JP5379148B2 - 乱流エアジェット内の渦構造を制御する装置と方法 - Google Patents
乱流エアジェット内の渦構造を制御する装置と方法 Download PDFInfo
- Publication number
- JP5379148B2 JP5379148B2 JP2010532670A JP2010532670A JP5379148B2 JP 5379148 B2 JP5379148 B2 JP 5379148B2 JP 2010532670 A JP2010532670 A JP 2010532670A JP 2010532670 A JP2010532670 A JP 2010532670A JP 5379148 B2 JP5379148 B2 JP 5379148B2
- Authority
- JP
- Japan
- Prior art keywords
- needles
- flow
- needle
- pair
- corona discharge
- 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
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000011161 development Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000541 pulsatile effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/44—Nozzles having means, e.g. a shield, reducing sound radiation in a specified direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/04—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of exhaust outlets or jet pipes
- B64D33/06—Silencing exhaust or propulsion jets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/78—Other construction of jet pipes
- F02K1/82—Jet pipe walls, e.g. liners
- F02K1/827—Sound absorbing structures or liners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/16—Fluid modulation at a certain frequency
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Plasma Technology (AREA)
- Air-Flow Control Members (AREA)
- Catching Or Destruction (AREA)
- Central Air Conditioning (AREA)
- Elimination Of Static Electricity (AREA)
- Electrostatic Separation (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Ventilation (AREA)
- Duct Arrangements (AREA)
Description
空力音響学の今度の第7回ヨーロッパプログラムの戦略的ゴールは、2010年までに航空機音響の向上に対する基本的対策と予備計画を案出することであり、2020年までに航空機産業においてこれらを実行するための技術的回答と根拠ある推奨案を案出することである。様々なノイズ源に取り組むバランスのとれた取り組みが、更なるノイズ(ファンのノイズ、機体のノイズ等)の低減を行うために必要であるが、それにも拘らず、ジェットノイズは、この複雑な仕事を行う上での障害となっている。更に、ジェットノイズは、支配的なノイズ源として残存し、超音速航空機の更なる発展の主要な障害として残存する。従って、現在、航空機のエンジンノイズの低減問題への従来の取り組みの発展に加えて、乱流ジェットノイズのアクティブ制御を確実に行う意図に基づいた、上述のアイデアを含む新しいアイデアを前進させる必要がある。
Claims (16)
- 空気排出路から流出する乱流エアジェット内の渦構造を制御する装置であって、 交流電圧源に接続された少なくとも1対の針によって構成され、前記針の間にパルス状のコロナ放電を発生させ、前記針の一方が、流れに沿って配置され、前記針の他方が、前記流れを横切る方向に配置され、前記渦構造に対して前記パルス状のコロナ放電の共鳴効果を発生させる、装置。
- 前記少なくとも1対の針が、前記流れに近接して配置された、請求項1に記載の装置。
- 前記少なくとも1対の針が、前記流れから、1ミリメートルと2ミリメートルの間の距離だけ離れて配置された、請求項2に記載の装置。
- 2対の針を備える、請求項1から3のいずれか1項に記載の装置。
- 4対の針を備える、請求項1から3のいずれか1項に記載の装置。
- 6対の針を備える、請求項1から3のいずれか1項に記載の装置。
- 鋼製又は銅製の針を備える、請求項1から6のいずれか1項に記載の装置。
- 航空機の推進システムに取り付けられた、請求項1から7のいずれか1項に記載の装置。
- 乱流エアジェット内の渦構造を制御する方法であって、
交流電圧源に接続された少なくとも1対の針が、前記針の間にパルス状のコロナ放電を発生させ、前記針の一方が、流れに沿って配置され、前記針の他方が、前記流れを横切る方向に配置され、前記渦構造に対して前記パルス状のコロナ放電の共鳴効果を発生させる、方法。 - 前記少なくとも1対の針が、前記流れに近接して配置された、請求項9に記載の方法。
- 前記少なくとも1対の針が、前記流れから、1ミリメートルと2ミリメートルの間の距離だけ離れて配置された、請求項10に記載の方法。
- 2対の針を利用する、請求項9から11のいずれか1項に記載の方法。
- 4対の針を利用する、請求項9から11のいずれか1項に記載の方法。
- 6対の針を利用する、請求項9から11のいずれか1項に記載の方法。
- 鋼製又は銅製の針を利用する、請求項9から14のいずれか1項に記載の方法。
- 航空機の推進システムの空気排出路内に配置された針を利用する、請求項9から15のいずれか1項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2007141384 | 2007-11-07 | ||
RU2007141384/11A RU2357109C1 (ru) | 2007-11-07 | 2007-11-07 | Устройство и способ для воздействия на вихревые структуры в турбулентной воздушной струе |
PCT/IB2008/002980 WO2009060295A1 (en) | 2007-11-07 | 2008-11-06 | A device and method for controlling vortex structures in a turbulent air jet |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011503418A JP2011503418A (ja) | 2011-01-27 |
JP5379148B2 true JP5379148B2 (ja) | 2013-12-25 |
Family
ID=40455304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010532670A Expired - Fee Related JP5379148B2 (ja) | 2007-11-07 | 2008-11-06 | 乱流エアジェット内の渦構造を制御する装置と方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US8904801B2 (ja) |
EP (1) | EP2205847B1 (ja) |
JP (1) | JP5379148B2 (ja) |
CN (1) | CN101849094B (ja) |
AT (1) | ATE529623T1 (ja) |
BR (1) | BRPI0817363A2 (ja) |
CA (1) | CA2703226C (ja) |
RU (1) | RU2357109C1 (ja) |
WO (1) | WO2009060295A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102595758A (zh) * | 2011-01-12 | 2012-07-18 | 中国科学院工程热物理研究所 | 介质阻挡放电等离子体尾缘射流装置及方法 |
CN102681990A (zh) * | 2011-03-07 | 2012-09-19 | 鸿富锦精密工业(深圳)有限公司 | 文件管理系统及方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4044555A (en) * | 1958-09-30 | 1977-08-30 | Hayes International Corporation | Rear section of jet power plant installations |
US3644984A (en) * | 1969-03-04 | 1972-02-29 | Inoue K | Kinetic deposition of particulate materials |
US3647020A (en) * | 1970-02-02 | 1972-03-07 | Rohr Corp | Jet propulsion apparatus and operating method |
US5752381A (en) * | 1995-08-29 | 1998-05-19 | Speller; Kevin E. | Method and apparatus for vectoring thrust employing electrodes generating voltages greater than the dielectric breakdown voltage |
DE19542918A1 (de) * | 1995-11-17 | 1997-05-22 | Asea Brown Boveri | Vorrichtung zur Dämpfung thermoakustischer Druckschwingungen |
FR2750527B1 (fr) * | 1996-06-28 | 1998-08-21 | Bertin & Cie | Structures d'absorption de bruit et parois constituees de ces structures |
US5966452A (en) * | 1997-03-07 | 1999-10-12 | American Technology Corporation | Sound reduction method and system for jet engines |
US7334394B2 (en) * | 2003-09-02 | 2008-02-26 | The Ohio State University | Localized arc filament plasma actuators for noise mitigation and mixing enhancement |
CN1251981C (zh) * | 2004-01-14 | 2006-04-19 | 唐战和 | 弱碱性高纯饮用水工业化生产方法及设备 |
-
2007
- 2007-11-07 RU RU2007141384/11A patent/RU2357109C1/ru not_active IP Right Cessation
-
2008
- 2008-11-06 CA CA2703226A patent/CA2703226C/en not_active Expired - Fee Related
- 2008-11-06 US US12/741,669 patent/US8904801B2/en not_active Expired - Fee Related
- 2008-11-06 EP EP08846896A patent/EP2205847B1/en not_active Not-in-force
- 2008-11-06 AT AT08846896T patent/ATE529623T1/de not_active IP Right Cessation
- 2008-11-06 CN CN200880114962.2A patent/CN101849094B/zh not_active Expired - Fee Related
- 2008-11-06 WO PCT/IB2008/002980 patent/WO2009060295A1/en active Application Filing
- 2008-11-06 BR BRPI0817363 patent/BRPI0817363A2/pt not_active Application Discontinuation
- 2008-11-06 JP JP2010532670A patent/JP5379148B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US8904801B2 (en) | 2014-12-09 |
CN101849094A (zh) | 2010-09-29 |
EP2205847A1 (en) | 2010-07-14 |
JP2011503418A (ja) | 2011-01-27 |
CA2703226C (en) | 2017-02-14 |
CN101849094B (zh) | 2013-10-16 |
BRPI0817363A2 (pt) | 2015-03-31 |
RU2357109C1 (ru) | 2009-05-27 |
US20100326060A1 (en) | 2010-12-30 |
EP2205847B1 (en) | 2011-10-19 |
WO2009060295A8 (en) | 2010-05-20 |
WO2009060295A1 (en) | 2009-05-14 |
ATE529623T1 (de) | 2011-11-15 |
CA2703226A1 (en) | 2009-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Samimy et al. | Active control of a Mach 0.9 jet for noise mitigation using plasma actuators | |
US8226047B2 (en) | Reduction of tip vortex and wake interaction effects in energy and propulsion systems | |
EP1680589B1 (en) | Localized arc filament plasma actuators for noise mitigation and mixing enhancement | |
Arwatz et al. | Suction and oscillatory blowing actuator modeling and validation | |
Huang et al. | Plasma actuators for noise control | |
Jabbal et al. | Towards the noise reduction of piezoelectrical-driven synthetic jet actuators | |
Kopiev et al. | Jet noise control using the dielectric barrier discharge plasma actuators | |
JP5379148B2 (ja) | 乱流エアジェット内の渦構造を制御する装置と方法 | |
Raman et al. | Active flow control using integrated powered resonance tube actuators | |
Belmouss | Effect of electrode geometry on high energy spark discharges in air | |
Huang et al. | Atmospheric plasma actuators for aeroacoustic applications | |
Strickland et al. | Implementing resonant enhanced pulsed micro-actuators for the control of supersonic impinging jets | |
Raman et al. | Innovative actuators for active flow and noise control | |
Ashcroft et al. | Numerical modelling of wake-jet interaction with application to active noise control in turbomachinery | |
Schulz et al. | Active control of the blade passage frequency noise level of an axial fan with aeroacoustic sound sources | |
Zhao et al. | Rectangular cavity flow noise suppression using chevron treatment to the front edge at subsonic speeds | |
Naseer et al. | Effect of flow-induced surface vibration on deep cavity aeroacoustics | |
US10662876B2 (en) | Turbomachine vane comprising an electroacoustic source with improved assembly mode, row of outlet guide vanes and turbomachine comprising such a vane | |
Samimy et al. | Development and application of localized arc filament plasma actuators for jet flow and noise control | |
Solomon et al. | Control of supersonic resonant flows using high bandwidth micro-actuators | |
Faranosov et al. | Plasma-based active closed-loop control of instability waves in unexcited turbulent jet. Part 1. Free jet. | |
Bychkov et al. | Plasma-based active closed-loop control of instability waves in unexcited turbulent jet. Pt 1. Free jet | |
Samimy et al. | Active control of noise in supersonic jets using plasma actuators | |
US20240183366A1 (en) | Multi-Port Flow Control Actuators for Flow Control | |
JP4361866B2 (ja) | 能動的に騒音を低減するための装置と方法、ならびに航空機用のエンジン |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20111020 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20121016 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20121023 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20130121 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20130128 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130225 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130827 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130926 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5379148 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |