作者: JIBE 時間: 2025-3-21 21:00 作者: 發(fā)誓放棄 時間: 2025-3-22 02:14
Controlling in der Kommunalverwaltunggies are considered in turn : natural or controlled (HLFC) laminarity ; reduction of turbulent skin friction drag, induced drag, wave drag ....In each case, a short historical review is given, with examples of research results and emphasis on european cooperation. The different research phases are i作者: 乞丐 時間: 2025-3-22 05:36
Conference proceedings 2001ce held on 19-21 June 2000 in Potsdam, Germany. This conference, succeeding the European Fora on Laminar Flow Technology 1992 and 1996, was initiated by the European Drag Reduction Network (DragNet) and organised by DGLR under the auspice of CEAS. The conference addressed the recent advances in all 作者: LINE 時間: 2025-3-22 10:50 作者: 壓迫 時間: 2025-3-22 16:14
,Grundlagen der Unternehmensagilit?t,h areas as aeronautics. Subsequently the role, the structure and the content of the effort in technology acquisition by the research framework programmes of the European Union will be highlighted. A special emphasis will be on the perspectives of specific aeronautics research within the technology programme “Competitive and Sustainable Growth”.作者: 短程旅游 時間: 2025-3-22 20:03 作者: 無意 時間: 2025-3-22 22:36
Perspectives for the Future of Aeronautics Researchh areas as aeronautics. Subsequently the role, the structure and the content of the effort in technology acquisition by the research framework programmes of the European Union will be highlighted. A special emphasis will be on the perspectives of specific aeronautics research within the technology programme “Competitive and Sustainable Growth”.作者: 善變 時間: 2025-3-23 04:56
The Importance of Aerodynamics in the Development of Commercially Successful Transport Aircraftave produced clear cost and performance benefits. For this reason it is absolutely justified to invest in further improvements concerning development of tools and methods including experimental technologies and facilities, taking advantage of the enormous leverage on both total programme costs and aircraft performance.作者: 和諧 時間: 2025-3-23 06:07
Controlling in der Konsumgüterindustrieinsect contamination protection, whilst the other test on a Do 228 will explore the operating performance of various combinations of suction, ice protection and insect contamination protection systems. This paper reviews the concept, design and construction of the Leading Edge for the HYLTEC Do228 systems flight test experiment.作者: 起草 時間: 2025-3-23 13:07 作者: 聾子 時間: 2025-3-23 15:48 作者: 離開就切除 時間: 2025-3-23 20:55
https://doi.org/10.1007/978-3-322-81101-1stem has been installed, but both panels utilise the pressure difference on the wing nose for suction and blowing..The experiment started in July 1999 and is still on-going at the time of writing this . which describes the preparation, experience and results, available at the time of compilation.作者: 留戀 時間: 2025-3-24 01:21 作者: Fibroid 時間: 2025-3-24 02:58
https://doi.org/10.1007/978-3-322-89083-2aerodynamic constraints, is capable of producing aerodynamic configurations of high efficiency. Target values for L/D at cruise and at low speed were achieved and excellent agreement was obtained with the predicted performance. Major limitations were exposed in current computational and design methods for low speed.作者: 叫喊 時間: 2025-3-24 07:12
Conference proceedings 2001nduced drag reduction, separation control and supersonic flow aspects. This volume which comprises more than 40 conference papers is of particular interest to engineers, scientists and students working in the aeronautics industry, research establishments or academia.作者: Anterior 時間: 2025-3-24 13:41 作者: lobster 時間: 2025-3-24 16:56 作者: Offstage 時間: 2025-3-24 19:57 作者: engender 時間: 2025-3-25 02:16 作者: 招致 時間: 2025-3-25 05:58 作者: PANIC 時間: 2025-3-25 09:45
Flight Operational Assessment of Hybrid Laminar Flow Control (HLFC) AircraftA computer performance model of a twin engine aircraft in the class of the Boeing 757, has been used to study the change in block fuel for alternative fuel planning assumptions based on a loss in laminar flow due to cloud encounters in the cruise.作者: 懶洋洋 時間: 2025-3-25 12:14
Flight Testing of a HLF Wing with Suction, Ice-Protection and Anti-Contamination Systemsinsect contamination protection, whilst the other test on a Do 228 will explore the operating performance of various combinations of suction, ice protection and insect contamination protection systems. This paper reviews the concept, design and construction of the Leading Edge for the HYLTEC Do228 systems flight test experiment.作者: Autobiography 時間: 2025-3-25 17:14
New Aerodynamic Approach to Suction System Designfort has been expended. To demonstrate the power of the technique, the advantages and penalties associated with two different chamber layouts are discussed. Further research is required into the control of crossflow instability and the oversuction phenomenon before the method can be fully exploited.作者: SLING 時間: 2025-3-25 22:23
DNS Study of Suction through Arrays of Holes in a 3-D Boundary-Layer Flowof crossflow vortex type eigenmodes (CFV modes) subject to possible primary downstream growth, and other (suction vortex, SV) modes. However, continued discrete suction seems to suppress the CFV-type eigenmodes and favor non-or only weakly growing SV modes.作者: 咽下 時間: 2025-3-26 01:45
Saab 2000 In-Service Test of Porous Surfaces for HLFCstem has been installed, but both panels utilise the pressure difference on the wing nose for suction and blowing..The experiment started in July 1999 and is still on-going at the time of writing this . which describes the preparation, experience and results, available at the time of compilation.作者: 異常 時間: 2025-3-26 07:32 作者: 破裂 時間: 2025-3-26 09:53
European Research to Reduce Drag for Supersonic Transport Aircraftaerodynamic constraints, is capable of producing aerodynamic configurations of high efficiency. Target values for L/D at cruise and at low speed were achieved and excellent agreement was obtained with the predicted performance. Major limitations were exposed in current computational and design methods for low speed.作者: 紅潤 時間: 2025-3-26 14:23
Peter ThiedeAerodynamic drag reduction technologies conference proceedings.Written for engineers, scientists and students in aeronautics industry, research and academia作者: 擋泥板 時間: 2025-3-26 20:47 作者: 高度 時間: 2025-3-26 21:23 作者: 怎樣才咆哮 時間: 2025-3-27 03:13
Controlling in agilen Unternehmenor the commercial success of any aircraft programme. Past developments in computing methods and tools as well as in wind tunnel testing technologies have produced clear cost and performance benefits. For this reason it is absolutely justified to invest in further improvements concerning development 作者: Nomadic 時間: 2025-3-27 05:17
Controlling in der Kommunalverwaltungngredients: (1) current and future market needs as identified by industry, users and governmental authorities; (2) scientific and technical progress; (3) demands of our customers for higher performance, greater safety, lower cost and environmental friendliness..Through this process, drag reduction h作者: 指耕作 時間: 2025-3-27 09:48
Walid Mehanna,Chris Marcus Rabe. reduction, but also for smaller aircraft like business jets where the improved aerodynamic performances make it possible to build smaller, lighter and therefore less expensive aircraft. It is therefore one of the major keys for the improved competitiveness of the business jets.作者: 負擔 時間: 2025-3-27 17:32 作者: Dissonance 時間: 2025-3-27 18:55
Virginia Moretti,Maximilian Murcksures has been closely coupled with the boundary layer and stability analysis methodology to provide a numerical tool to help in the design of a suction system. The new approach also provides a direct link between the cost functions of suction system mass and power with the aerodynamic drag benefit,作者: 表狀態(tài) 時間: 2025-3-28 01:30
Walid Mehanna,Chris Marcus Rabees, if applied to wings, nacelles, empennage reduce the surface friction significantly..HYLTEC (HYbrid Laminar flow TECnology) is a follow-on activity to previous projects funded by the EC within the programme “Industrials and Materials Technologies” [1]..In order to improve the competitiveness of n作者: 榮幸 時間: 2025-3-28 03:43 作者: 螢火蟲 時間: 2025-3-28 09:57
https://doi.org/10.1007/978-3-658-38488-3 suction holes on an accelerated 3-D laminar boundary layer. For a hole array with 35 hole rows it turns out that the hole-row order typically has no influence on the amplitudes of the 3-D disturbance modes at the end of the hole array. Due to an averaging effect caused by the changing flow directio作者: outset 時間: 2025-3-28 14:27
https://doi.org/10.1007/978-3-322-81101-1ing and gaining experience on the contamination and durability aspects of porous surfaces for Hybrid Laminar Flow..The test is aimed at gathering data and experience relating to materials for porous suction surfaces and the way that these will behave under in-service conditions. Two small span panel作者: Nerve-Block 時間: 2025-3-28 16:18 作者: –FER 時間: 2025-3-28 18:49
https://doi.org/10.1007/978-3-322-81101-1 the European Community A nacelle . has been defined for the CFM56-5C engine installed on the A340. The Hybrid Laminar Flow nacelle features a translating forebody replacing both the intake and the fan cowl doors and also an upgraded thrust reverser. The major conclusion of the multidisciplinary wor作者: PRO 時間: 2025-3-29 00:16
https://doi.org/10.1007/978-3-322-89083-2sign methods, is described. The evaluation of the aerodynamic design of three wing configurations by wind-tunnel model testing is described. Results are presented for independent CFD analyses of the optimised wing configurations, and a comparative analysis of results from design, model test and CFD 作者: fender 時間: 2025-3-29 06:06 作者: 模仿 時間: 2025-3-29 08:00
Aerodynamic Drag Reduction Technologies978-3-540-45359-8Series ISSN 1612-2909 Series E-ISSN 1860-0824 作者: 擦試不掉 時間: 2025-3-29 14:20 作者: cancer 時間: 2025-3-29 16:42 作者: Insulin 時間: 2025-3-29 20:37
978-3-642-07541-4Springer-Verlag Berlin Heidelberg 2001作者: Etymology 時間: 2025-3-30 00:06 作者: 外表讀作 時間: 2025-3-30 07:29 作者: 施加 時間: 2025-3-30 10:33 作者: Deceit 時間: 2025-3-30 16:26
The Importance of Aerodynamics in the Development of Commercially Successful Transport Aircraftor the commercial success of any aircraft programme. Past developments in computing methods and tools as well as in wind tunnel testing technologies have produced clear cost and performance benefits. For this reason it is absolutely justified to invest in further improvements concerning development 作者: 痛恨 時間: 2025-3-30 19:05
Drag Reduction: a Major Task for Researchngredients: (1) current and future market needs as identified by industry, users and governmental authorities; (2) scientific and technical progress; (3) demands of our customers for higher performance, greater safety, lower cost and environmental friendliness..Through this process, drag reduction h作者: Astigmatism 時間: 2025-3-30 23:40
Lessons Learned from Dassault’s Falcon 900 HLF Demonstrator. reduction, but also for smaller aircraft like business jets where the improved aerodynamic performances make it possible to build smaller, lighter and therefore less expensive aircraft. It is therefore one of the major keys for the improved competitiveness of the business jets.作者: muffler 時間: 2025-3-31 04:42
Flight Testing of a HLF Wing with Suction, Ice-Protection and Anti-Contamination Systemsa involved, but relatively little flight experience has been gained with the hardware and systems that will be required on a laminar aircraft. The joint European program HYLTEC plays a significant role in adding to the knowledge and experience of materials and systems for HLFC by conducting two comp作者: 重力 時間: 2025-3-31 06:16
New Aerodynamic Approach to Suction System Designsures has been closely coupled with the boundary layer and stability analysis methodology to provide a numerical tool to help in the design of a suction system. The new approach also provides a direct link between the cost functions of suction system mass and power with the aerodynamic drag benefit,作者: TEN 時間: 2025-3-31 13:03
