1–50 von 2,204 Ergebnissen
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    Zonal Detached Eddy Simulations of a Dual-Stream Jet: Turbulence Rate Sensitivity

    Verrière, Jonas / Gand, Fabien / Deck, Sébastien | AIAA | 2017
    nozzle ducts’ exhaust. The nozzle design and operating conditions are typically those of an aircraft engine at cruise, although the external flow ...
    Verlag: The American Institute of Aeronautics and Astronautics

      Zonal Detached Eddy Simulations of a Dual-Stream Jet: Turbulence Rate Sensitivity

      Verrière, Jonas | Online Contents | 2017
      ducts’ exhaust. The nozzle design and operating conditions are typically those of an aircraft engine at cruise, although the external flow is ...
      Verlag: AIAA , Reston, Va. [u.a.]

      Zonal Detached Eddy Simulations of a Dual-Stream Jet: Turbulence Rate Sensitivity

      Verrière, Jonas | Online Contents | 2017
      ducts’ exhaust. The nozzle design and operating conditions are typically those of an aircraft engine at cruise, although the external flow is ...
      Verlag: AIAA , Reston, Va. [u.a.]

    Zonal Detached-Eddy Simulations of a Dual-Stream Jet

    Verrière, Jonas / Gand, Fabien / Deck, Sébastien | AIAA | 2016
    operating conditions are typically those of an aircraft engine at cruise, although the external flow speed is not simulated. The paper focuses on ...
    Verlag: The American Institute of Aeronautics and Astronautics

      Zonal Detached-Eddy Simulations of a Dual-Stream Jet

      Verrière, Jonas | Online Contents | 2016
      operating conditions are typically those of an aircraft engine at cruise, although the external flow speed is not simulated. The paper focuses on ...
      Verlag: AIAA , Reston, Va. [u.a.]

    Zonal Detached-Eddy Simulation of Separated Flow Around a Finite-Span Wing

    Richez, F | Online Contents | 2015
    The unsteady turbulent flow around a three-dimensional finite-span wing at stall is investigated by means of a zonal detached-eddy ...
    Verlag: AIAA , Reston, Va. [u.a.]
    Schlagwörter: Aircraft

    Zonal Detached Eddy Simulation of a Civil Aircraft with a Deflected Spoiler

    Gand, F. | AIAA | 2012
    of major importance in the aerodynamic design process of an aircraft related to tail buffet. ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Civil Aircraft

    Zonal Detached Eddy Simulation of a Civil Aircraft with a Deflected Spoiler

    Online Contents | 2013
    Verlag: AIAA , Reston, Va. [u.a.]

    YOLOv4 Object Detection Model for Nondestructive Radiographic Testing in Aviation Maintenance Tasks

    Chen, Zhi-Hao / Juang, Jyh-Ching | AIAA | 2021
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Aircraft Fuselages

    X-HALE: A Very Flexible Unmanned Aerial Vehicle for Nonlinear Aeroelastic Tests

    Cesnik, Carlos E. S. / Senatore, Patrick J. / Su, Weihua et al. | AIAA | 2012
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Remotely Piloted Aircraft , Aircraft Configurations , Aircraft Flight Dynamics

    X-43A Flight-Test-Determined Aerodynamic Force and Moment Characteristics at Mach 7.0

    Davis, Mark C. / White, J. Terry | NTRS | 2008
    airframe-integrated scramjet-powered aircraft in hypersonic flight. These data were gathered via a repeated series of pitch, yaw, and roll doublets ...

    Workshop report for the AIAA 6th Aeroacoustics Conference

    TAM, C. K. W. | AIAA | 1981
    Verlag: The American Institute of Aeronautics and Astronautics

    Workshop report for the AIAA 5th Aeroacoustics Conference

    GOLDSTEIN, M. E. | AIAA | 1980
    Verlag: The American Institute of Aeronautics and Astronautics

    Workshop report for the AIAA 5th Aeroacoustics Conference

    Goldstein, M. E. | NTRS | 1980
    Summaries of current understandings, technological tools and remaining controversies in the field of aeroacoustics are presented, with ...

    Workshop Report for the 4th AIAA Aeroacoustics Conference

    Craig D. Simcox | AIAA | 1979
    Verlag: The American Institute of Aeronautics and Astronautics

    Within Homogeneous Turbulence: Crow Instability Large Eddy Simulation of Aircraft Wake Vortices

    Jongil Han / Yuh-Lang Lin / David G. Schowalter et al. | AIAA | 2000
    Verlag: The American Institute of Aeronautics and Astronautics

    Wing-tip vortices, turbulence, and the distribution of emissions

    Gerz, T. / Holzäpfel, F. | Tema Archiv | 1999
    the aircraft are distinguished. The former is weak and anisotropic with eddy sizes in the order of the wing span, whereas the latter is ...

    Wing Tip Vortices from an Exergy-Based Perspective

    Memon, Muhammad Omar | Online Contents | 2015
    , the exergy method holds promise as a metric for the improvement of aircraft performance through the reduction of lift-induced drag. Presented ...
    Schlagwörter: Second law of thermodynamics

    Wind-Tunnel Testing of Otto Lilienthal’s Production Aircraft from 1893

    Wienke, Felix / Raffel, Markus / Dillmann, Andreas | AIAA | 2020

    A full-scale wind-tunnel test of a replica of Otto Lilienthal’s Normalsegelapparat from 1893 was conducted in a closed

     ...
    Verlag: The American Institute of Aeronautics and Astronautics

    Wind Tunnel System for Active Flutter Suppression Research: Overview and Insights

    Ricci, Sergio / Toffol, Francesco / De Gaspari, Alessandro et al. | AIAA | 2022

    This paper describes the development of a new state-of-the-art large wind tunnel model for active flutter suppression studies as well as

     ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Aircraft Configurations

    Wind-Tunnel Sonic-Boom Testing Techniques

    Carlson, H. W. / Morris, O. A. | NTRS | 1967
    Wind tunnel tests of sonic boom phenomena, noting weak pressure field measurement, construction of extremely small models, boundary layer ...

    Wind-Tunnel and CFD Investigations Focused on Transition and Performance Predictions of Laminar Wings

    Hue, David / Vermeersch, Olivier / Duchemin, Jérémy et al. | AIAA | 2017
    Predictions of Laminar Airfoils,” AIAA Journal, Vol. 53, No. 9, Sept. 2015, pp. 2694–2712) that focused on transition and drag ...
    Verlag: The American Institute of Aeronautics and Astronautics

    Wide-scale integration of unmanned aircraft systems into the National Airspace System through a fault tree analysis approach

    Beizer, Jessica A. / van Graas, Frank / de Haag, Maarten Uijt | IEEE | 2017
    The introduction of Title 14 of the code of Federal Regulations (14 CFR) Part 107 by the Federal Aviation Administration (FAA) has begun ...

    When Are Allowables Conservative?

    del Rosario, Zachary / Fenrich, Richard W. / Iaccarino, Gianluca | AIAA | 2021

    Aircraft designers are legally required to treat manufacturing variability so as to minimize the probability of structural failure

     ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Code of Federal Regulations , Aircraft Design , Aircraft Structures

    What Was Learned in Predicting Slender Airframe Aerodynamics with the F-16XL Aircraft

    Rizzi, Arthur / Luckring, James M. | NTRS | 2016
    set obtained with the F-16XL aircraft for comparison and validation. These conditions, a low-speed high-angle-of-attack case and a transonic ...

    Weight Indexing for Wing-Shape Multi-Objective Optimization

    Elham, Ali / van Tooren, Michel J. L. | AIAA | 2014
    aircraft maximum takeoff weight and the aircraft direct operating cost are used as the design figures of merit to identify the best wings among the ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Aircraft Direct Operating Cost

      Weight Indexing for Wing-Shape Multi-Objective Optimization

      Elham, Ali / Tooren, Michel J.L. van | Tema Archiv | 2014
      maximum takeoff weight and the aircraft direct operating cost are used as the design figures of merit to identify the best wings among the wings ...

    Weighted Gradient-Enhanced Kriging for High-Dimensional Surrogate Modeling and Design Optimization

    Han, Zhong-Hua / Zhang, Yu / Song, Chen-Xing et al. | AIAA | 2017

    A novel formulation of gradient-enhanced surrogate model, called weighted gradient-enhanced kriging, is proposed and used in combination

     ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Aircraft Configurations

    Waverider Design Using Osculating Method

    Liu, Chuanzhen / Bai, Peng | AIAA | 2024

    Because of the requirements of payload capability, flight range, and maneuverability, hypersonic aircraft demand high aerodynamic

     ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Hypersonic Aircraft , Aircraft Wing Design , Aircraft Components and Structure

    Wavelet Analysis of a Blade Tip-Leakage Flow

    Boudet, Jérôme / Jacob, Marc C. / Caro, Joëlle et al. | AIAA | 2018
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Angle of Attack , Aircraft Wings

    Waveform Transition of Sonic Boom Generated from a Sphere at Hypersonic Speed

    Yamashita, Rei / Suzuki, Kojiro | AIAA | 2015
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Supersonic Aircraft

    Water-augmented turbofan engine

    Davison, W.R. / Sadowski, T.J. | Engineering Index Backfile | 1968
    discharge duct of aircraft-type turbofan engine; theoretical design and off-design performance show that dry thrust theoretically can be augmented ...

    Wall Pressure Fluctuations Beneath Hypersonic Boundary Layer over Plate

    Zhao, XiaoJian / Zhao, Lei | AIAA | 2020

    Wall pressure fluctuations beneath a boundary layer are the main cause of structural vibration for hypersonic aircraft. To accurately

     ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Hypersonic Aircraft

    Wall-Mounted Finite Airfoil-Noise Production and Prediction

    Moreau, Danielle J. / Doolan, Con J. / Alexander, W. Nathan et al. | AIAA | 2016

    This paper presents the results of an experimental investigation of the flow-induced sound produced by a smooth, wall-mounted finite

     ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Aircraft Wings

    Wall-Modeled Large-Eddy Simulation with Second-Order-Accurate Upwind Scheme

    Yasuda, Hidemasa / Kawai, Soshi | AIAA | 2022

    In aircraft aerodynamic design, it is essential for certification by analysis to estimate aircraft aerodynamic characteristics with high

     ...
    Verlag: The American Institute of Aeronautics and Astronautics

    Wall-Modeled Large-Eddy Simulation of Transonic Buffet over NASA-CRM Using FFVHC-ACE

    Tamaki, Yoshiharu / Kawai, Soshi | AIAA | 2024

    This study investigates the capability of wall-modeled large-eddy simulation (WMLES) in predicting the transonic buffet phenomenon over

     ...
    Verlag: The American Institute of Aeronautics and Astronautics

    Wall curvature and transition effects in turbulent boundary layers

    CEBECI, T. | AIAA | 1971
    Verlag: The American Institute of Aeronautics and Astronautics

    Wake Vortex Encounter Risk Assessment for Crosswind Departures

    Freier Zugriff
    Kauertz, Sebastian / Holzäpfel, Frank / Kladetzke, Jan | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2012
    In the European research project, CREDOS (Crosswind-Reduced Separations for Departure Operations), the feasibility of a concept for ...
    Verlag: American Institute of Aeronautics and Astronautics (AIAA)

    Wake Sensing and Estimation for Control of Autonomous Aircraft in Formation Flight

    Levi DeVries | Online Contents | 2016
    using numerical examples of a two-aircraft formation. Presented as Paper 2013-4705 at the AIAA Guidance, Navigation, and Control (GNC ...

    Wake Impact Alleviation Control Based on Wake Identification

    Ehlers, Jana | Online Contents | 2015
    encounter and hence diminish the pilot workload while reducing the potential risk to the passengers, crew, and aircraft. The realization of a wake ...
    Schlagwörter: Aircraft accidents & safety

    Vortical singularities in conical flow.

    MELNIK, R. E. | AIAA | 1967
    Verlag: The American Institute of Aeronautics and Astronautics

    Vortex Shedding from Airfoils in Reverse Flow

    Lind, Andrew H | Online Contents | 2015
    The vortex shedding characteristics of three airfoils held at static angles of attack through 360 deg are presented with a focus on reverse ...
    Verlag: AIAA , Reston, Va. [u.a.]
    Schlagwörter: Aircraft

    Vortex interactions and decay in aircraft wakes

    BILANIN, A. J. / TESKE, M. E. / WILLIAMSON, G. G. | AIAA | 1977
    Verlag: The American Institute of Aeronautics and Astronautics

    Vortex interactions and decay in aircraft wakes

    Bilanin, A. J. / Teske, M. E. / Williamson, G. G. | NTRS | 1977
    The dynamic interactions of aircraft wake vortices are investigated using both inviscid and viscous models. The phenomenon of vortex ...

    Vortex Identification and Quantification on Blunt Trailing-Edge Rotor Blades in Reverse Flow

    Wild, Oliver D. / Jones, Anya R. | AIAA | 2023

    An inherent aerodynamic limitation of high-advance-ratio high-speed helicopters is reverse flow on the retreating blades, which can be a

     ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Aircraft Wing Design

    Vortex Buffeting of Aircraft Tail: Interpretation via Proper Orthogonal Decomposition

    Younjong Kim / Donald Rockwell / Antonios Liakopoulos | AIAA | 2005
    Verlag: The American Institute of Aeronautics and Astronautics

    Vortex breakdown - Tail interaction

    Kim, Y. / Ozgoren, M. / Rockwell, D. | Tema Archiv | 2003
    the works of Washburn et al. (AIAA Paper 93-050, Jan 1993) and Canbazoglu et al. (Journal of Aircraft, Vol. 29, No. 6, 1992, pp. 986-992 ...

    Volumetric Velocimetry of Complex Geometry Effects on Transonic Flow over Cavities

    DeMauro, Edward P. / Beresh, Steven J. / Casper, Katya M. et al. | AIAA | 2019
    representative of real aircraft bays and compare them to a simple rectangular cavity. The rectangular configuration exhibits signs of a transitional ...
    Verlag: The American Institute of Aeronautics and Astronautics

    Vibroacoustic Modes and Active Control of Both Vibration and Sound

    Kaizuka, Tsutomu / Tanaka, Nobuo | AIAA | 2008
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Aircraft Fuselages

    Vibration and Snapthrough of Fluid-Conveying Graphene-Reinforced Composite Pipes Under Low-Velocity Impact

    Ren, Yiru / Li, Lizhi / Jin, Qiduo et al. | AIAA | 2021
    external loads in the aircraft. The impact dynamic behaviors of the flow-inducing pre- and postbuckled pipes are studied with the surfaces made of ...
    Verlag: The American Institute of Aeronautics and Astronautics

    Vibration Analysis of Curvilinearly Stiffened Composite Panel Subjected to In-Plane Loads

    Zhao, Wei / Kapania, Rakesh K. | AIAA | 2016

    This paper presents an efficient finite element approach to study the prestressed vibration mode results of a curvilinearly stiffened

     ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Aircraft Configurations , Aircraft Wings

    Vertically Curved Runways for Reducing Airport Environmental Impact and Increasing Aircraft Productivity

    Elham, Ali | Online Contents | 2015
    , while also increasing the productivity of passenger aircraft. The shape of a curved runway was optimize to minimize the produced CO2 during an ...

    Vertical Drop Test of Composite Fuselage Section of a Regional Aircraft

    Di Palma, L. / Di Caprio, F. / Chiariello, A. et al. | AIAA | 2019

    In this paper, a vertical drop test of a full composite fuselage section of a regional aircraft has been presented. This test was

     ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Commercial Aircraft , Aircraft Structures

    Verification of the γ - R e θ t Transition Model in OVERFLOW and FUN3D

    Shankar Venkatachari, Balaji / Mysore, Preethi V. / Hildebrand, Nathaniel et al. | AIAA | 2023

    The findings of the recent AIAA and NATO workshops on transition modeling have underscored the importance of verifying the transition

     ...
    Verlag: The American Institute of Aeronautics and Astronautics