1–13 von 13 Ergebnissen
|

    Aircraft Wake-Vortex Evolution in Ground Proximity: Analysis and Parameterization

    Freier Zugriff
    Holzäpfel, Frank / Steen, Meiko | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2007
    and implemented into the probabilistic two-phase aircraft wake-vortex model. Deterministic and probabilistic prediction skill of the enhanced ...
    Verlag: American Institute of Aeronautics and Astronautics (AIAA)

    Skill of an aircraft wake-vortex model using weather prediction and observation

    Freier Zugriff
    Frech, Michael / Holzäpfel, Frank | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2008
    The performance of the two-phase probabilistic wake-vortex transport and decay model using numerical weather prediction and weather ...
    Verlag: American Institute of Aeronautics and Astronautics (AIAA)

    Note on the Non-CO2 Mitigation Potential of Hybrid-Electric Aircraft Using "Eco-Switch"

    Freier Zugriff
    Niklaß, Malte / Lührs, Benjamin / Swaid, Majed | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2022
    largely driven by the level of climate sensitivities along the trajectory, rather than by emission levels (aircraft design). If no ISSR is crossed ...
    Verlag: American Institute of Aeronautics and Astronautics (AIAA)
    Schlagwörter: Hybrid-Electric Aircraft , Aircraft Design

    Probabilistic Two-Phase Aircraft Wake-Vortex Model: Further Development and Assessment

    Freier Zugriff
    Holzäpfel, Frank | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2006
    Further developments, applications, and assessments of the probabilistic two-phase aircraft wake-vortex model P2P are described. The wake ...
    Verlag: American Institute of Aeronautics and Astronautics (AIAA)

    Use of Navy External Combustion Engine Technology for Ultra High Altitude Aircraft Propulsion Systems

    Duva, A. W. / American Society of Naval Engineers | British Library Conference Proceedings | 1995

    Numerical Optimization of Plate-Line Design for Enhanced Wake-Vortex Decay

    Freier Zugriff
    Stephan, Anton / Schrall, Jürgen / Holzäpfel, Frank | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2017
    rolled-up wake vortices are initialized using a Lamb–Oseen vortex model resembling the characteristics of the two aircraft. With the stochastic ...
    Verlag: American Institute of Aeronautics and Astronautics (AIAA)

    Computational Investigation of Varying Plate-Line Geometry and Placement on Wake Vortex Dissipation

    Freier Zugriff
    Wang, C. H. John / Zhao, Dan / Schlüter, Jörg et al. | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2018
    One of the bottlenecks for the recent increase in air traffic density is near the airport, where wake vortices, bounded by the terrain ...
    Verlag: American Institute of Aeronautics and Astronautics (AIAA)

    Probabilistic Multimodel Ensemble Wake-Vortex Prediction employing Bayesian Model Averaging

    Freier Zugriff
    Körner, Stephan / Holzäpfel, Frank / Sölch, Ingo | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2019
    This paper investigates the capability of the multimodel ensemble approach to improve the deterministic forecast of wake-vortex behavior ...
    Verlag: American Institute of Aeronautics and Astronautics (AIAA)

    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)

    The Technology of an Era

    A review of aviation technical development as chronicled in the first 500 issues of this Journal from 1929 to 1970
    Barfield, Norman | Emerald Group Publishing | 1970

    AIRCRAFT ENGINEERING was born in March 1929 of the belief that the emerging technology from which it took its title would become a

     ...

    Implementing precision approaches supported by satellite-based augmentation systems in the Austrian Alps

    Freier Zugriff
    Gonzaga Lopez, Carlos / Dautermann, Thomas / Buchmann, Florian Michael et al. | Deutsches Zentrum für Luft- und Raumfahrt (DLR) | 2020
    due to the lack of flexibility to define glide paths free of obstacles. But, three-dimensional approaches are always preferred due to their ...
    Verlag: American Institute of Aeronautics and Astronautics (AIAA)

    Food for Thought

    Emerald Group Publishing | 1951

    AMONG a list of ‘preprints’, available to those interested, in a recent issue of the S.A.E. JOURNAL we noticed the

     ...

    Technical Education

    Emerald Group Publishing | 1956

    MANY months of discussion about ways of making good the scarcity of technologists in all the engineering industries, and in the aircraft

     ...