JP4876273B2 - 周囲を流体が流れる表面上の境界層領域における摩擦損失の低減 - Google Patents
周囲を流体が流れる表面上の境界層領域における摩擦損失の低減 Download PDFInfo
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- JP4876273B2 JP4876273B2 JP2008504680A JP2008504680A JP4876273B2 JP 4876273 B2 JP4876273 B2 JP 4876273B2 JP 2008504680 A JP2008504680 A JP 2008504680A JP 2008504680 A JP2008504680 A JP 2008504680A JP 4876273 B2 JP4876273 B2 JP 4876273B2
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- aerodynamic
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- 239000012530 fluid Substances 0.000 title claims description 39
- 230000009467 reduction Effects 0.000 title description 3
- 239000000463 material Substances 0.000 claims description 43
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/10—Influencing flow of fluids around bodies of solid material
- F15D1/12—Influencing flow of fluids around bodies of solid material by influencing the boundary layer
-
- 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
- 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
- B64C2230/22—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
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Jet Pumps And Other Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Laminated Bodies (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
2 入口
3 出口
4 鋸歯状部
5 絞り部
6 第1材料層
7 第2材料層
7’ 第2材料層
8 翼
9 小孔
10 航空機胴体
11 吸引チャンバ
Claims (15)
- 空気力学的外部構造の表面上の流れ状態を利用するための航空機の空気力学的外部構造であって、
周囲を流体が流れる表面と、
前記表面における複数のノズル(1)であって、自己調節にて、吸引によりノズル(1)を通って除去される流体の流れを絞るように構成されたノズル(1)とを、備え、
前記ノズル(1)は、入口(2)及び出口(3)によって定義される絞り部(5)を有しており、
前記絞り部(5)の内壁は、乱流を生成させる形状を有し、
前記絞り部(5)の前記内壁での乱流の生成に起因して、有効流れ断面積(Aw)が、前記絞り部(5)の前記入口(2)と前記出口(3)との間の圧力差が増加するにつれて自己調節的に減少する、空気力学的外部構造。 - 前記絞り部(5)は、迷路状に構成される、請求項1に記載の空気力学的外部構造。
- 前記絞り部(5)の前記内壁は、先鋭なエッジをもつ鋸歯状部(4)の形態で構成される、請求項1又は2に記載の空気力学的外部構造。
- 前記鋸歯状部(4)の断面は、連続的に繰り返される窪んだ波形状を有する、請求項3に記載の空気力学的外部構造。
- 前記鋸歯状部(4)は、前記絞り部(5)の前記内壁に沿って螺旋状に延びる、請求項3に記載の空気力学的外部構造。
- 前記絞り部(5)は、第1材料層(6)内に切り取られるか又は打ち抜かれる、請求項1に記載の空気力学的外部構造。
- 前記絞り部(5)は、基本的に、前記第1材料層(6)に対して平行に延びる、請求項6に記載の空気力学的外部構造。
- 前記絞り部(5)は、前記第1材料層(6)を完全に貫通する、請求項7に記載の空気力学的外部構造。
- 前記第1材料層(6)の両側は、第2材料層(7,7’)によって被覆され、該第2材料層にはそれぞれ、前記絞り部(5)の前記入口(2)及び前記出口(3)を形成するための開口が設けられる、請求項6から8のいずれか1項に記載の空気力学的外部構造。
- 前記第1材料層(6)の厚さは、前記第2材料層(7,7’)における前記開口のボア直径にほぼ対応する、請求項9に記載の空気力学的外部構造。
- 前記絞り部(5)は、基本的に、前記第1材料層(6)に対して垂直に延びる、請求項6に記載の空気力学的外部構造。
- 前記空気力学的外部構造は、単一の吸引チャンバを備え、該吸引チャンバによって複数の絞りノズル(1)の出口が吸引流に曝される、請求項1に記載の空気力学的外部構造。
- 外板が少なくとも部分的に、請求項1に記載の空気力学的外部構造の形態で構成される航空機。
- 翼、胴体、昇降舵装置、方向舵装置、及びエンジンフェアリングからなる空気力学的外部構造群のうち、航空機における1つ以上の空気力学的外部構造が、請求項1に記載の空気力学的外部構造の形態で少なくとも部分的に構成される、請求項13に記載の航空機。
- 周囲を流体が流れる表面(8)での摩擦損失を低減するために、請求項1の特徴を有する複数の絞りノズル(1)を使用する方法であって、
自己調節にて絞りノズル(1)により調整される、流体の体積流量が、単一の吸引チャンバ(11)の助力によって、複数の前記絞りノズル(1)を通して、前記表面(8)から吸引により除去されることで、周囲を流体が流れる前記表面(8)における流体の流れの境界層を、層流の範囲内に安定化させる方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67020005P | 2005-04-11 | 2005-04-11 | |
DE102005016570A DE102005016570A1 (de) | 2005-04-11 | 2005-04-11 | Reduzierung von Reibungsverlusten im Bereich von Grenzschichten an fluidumströmten Oberflächen |
US60/670,200 | 2005-04-11 | ||
DE102005016570.2 | 2005-04-11 | ||
PCT/EP2006/003094 WO2006108542A1 (en) | 2005-04-11 | 2006-04-05 | Reduction of frictional losses in the region of boundary layers on surfaces, around which a fluid flows |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008535720A JP2008535720A (ja) | 2008-09-04 |
JP4876273B2 true JP4876273B2 (ja) | 2012-02-15 |
Family
ID=37055255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008504680A Expired - Fee Related JP4876273B2 (ja) | 2005-04-11 | 2006-04-05 | 周囲を流体が流れる表面上の境界層領域における摩擦損失の低減 |
Country Status (9)
Country | Link |
---|---|
US (1) | US8091837B2 (ja) |
EP (1) | EP1868890B1 (ja) |
JP (1) | JP4876273B2 (ja) |
CN (1) | CN100586793C (ja) |
BR (1) | BRPI0608365A2 (ja) |
CA (1) | CA2597642C (ja) |
DE (2) | DE102005016570A1 (ja) |
RU (1) | RU2399555C2 (ja) |
WO (1) | WO2006108542A1 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7924399B2 (en) * | 2006-03-27 | 2011-04-12 | Asml Netherlands B.V. | Assembly comprising a conditioning system and at least one object, a conditioning system, a lithographic apparatus and methods |
DE102009043489A1 (de) | 2009-09-30 | 2011-03-31 | Airbus Operations Gmbh | Vorrichtung zur Grenzschichtabsaugung und Verbundbauteil hierfür |
EP2558362B1 (de) * | 2010-04-12 | 2018-07-25 | Airbus Operations GmbH | Profilplattenabschnitt zur verwendung als aussenwandung eines strömungskörpers, sowie strömungskörper-bauteil mit einer fluid-absaugvorrichtung |
GB201114433D0 (en) * | 2011-08-22 | 2011-10-05 | Airbus Operations Ltd | Wing leading edge venting |
US9746010B2 (en) * | 2014-04-09 | 2017-08-29 | University Of Florida Research Foundation, Incorporated | Noise control of cavity flows using active and/or passive receptive channels |
US9758240B2 (en) * | 2014-04-25 | 2017-09-12 | Rohr, Inc. | Modular plenum and duct system for controlling boundary layer airflow |
US10000277B2 (en) * | 2014-10-16 | 2018-06-19 | Rohr, Inc. | Perforated surface for suction-type laminar flow control |
DE102015110782A1 (de) | 2015-07-03 | 2017-01-05 | Airbus Operations Gmbh | Integrales Bauteil mit einer Einrichtung zur aktiven Strömungskontrolle |
ES2688537T3 (es) * | 2016-01-12 | 2018-11-05 | Airbus Operations, S.L. | Borde de ataque con control del flujo laminar y procedimiento de fabricación del mismo |
US20170198988A1 (en) * | 2016-01-13 | 2017-07-13 | Hamilton Sundstrand Corporation | Vanes for heat exchangers |
US10605280B2 (en) * | 2016-11-06 | 2020-03-31 | The Boeing Company | Phase tailoring for resonant flow devices |
WO2018196810A1 (zh) * | 2017-04-26 | 2018-11-01 | 朱晓义 | 从流体连续性中获得更大推动力和升力的飞行器 |
CN107150788A (zh) | 2017-04-26 | 2017-09-12 | 朱晓义 | 一种产生更大升力的固定翼飞行器 |
EP3428062A1 (en) * | 2017-07-11 | 2019-01-16 | Airbus Operations GmbH | A leading edge structure for a flow control system of an aircraft |
EP3466810B1 (en) * | 2017-10-09 | 2022-07-13 | Airbus Operations GmbH | Vertical tail unit for flow control |
EP3466811B1 (en) * | 2017-10-09 | 2023-06-21 | Airbus Operations GmbH | Vertical tail unit for flow control |
GB2567683A (en) | 2017-10-20 | 2019-04-24 | Airbus Operations Ltd | Apparatus for laminar flow control |
ES2943266T3 (es) | 2017-12-28 | 2023-06-12 | Airbus Operations Gmbh | Estructura de borde de ataque para un sistema de control de flujo de una aeronave |
US11433990B2 (en) | 2018-07-09 | 2022-09-06 | Rohr, Inc. | Active laminar flow control system with composite panel |
CN109033645B (zh) * | 2018-07-31 | 2023-04-07 | 中国人民解放军海军工程大学 | 一种新型船舵防腐蚀电极及其设计方法 |
RU2734664C1 (ru) * | 2020-04-03 | 2020-10-21 | Федеральное Государственное Казенное Военное Образовательное Учреждение Высшего Образования "Тихоокеанское Высшее Военно-Морское Училище Имени С.О. Макарова" Министерства Обороны Российской Федерации (Г. Владивосток) | Перфорированная конструкция внешней поверхности тела вращения с комбинированными отверстиями и каналом отсоса |
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2005
- 2005-04-11 DE DE102005016570A patent/DE102005016570A1/de not_active Ceased
-
2006
- 2006-04-05 US US11/911,138 patent/US8091837B2/en not_active Expired - Fee Related
- 2006-04-05 WO PCT/EP2006/003094 patent/WO2006108542A1/en active Application Filing
- 2006-04-05 JP JP2008504680A patent/JP4876273B2/ja not_active Expired - Fee Related
- 2006-04-05 CA CA2597642A patent/CA2597642C/en not_active Expired - Fee Related
- 2006-04-05 CN CN200680011501A patent/CN100586793C/zh not_active Expired - Fee Related
- 2006-04-05 RU RU2007139985/11A patent/RU2399555C2/ru not_active IP Right Cessation
- 2006-04-05 DE DE602006007327T patent/DE602006007327D1/de active Active
- 2006-04-05 BR BRPI0608365-0A patent/BRPI0608365A2/pt not_active IP Right Cessation
- 2006-04-05 EP EP06724042A patent/EP1868890B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2583118A1 (fr) * | 1985-06-10 | 1986-12-12 | Irrifrance Sa Ste Nle | Dispositif dissipateur d'energie a chicanes et cavites a effet tourbillonnaire |
JP2003503263A (ja) * | 1999-06-24 | 2003-01-28 | ビ−エイイ− システムズ パブリック リミテッド カンパニ− | 層流制御システムと、それと共に使用するためのサクションパネル |
Also Published As
Publication number | Publication date |
---|---|
EP1868890A1 (en) | 2007-12-26 |
RU2007139985A (ru) | 2009-05-20 |
CN101155727A (zh) | 2008-04-02 |
JP2008535720A (ja) | 2008-09-04 |
CA2597642A1 (en) | 2006-10-19 |
WO2006108542A1 (en) | 2006-10-19 |
EP1868890B1 (en) | 2009-06-17 |
RU2399555C2 (ru) | 2010-09-20 |
DE602006007327D1 (de) | 2009-07-30 |
US20090266937A1 (en) | 2009-10-29 |
CA2597642C (en) | 2012-12-18 |
US8091837B2 (en) | 2012-01-10 |
BRPI0608365A2 (pt) | 2009-12-29 |
CN100586793C (zh) | 2010-02-03 |
DE102005016570A1 (de) | 2006-10-19 |
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