FR2767361B1 - Dispositif destine a influencer le decollement d'un courant d'un corps entoure par le courant - Google Patents
Dispositif destine a influencer le decollement d'un courant d'un corps entoure par le courantInfo
- Publication number
- FR2767361B1 FR2767361B1 FR9810059A FR9810059A FR2767361B1 FR 2767361 B1 FR2767361 B1 FR 2767361B1 FR 9810059 A FR9810059 A FR 9810059A FR 9810059 A FR9810059 A FR 9810059A FR 2767361 B1 FR2767361 B1 FR 2767361B1
- Authority
- FR
- France
- Prior art keywords
- current
- flow
- influencing
- immersed
- shear layer
- 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 - Fee Related
Links
- 238000000926 separation method Methods 0.000 abstract 2
- 238000007664 blowing Methods 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C23/00—Influencing air flow over aircraft surfaces, not otherwise provided for
- B64C23/04—Influencing air flow over aircraft surfaces, not otherwise provided for by generating shock waves
-
- 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
- B64C2230/08—Boundary layer controls by influencing fluid flow by means of surface cavities, i.e. net fluid flow is null
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C2230/00—Boundary layer controls
- B64C2230/20—Boundary layer controls by passively inducing fluid flow, e.g. by means of a pressure difference between both ends of a slot or duct
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C2230/00—Boundary layer controls
- B64C2230/24—Boundary layer controls by using passive resonance cavities, e.g. without transducers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C2230/00—Boundary layer controls
- B64C2230/28—Boundary layer controls at propeller or rotor blades
-
- 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)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Surgical Instruments (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19735269A DE19735269C1 (de) | 1997-08-14 | 1997-08-14 | Vorrichtung zur Beeinflussung der Ablösung einer Strömung von einem umströmten Körper |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2767361A1 FR2767361A1 (fr) | 1999-02-19 |
FR2767361B1 true FR2767361B1 (fr) | 2002-01-25 |
Family
ID=7838975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9810059A Expired - Fee Related FR2767361B1 (fr) | 1997-08-14 | 1998-08-05 | Dispositif destine a influencer le decollement d'un courant d'un corps entoure par le courant |
Country Status (4)
Country | Link |
---|---|
US (1) | US6176454B1 (fr) |
DE (1) | DE19735269C1 (fr) |
FR (1) | FR2767361B1 (fr) |
GB (1) | GB2333344B (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6390418B1 (en) * | 1999-02-25 | 2002-05-21 | United Technologies Corporation | Tangentially directed acoustic jet controlling boundary layer |
US6109566A (en) * | 1999-02-25 | 2000-08-29 | United Technologies Corporation | Vibration-driven acoustic jet controlling boundary layer separation |
US6379110B1 (en) * | 1999-02-25 | 2002-04-30 | United Technologies Corporation | Passively driven acoustic jet controlling boundary layers |
US6945031B2 (en) * | 2003-02-21 | 2005-09-20 | The Nordam Group, Inc. | Recessed engine nacelle |
US20060102801A1 (en) * | 2004-11-01 | 2006-05-18 | The Boeing Company | High-lift distributed active flow control system and method |
US8033510B2 (en) * | 2005-08-09 | 2011-10-11 | The Boeing Company | Lift augmentation system and associated method |
US7635107B2 (en) * | 2005-08-09 | 2009-12-22 | The Boeing Company | System for aerodynamic flows and associated method |
US9701399B1 (en) | 2013-03-18 | 2017-07-11 | Techdyne Llc | Parasitic drag induced boundary layer reduction system and method |
CN104859845B (zh) * | 2015-05-16 | 2017-04-05 | 中国航空工业集团公司哈尔滨空气动力研究所 | 机翼射流流动控制机构 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE264144C (fr) | ||||
US2783008A (en) * | 1951-07-28 | 1957-02-26 | Jr Albert G Bodine | Acoustical boundary layer control for aerodynamic bodies |
FR2051956A5 (fr) * | 1969-07-02 | 1971-04-09 | Bertin & Cie | |
US3774867A (en) * | 1972-06-27 | 1973-11-27 | Us Air Force | Acoustic wing stall delaying device |
US4630997A (en) * | 1981-11-24 | 1986-12-23 | Fondation Cousteau | Apparatus for producing a force when in a moving fluid |
DE3342421A1 (de) * | 1983-11-24 | 1985-06-05 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Verfahren zur stabilisierenden beeinflussung abgeloester laminarer grenzschichten |
US4697769A (en) * | 1984-04-23 | 1987-10-06 | Flow Industries, Inc. | Method and apparatus for controlling bound vortices in the vicinity of lifting surfaces |
DE3522943A1 (de) * | 1985-06-27 | 1987-01-08 | Messerschmitt Boelkow Blohm | Einrichtung zur verringerung des turbulenten reibungswiderstandes bei luft-, raum- und wasserfahrzeugen |
US4802642A (en) | 1986-10-14 | 1989-02-07 | The Boeing Company | Control of laminar flow in fluids by means of acoustic energy |
US4991433A (en) * | 1989-09-21 | 1991-02-12 | Applied Acoustic Research | Phase track system for monitoring fluid material within a container |
ES2115681T3 (es) * | 1991-10-14 | 1998-07-01 | Aozt Aviat Contsern Ekip | Metodo para controlar la capa limite sobre la superficie aerodinamica de un vehiculo volante, y vehiculo volante. |
-
1997
- 1997-08-14 DE DE19735269A patent/DE19735269C1/de not_active Expired - Fee Related
-
1998
- 1998-08-05 FR FR9810059A patent/FR2767361B1/fr not_active Expired - Fee Related
- 1998-08-07 GB GB9817109A patent/GB2333344B/en not_active Expired - Fee Related
- 1998-08-13 US US09/133,858 patent/US6176454B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6176454B1 (en) | 2001-01-23 |
FR2767361A1 (fr) | 1999-02-19 |
GB9817109D0 (en) | 1998-10-07 |
GB2333344A (en) | 1999-07-21 |
DE19735269C1 (de) | 1999-01-28 |
GB2333344B (en) | 2002-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20080430 |