GB869065A - Improvements in or relating to aircraft wings - Google Patents

Improvements in or relating to aircraft wings

Info

Publication number
GB869065A
GB869065A GB3657/58A GB365758A GB869065A GB 869065 A GB869065 A GB 869065A GB 3657/58 A GB3657/58 A GB 3657/58A GB 365758 A GB365758 A GB 365758A GB 869065 A GB869065 A GB 869065A
Authority
GB
United Kingdom
Prior art keywords
wing
gas
flap
spanwise
slot
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.)
Expired
Application number
GB3657/58A
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.)
Sebac Nouvelle SA
Original Assignee
Sebac Nouvelle SA
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 Sebac Nouvelle SA filed Critical Sebac Nouvelle SA
Publication of GB869065A publication Critical patent/GB869065A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C23/00—Influencing air flow over aircraft surfaces, not otherwise provided for
    • B64C23/005—Influencing air flow over aircraft surfaces, not otherwise provided for by other means not covered by groups B64C23/02 - B64C23/08, e.g. by electric charges, magnetic panels, piezoelectric elements, static charges or ultrasounds
    • 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
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/04—Boundary layer controls by actively generating fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/16—Boundary layer controls by blowing other fluids over the surface than air, e.g. He, H, O2 or exhaust gases
    • 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)
  • Jet Pumps And Other Pumps (AREA)

Abstract

869,065. Aircraft. SEBAC NOUVELLE S.A. Feb. 4, 1958 [Feb. 7, 1957], No. 3657/58. Class 4. In an aircraft wing, compressed gas is conveyed through a spanwise extending passage to one or more devices employing discharge of the gas through ejector slots employing the Coanda effect to entrain ambient gas from the wing interior, and discharging into first and second collectors, gas being discharged from the first collector through a spanwise extending Coanda slot on the upper surface of the wing, and from the second collector through arcuate passages formed between the trailing edge of the wing and a rotatable control surface of substantially circular crosssection with a rearwardly projecting fin. The Figure is a cross-section of a wing, wherein a passage 1 extending spanwise is fed with compressed air from a source within the fuselage, and delivers at spanwise intervals into pairs of duct 2 (one pair shown) leading to pairs of manifolds 3 annular in plan, each joined by ducts 6 to an annular chamber 5. This chamber discharges through a slot 7, the issuing gas following the curve of surfaces 9 into collector members 11 feeding an annular chamber 12. The gas jet from slot 7 entrains air from the interior of the wing into chamber 12, and thus sucks ambient air through apertured areas, 18, 16, of the wing skin to remove the boundary layer. The width of slot 7 can be varied by relative movement of its walls. All the chambers 12 are connected by ducts 21 to a spanwise extending first collector 22 discharging through a slot 25, one wall of which is curved to induce the issuing gas to follow the upper surface of the wing. All the annular chambers 12 are connected by ducts 23 to a second collector 24 partially obturated by a flap comprising a cylindrical portion 31 and fin 32. Upper and lower arcuate slots 37, 371 are formed for the discharge of gas jets, these slots being divided at spanwise intervals by webs 39, 391 on the flap. The axis of rotation 41 of the flap is offset from the axis 33 of the cylindrical portion 31, so that the widths of the slots vary as the flap is deflected. The flap is formed with recesses at 40, 40<SP>1</SP>.
GB3657/58A 1957-02-07 1958-02-04 Improvements in or relating to aircraft wings Expired GB869065A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR869065X 1957-02-07

Publications (1)

Publication Number Publication Date
GB869065A true GB869065A (en) 1961-05-25

Family

ID=9346317

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3657/58A Expired GB869065A (en) 1957-02-07 1958-02-04 Improvements in or relating to aircraft wings

Country Status (1)

Country Link
GB (1) GB869065A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008029095A1 (en) * 2006-09-06 2008-03-13 Bae System Plc Flow control actuators
FR2974563A1 (en) * 2011-04-28 2012-11-02 Airbus Operations Sas AERODYNAMIC PROFILE REDUCING DEFICIT SPEED IN ITS WAKE
CN109850128A (en) * 2019-04-12 2019-06-07 西华大学 Multi-stage blowing circulation volume high-lift device and aircraft
CN111532419A (en) * 2020-04-03 2020-08-14 中国空气动力研究与发展中心低速空气动力研究所 Ring volume control unit for improving supersonic coanda jet flow adhesion pressure ratio
EP4140879A1 (en) * 2021-08-22 2023-03-01 Illinois Institute Of Technology Bi-directional coanda valve

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008029095A1 (en) * 2006-09-06 2008-03-13 Bae System Plc Flow control actuators
JP2009507723A (en) * 2006-09-06 2009-02-26 ビ−エイイ− システムズ パブリック リミテッド カンパニ− Flow control actuator
US7984879B2 (en) 2006-09-06 2011-07-26 Bae Systems Plc Flow control actuators
JP2012071826A (en) * 2006-09-06 2012-04-12 Bae Systems Plc Flow control actuator
FR2974563A1 (en) * 2011-04-28 2012-11-02 Airbus Operations Sas AERODYNAMIC PROFILE REDUCING DEFICIT SPEED IN ITS WAKE
US8596574B2 (en) 2011-04-28 2013-12-03 Airbus Operations S.A.S. Streamlined profile reducing the speed deficit in its wake
CN109850128A (en) * 2019-04-12 2019-06-07 西华大学 Multi-stage blowing circulation volume high-lift device and aircraft
CN109850128B (en) * 2019-04-12 2023-11-24 西华大学 Multistage blowing annular quantity lift-increasing device and aircraft
CN111532419A (en) * 2020-04-03 2020-08-14 中国空气动力研究与发展中心低速空气动力研究所 Ring volume control unit for improving supersonic coanda jet flow adhesion pressure ratio
EP4140879A1 (en) * 2021-08-22 2023-03-01 Illinois Institute Of Technology Bi-directional coanda valve
US11840327B2 (en) 2021-08-22 2023-12-12 Illinois Institute Of Technology Bi-directional Coanda valve

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