) 2005-11-03 2005-11-03 The use of porous surfaces for flight controls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0522437A GB2431975A (en) 2005-11-03 2005-11-03 The use of porous surfaces for flight controls

Publications (2)

Publication Number Publication Date
GB0522437D0 true GB0522437D0 (en) 2005-12-14
GB2431975A GB2431975A (en) 2007-05-09

Family

ID=35516268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0522437A Withdrawn GB2431975A (en) 2005-11-03 2005-11-03 The use of porous surfaces for flight controls

Country Status (1)

Country Link
GB (1) GB2431975A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2549097A1 (en) * 2011-07-20 2013-01-23 LM Wind Power A/S Wind turbine blade with lift-regulating means
RU2587186C1 (en) * 2014-12-29 2016-06-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Московский авиационный институт (национальный исследовательский университет) (МАИ) Method of creating lift and thrust vector wing
US20180265208A1 (en) * 2015-10-24 2018-09-20 Hani M. Saeed Yousef Air intake structure and airflow control system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB244385A (en) * 1924-11-18 1925-12-17 Ventimotor Ag Improvements in or relating to the control of the effect of fluid currents on the stream line surfaces of prime movers
GB519623A (en) * 1937-09-24 1940-04-02 Willy Messerschmitt Improvements relating to arrangements for sucking-off the boundary layer on aeroplane wings
GB1202228A (en) * 1967-10-16 1970-08-12 Paul Armand Scherer Hydrofoil craft having displacement foils
US3920203A (en) * 1974-12-23 1975-11-18 Boeing Co Thrust control apparatus for obtaining maximum thrust reversal in minimum time upon landing of an aircraft
GB2093152A (en) * 1981-02-12 1982-08-25 Walmsley Sidney Boundary Layer Control
US4392621A (en) * 1981-04-07 1983-07-12 Hermann Viets Directional control of engine exhaust thrust vector in a STOL-type aircraft
US20030150962A1 (en) * 2002-02-12 2003-08-14 Bela Orban Method for controlling and delaying the separation of flow from a solid surface by suction coupling (controlling separation by suction coupling, CSSC)
DE102004024007B4 (en) * 2004-05-13 2007-10-11 Airbus Deutschland Gmbh Aircraft component, in particular wings
GB0514338D0 (en) * 2005-07-13 2005-08-17 Univ City Control of fluid flow separation

Also Published As

Publication number Publication date
GB2431975A (en) 2007-05-09

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)