WO2002083497A1 - Extremite d'aile cylindrique a fente helicoidale - Google Patents
Extremite d'aile cylindrique a fente helicoidale Download PDFInfo
- Publication number
- WO2002083497A1 WO2002083497A1 PCT/FR2002/001232 FR0201232W WO02083497A1 WO 2002083497 A1 WO2002083497 A1 WO 2002083497A1 FR 0201232 W FR0201232 W FR 0201232W WO 02083497 A1 WO02083497 A1 WO 02083497A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wing
- helical slot
- cylindrical
- drag
- speed
- Prior art date
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
- B64C23/06—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices
- B64C23/065—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices at the wing tips
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
Definitions
- the present invention relates to a device having the shape of a goose feather cut outwards and towards the leading edge, the shaft of which represents a cylindrical cavity in a spiral and / or helical slot .
- the assembly makes it possible to reduce the induced drag, the marginal vortex called vortex and to increase the smoothness.
- wing Fixed integral with the end of the wing or articulated always integral with this end of wing, it can adapt to all profiles, in particular to the wings of airplanes, gliders, the blades of helicopters and the ends of propellers propelling, propelling, or propelled like the blades of wind turbines or for devices such as boats or submarines using the lift or the direction in their displacement three axes, vertical, horizontal and in laces.
- this invention makes it possible to use weaker motorizations, to make longer and faster journeys while consuming less energy or producing more for wind turbines for example, to use higher loads, d '' increase and approach transition / arrival / departure traffic at aerodromes or airports with greater security:
- Induced drag ' Cxi (Cz 2 / ⁇ ) ⁇ p V 2 .S (result in Newtons)
- Cxi Coefficient of induced drag
- Cz Lift coefficient
- p density of air
- V speed in meters per second
- the plane has a root of 17.7m, a wing tip of 3.97m and a tapering of 0.224 (end cord / root cord) which imply an angle of arrow.
- N ° FR 405 177 A G.BARBAUDY of 9/11/1909
- N ° US 2 075 817 A A (AWLOERKE) of 6/4/1937
- N ° FR 57 646 E PMLEMOIGNE
- N ° US 3 596 854 A HANEY WILLIAM R JR
- N ° DE 31 27 257 A V FLUGTECHNISCHE WERKE
- a wing model is made of 1.32m wingspan with an elongation of 8 to adapt, to the scale 1 / 7,055, the prototypes at the ends of the wings and pass them in a wind tunnel. Work spread over four test campaigns, twenty two pairs of significantly different prototypes were tested. It follows that the Cz is increasing on all prototypes equipped with a tongue (28) without helical slot have a gain of 2.8% to 3.2% on No. 18, from 3.2% to 3 , 6% on n ° 19 and 3.6% to 4% on n ° 20, lift which increases the smoothness at the same time.
- this cylindrical wing end could also be substantially cylindrical • for reasons of pressure and temperature supporting studies under normal conditions when the slit is helical or substantially helical, the pitch of 1 * helicoid (29) and the acceleration of the centripetal force or induced flow of lower surface (26) depend on the pressure with respect to the relative wind speed (16) in proportion to the incidence, weight and master, torque '.
- this helical slot (4) of thickness (x) can wind from -180 ° to + 360 ° at an angle (4) ⁇ ), therefore one step, around and over the entire depth of the cylindrical cavity to exit linear at the trailing edge (BF).
- Profile view of the device attached to the end of the wing as a body, in continuity with the cylinder with a helical slot and the same diametral curve, this tongue (18), a sort of semi-circular ovoid in the shape of a cut goose feather , follows the upper surface (10) of the wing towards and up to the leading edge (1).
- the fixed or mobile assembly can move parallel to the profile rope (6) towards the leading edge (l) or towards the trailing edge (2) or have a negative or positive setting depending on the flight parameters used.
- leading edges (l) on a wing profile are studied to allow to maintain a flow with a minimum of drag.
- the helical slot located after the cylindrical ovoid entry necessarily creates a drag along its entire length.
- the assembly comprising: the tongue (18), the ovoid cylindrical inlet, the cylinder with the helical slot, the junction strips of this helical slot, one piece with the aerodynamic rigid junction recess (28) and the support in shape of the profile, the whole fixed to the profile of the end of the wing (22) in a perfectly aerodynamic aspect.
- Destruction of the vortex at an incidence of flight at the end of the wing, the vortex, centripetal overpressure towards the upper surface, is created on three different pressures: 1 /
- the low pressure flow which is a downward air flow behind the trailing edge caused by the acceleration due to the curvature of the upper surface (10) in the relative wind (16).
- the trailing edge (2) end wing may be positioned substantially in preliminary or. rear from the middle of the thickness of the helical slot (4).
- the incidence or angle of attack of the wing increases the Cz, the induced drag and the vortex at the end of the wing.
- the higher the incidence of the wing, the greater the angle of discharge towards the end. of the wing will be large and the more the vortex will intensify: Cxi (Cz 2 / ⁇ ).
- MV 2 / r r being the radius of the device, M the density
- this cylindrical wing end device with helical slot (25) is positioned parallel or on the profile cord starting from the leading edge (l) start of the tongue (i ⁇ ) up to l helical cylindrical entry (substantially the location of the maximum thickness of the wing (23)) and can exceed the trailing edge (2) up to 1/3 of the depth of the wing end cord .
- the cylindrical wing end device with helical slot (25) is fixed integral at the end of the wing.
- Made with a material that is both extremely dense and light in this case an aluminum alloy, titanium or composites with fiberglass, aramid (evlar), carbon, a mixture of these or even more resistant future materials.
- this cylindrical wing end device with helical slot (25) can be movable vertically parallel to the profile rope or not, depending on the incidences used at the desired or future flight parameters adapted to the aircraft.
- the cylindrical wing end device with helical slot (25) is predestined for icing in low layers by high humidity due to the approximation of temperature / dew point.
- the device in order to neutralize 'the frost and ice in all its thickness and depth, is provided either with an electrical resistance,' or , with a duct for air or hot liquid, or with pipelines with glycol exhausts, or other systems and products that would be used in the future.
- the invention consists:
- a wing end device disposed integrally or articulated on said end and having the object of increasing the lift, reducing the induced drag and the marginal vortex called vortex to increase the fineness, with the appearance of '' a feather of a goose or a tongue (l en) cut in an ovoid bevel (15) on the side opposite to the fixing of the device (24) and towards the leading edge (l) including the shaft or the body representing a cylindrical or substantially cylindrical, substantially spiral and / or substantially spiral " slot slot helical drunk substantially helical and the tip of said tongue (18) always or substantially always in the same diameter (5) and that said device starts from the leading edge (l) on the upper surface (10) and that it widens until it forms a shape 5.
- the device can be integral with the wing initially wedged or articulated controlled vertically parallel to the profile rope (-6) for a negative or positive wedging on the axis of the hearth or / and move circularly on itself towards the left or right or moving è ⁇ forward or backward along the profile cbrdè equally integral with the wing according to 'the parameters used.
- the shape of the device is adapted to the flow rates and speed as well as to the wing or elongation surfaces of the wing considered.
- the mechanical characteristics of the device are determined to be - without deformation at all flow speeds and the materials used must meet the criteria of lightness such as aluminum or titanium alloy on flying machines.
- the substantially helical slot (19) of the device is provided over its entire course with connecting strips (15) which can be profiled and substantially parallel to the cylindrical axis and their number is determined according to the forces exerted at the most stressed places. of the structure of the assembly (21).
- the apparatus may be provided with electric resistance deicing system for example, or by projection of hot flows or liquid deicer.
- the substantially helical slot of the device can be and if necessary, subdivided into several slots.
- Figure 1 front view of the leading edge of the helical cylindrical wing end * and of the assembly.
- Figure 2 top view of the cylindrical wing end with short helical depth and the wing.
- Figure 3 top view of the cylindrical wing tip at depth : long helical and wing
- Figure 4 view of the right profile of the end of the helical cylindrical wing with short and long helical depth.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL15832702A IL158327A0 (en) | 2001-04-11 | 2002-04-09 | Cylindrical wing tip with helical slot |
EP02761928A EP1456081B1 (fr) | 2001-04-11 | 2002-04-09 | Extremite d'aile cylindrique a fente helicoidale |
DE60232462T DE60232462D1 (de) | 2001-04-11 | 2002-04-09 | Zylindrische flügelspitze mit schraubenförmigem schlitz |
US10/474,879 US6892988B2 (en) | 2001-04-11 | 2002-04-09 | Cylindrical wing tip with helical slot |
AT02761928T ATE432213T1 (de) | 2001-04-11 | 2002-04-09 | Zylindrische flügelspitze mit schraubenförmigem schlitz |
CA002443940A CA2443940C (fr) | 2001-04-11 | 2002-04-09 | Extremite d'aile cylindrique a fente helicoidale |
IL158327A IL158327A (en) | 2001-04-11 | 2003-10-09 | Cylindrical wing tip with helical groove |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0104998A FR2823541B1 (fr) | 2001-04-11 | 2001-04-11 | Extremite d'aile cylindrique a fente helicoidale |
FR01/04998 | 2001-04-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002083497A1 true WO2002083497A1 (fr) | 2002-10-24 |
Family
ID=8862251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/001232 WO2002083497A1 (fr) | 2001-04-11 | 2002-04-09 | Extremite d'aile cylindrique a fente helicoidale |
Country Status (8)
Country | Link |
---|---|
US (1) | US6892988B2 (fr) |
EP (1) | EP1456081B1 (fr) |
AT (1) | ATE432213T1 (fr) |
CA (1) | CA2443940C (fr) |
DE (1) | DE60232462D1 (fr) |
FR (1) | FR2823541B1 (fr) |
IL (2) | IL158327A0 (fr) |
WO (1) | WO2002083497A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2883935A1 (fr) | 2005-04-01 | 2006-10-06 | Christian Hugues | Dispositif d'extremite de profil d'aile ou de gouverme a fentes helicoidales croisees pour utilisation en milieu aquatique |
US7270214B1 (en) | 2004-06-16 | 2007-09-18 | Westerngeco L.L.C. | Method and apparatus for reducing and extracting wing-tip vortex energy |
WO2009141536A1 (fr) | 2008-05-14 | 2009-11-26 | Christian Hugues | Dispositif d'extremite d'aile, de pale d'eolienne ou d' hydrolienne permettant de diminuer voire d'annuler les tourbillons marginaux dits vortex. |
US9039380B2 (en) | 2011-04-30 | 2015-05-26 | General Electric Company | Winglet for a wind turbine rotor blade |
US9103325B2 (en) | 2012-03-20 | 2015-08-11 | General Electric Company | Winglet for a wind turbine rotor blade |
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AUPR982302A0 (en) * | 2002-01-03 | 2002-01-31 | Pax Fluid Systems Inc. | A fluid flow controller |
AUPR982502A0 (en) * | 2002-01-03 | 2002-01-31 | Pax Fluid Systems Inc. | A heat exchanger |
EA005545B1 (ru) * | 2002-01-03 | 2005-04-28 | Пакс Сайентифик, Инк. | Генератор вихревого кольца |
AU2003903386A0 (en) * | 2003-07-02 | 2003-07-17 | Pax Scientific, Inc | Fluid flow control device |
KR101168098B1 (ko) * | 2003-11-04 | 2012-07-24 | 팍스 싸이언티픽 인코퍼레이션 | 유체 순환 시스템 |
WO2005073560A1 (fr) * | 2004-01-30 | 2005-08-11 | Pax Scientific, Inc | Rotor a flux en vortex |
EA009581B1 (ru) * | 2004-01-30 | 2008-02-28 | Пакс Сайентифик, Инк. | Корпус для центрифугальных вентиляторов, насосов или турбин |
US20080232973A1 (en) * | 2005-07-21 | 2008-09-25 | Saint Louis University | Propeller blade |
US7644892B1 (en) * | 2006-07-06 | 2010-01-12 | Alford Jr Lionel D | Blended winglet |
WO2008042251A2 (fr) | 2006-09-29 | 2008-04-10 | Pax Streamline, Inc. | Ventilateur hélicoïdal |
US20090308472A1 (en) * | 2008-06-15 | 2009-12-17 | Jayden David Harman | Swirl Inducer |
US8651813B2 (en) * | 2009-05-29 | 2014-02-18 | Donald James Long | Fluid dynamic body having escapelet openings for reducing induced and interference drag, and energizing stagnant flow |
US8561938B2 (en) | 2010-05-31 | 2013-10-22 | Executive Access Inc. | Directional control for a helicopter |
GB201011843D0 (en) * | 2010-07-14 | 2010-09-01 | Airbus Operations Ltd | Wing tip device |
US8857761B2 (en) | 2010-10-27 | 2014-10-14 | Ata Engineering, Inc. | Variable geometry aircraft pylon structure and related operation techniques |
US9567867B2 (en) | 2011-09-14 | 2017-02-14 | Ata Engineering, Inc. | Methods and apparatus for deployable swirl vanes |
WO2013056300A1 (fr) * | 2011-10-18 | 2013-04-25 | Newcastle Innovation Limited | Générateur de tourbillons |
US9399919B2 (en) | 2012-12-31 | 2016-07-26 | General Electric Company | Extension tip sleeve for wind turbine blade |
US10318903B2 (en) | 2016-05-06 | 2019-06-11 | General Electric Company | Constrained cash computing system to optimally schedule aircraft repair capacity with closed loop dynamic physical state and asset utilization attainment control |
GB2570170B (en) * | 2018-06-15 | 2020-03-04 | James Punter Thomas | Wing-tip device |
JP2020121683A (ja) * | 2019-01-31 | 2020-08-13 | 三菱重工業株式会社 | 流体調整装置及び航空機 |
US11396367B2 (en) * | 2019-05-08 | 2022-07-26 | The Boeing Company | Vortex reduction apparatus for use with airfoils |
CN112926148B (zh) * | 2021-01-28 | 2023-02-03 | 西北工业大学 | 一种考虑三维效应影响下的螺旋桨翼型气动外形设计方法 |
Citations (11)
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FR405177A (fr) | 1909-07-17 | 1909-12-22 | Georges Barbaudy | Dispositif pour sustenteur d'aviation |
US2075817A (en) | 1934-08-17 | 1937-04-06 | Arthur W Loerke | Wing vortex reducer |
US2576981A (en) * | 1949-02-08 | 1951-12-04 | Vogt Richard | Twisted wing tip fin for airplanes |
FR57646E (fr) | 1947-08-08 | 1953-03-17 | Perfectionnements apportés aux engins de navigation aérienne | |
US3596854A (en) | 1969-06-09 | 1971-08-03 | William R Haney Jr | Vortex generator for airfoil structures |
FR2294085A1 (fr) * | 1974-12-11 | 1976-07-09 | Garrett Corp | Procede et appareil de controle de tourbillon produit a une extremite d'un vehicule |
DE3127257A1 (de) | 1981-07-10 | 1983-01-27 | Vereinigte Flugtechnische Werke Gmbh, 2800 Bremen | "verfahren zur verminderung des induzierten widestandes eines auftriebserzeugenden tragfluegels sowie vorrichtung zu seiner durchfuehrung" |
US4477042A (en) * | 1981-01-19 | 1984-10-16 | Griswold Ii Roger W | Vortex alleviating wing tip |
US5102068A (en) * | 1991-02-25 | 1992-04-07 | Gratzer Louis B | Spiroid-tipped wing |
US5297764A (en) * | 1993-03-15 | 1994-03-29 | Haney William R | Air foil providing vortex attenuation |
FR2780700A1 (fr) | 1998-07-02 | 2000-01-07 | Christian Hugues | Cavite cylindrique en spirale |
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US4533101A (en) * | 1984-02-02 | 1985-08-06 | The United States Of America As Represented By The Administrator Of The National Aeronautics & Space Administration | Wingtip vortex propeller |
US5332177A (en) * | 1993-09-09 | 1994-07-26 | Boyle Jr James J | Aircraft |
US6474604B1 (en) * | 1999-04-12 | 2002-11-05 | Jerry E. Carlow | Mobius-like joining structure for fluid dynamic foils |
US6371414B1 (en) * | 1999-07-16 | 2002-04-16 | Lockheed Martin Corporation | System and method for manipulating and controlling fluid flow over a surface |
US6260809B1 (en) * | 2000-04-05 | 2001-07-17 | United Technologies Corporation | Ovate loop for rotary-wing blades |
-
2001
- 2001-04-11 FR FR0104998A patent/FR2823541B1/fr not_active Expired - Fee Related
-
2002
- 2002-04-09 IL IL15832702A patent/IL158327A0/xx unknown
- 2002-04-09 CA CA002443940A patent/CA2443940C/fr not_active Expired - Lifetime
- 2002-04-09 WO PCT/FR2002/001232 patent/WO2002083497A1/fr not_active Application Discontinuation
- 2002-04-09 DE DE60232462T patent/DE60232462D1/de not_active Expired - Lifetime
- 2002-04-09 EP EP02761928A patent/EP1456081B1/fr not_active Expired - Lifetime
- 2002-04-09 AT AT02761928T patent/ATE432213T1/de not_active IP Right Cessation
- 2002-04-09 US US10/474,879 patent/US6892988B2/en not_active Expired - Fee Related
-
2003
- 2003-10-09 IL IL158327A patent/IL158327A/en not_active IP Right Cessation
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR405177A (fr) | 1909-07-17 | 1909-12-22 | Georges Barbaudy | Dispositif pour sustenteur d'aviation |
US2075817A (en) | 1934-08-17 | 1937-04-06 | Arthur W Loerke | Wing vortex reducer |
FR57646E (fr) | 1947-08-08 | 1953-03-17 | Perfectionnements apportés aux engins de navigation aérienne | |
US2576981A (en) * | 1949-02-08 | 1951-12-04 | Vogt Richard | Twisted wing tip fin for airplanes |
US3596854A (en) | 1969-06-09 | 1971-08-03 | William R Haney Jr | Vortex generator for airfoil structures |
FR2294085A1 (fr) * | 1974-12-11 | 1976-07-09 | Garrett Corp | Procede et appareil de controle de tourbillon produit a une extremite d'un vehicule |
US4477042A (en) * | 1981-01-19 | 1984-10-16 | Griswold Ii Roger W | Vortex alleviating wing tip |
DE3127257A1 (de) | 1981-07-10 | 1983-01-27 | Vereinigte Flugtechnische Werke Gmbh, 2800 Bremen | "verfahren zur verminderung des induzierten widestandes eines auftriebserzeugenden tragfluegels sowie vorrichtung zu seiner durchfuehrung" |
US5102068A (en) * | 1991-02-25 | 1992-04-07 | Gratzer Louis B | Spiroid-tipped wing |
US5297764A (en) * | 1993-03-15 | 1994-03-29 | Haney William R | Air foil providing vortex attenuation |
FR2780700A1 (fr) | 1998-07-02 | 2000-01-07 | Christian Hugues | Cavite cylindrique en spirale |
WO2000001580A1 (fr) | 1998-07-02 | 2000-01-13 | Christian Hugues | Bout d'aile cylindrique et en spirale |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7270214B1 (en) | 2004-06-16 | 2007-09-18 | Westerngeco L.L.C. | Method and apparatus for reducing and extracting wing-tip vortex energy |
FR2883935A1 (fr) | 2005-04-01 | 2006-10-06 | Christian Hugues | Dispositif d'extremite de profil d'aile ou de gouverme a fentes helicoidales croisees pour utilisation en milieu aquatique |
WO2009141536A1 (fr) | 2008-05-14 | 2009-11-26 | Christian Hugues | Dispositif d'extremite d'aile, de pale d'eolienne ou d' hydrolienne permettant de diminuer voire d'annuler les tourbillons marginaux dits vortex. |
US8585371B2 (en) | 2008-05-14 | 2013-11-19 | Christian Hugues | Wingtip device for the tip of a wing, blade of a wind generator or marine generator for reducing or even eliminating marginal swirl |
US9039380B2 (en) | 2011-04-30 | 2015-05-26 | General Electric Company | Winglet for a wind turbine rotor blade |
US9103325B2 (en) | 2012-03-20 | 2015-08-11 | General Electric Company | Winglet for a wind turbine rotor blade |
US10047719B2 (en) | 2012-03-20 | 2018-08-14 | General Electric Company | Winglet for a wind turbine rotor blade |
Also Published As
Publication number | Publication date |
---|---|
IL158327A (en) | 2009-09-22 |
IL158327A0 (en) | 2004-05-12 |
CA2443940A1 (fr) | 2002-10-24 |
EP1456081A1 (fr) | 2004-09-15 |
FR2823541A1 (fr) | 2002-10-18 |
ATE432213T1 (de) | 2009-06-15 |
EP1456081B1 (fr) | 2009-05-27 |
FR2823541B1 (fr) | 2003-05-23 |
US6892988B2 (en) | 2005-05-17 |
US20040195461A1 (en) | 2004-10-07 |
DE60232462D1 (de) | 2009-07-09 |
CA2443940C (fr) | 2009-01-13 |
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