Letteratura scientifica selezionata sul tema "Global aerodynamic coefficients"
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Articoli di riviste sul tema "Global aerodynamic coefficients":
Albisser, Marie, e Simona Dobre. "Sensitivity Analysis for Global Parameter Identification. Application to Aerodynamic Coefficients". IFAC-PapersOnLine 51, n. 15 (2018): 963–68. http://dx.doi.org/10.1016/j.ifacol.2018.09.069.
Laupré, Gabriel, e Jan Skaloud. "On the Self-Calibration of Aerodynamic Coefficients in Vehicle Dynamic Model-Based Navigation". Drones 4, n. 3 (12 luglio 2020): 32. http://dx.doi.org/10.3390/drones4030032.
Svorcan, Jelena, Ognjen Pekovic e Toni Ivanov. "Estimation of wind turbine blade aerodynamic performances computed using different numerical approaches". Theoretical and Applied Mechanics 45, n. 1 (2018): 53–65. http://dx.doi.org/10.2298/tam171130004s.
Michálek, Petr, e Stanislav Hračov. "Experimental investigation of aerodynamic coefficients of the Holy Trinity Column in wind tunnel". MATEC Web of Conferences 313 (2020): 00049. http://dx.doi.org/10.1051/matecconf/202031300049.
Buzica, Andrei, Lisa Debschütz, Florian Knoth e Christian Breitsamter. "Leading-Edge Roughness Affecting Diamond-Wing Aerodynamic Characteristics". Aerospace 5, n. 3 (19 settembre 2018): 98. http://dx.doi.org/10.3390/aerospace5030098.
Zhu, Hongyu, Gang Wang, Yi Liu e Boping Ma. "Uncertainty Analysis of Supersonic Biplane's Aerodynamic Characteristics". Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 37, n. 5 (ottobre 2019): 909–17. http://dx.doi.org/10.1051/jnwpu/20193750909.
Wiński, Krzysztof, e Adam Piechna. "Comprehensive CFD Aerodynamic Simulation of a Sport Motorcycle". Energies 15, n. 16 (15 agosto 2022): 5920. http://dx.doi.org/10.3390/en15165920.
Zalewski, Wiesław. "The Impact of Propeller on Aerodynamics of Aircraft / Wpływ Śmigła Na Aerodynamikę Samolotu". Journal of KONBiN 33, n. 1 (1 settembre 2015): 209–22. http://dx.doi.org/10.1515/jok-2015-0018.
Le-Duc, Thang, e Quoc-Hung Nguyen. "Aerodynamic Optimal Design for Horizontal Axis Wind Turbine Airfoil Using Integrated Optimization Method". International Journal of Computational Methods 16, n. 08 (29 agosto 2019): 1841004. http://dx.doi.org/10.1142/s0219876218410049.
Fontanella, Alessandro, Ilmas Bayati, Robert Mikkelsen, Marco Belloli e Alberto Zasso. "UNAFLOW: a holistic wind tunnel experiment about the aerodynamic response of floating wind turbines under imposed surge motion". Wind Energy Science 6, n. 5 (9 settembre 2021): 1169–90. http://dx.doi.org/10.5194/wes-6-1169-2021.
Tesi sul tema "Global aerodynamic coefficients":
Vauchel, Nicolas. "Estimation des indices de Sobol à l'aide d'un métamodèle multi-éléments : application à la dynamique du vol". Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILN008.
The thesis is addressing a concrete issue on aircrafts safety. The post-stall flight domain is a complex flight domain where flows around an airfoil may be highly unstable and massively stalled. In this domain, which can be reached on purpose or accidentally, usual controls are less efficient or completely inefficient, which can endanger the pilot and its passengers. The thesis is about the determination of the flight predictions in the post-stall flight domain, their dependences to the selected model structure and about the uncertainties of the experimental data the model relies on. The dynamic of the motion of the aircraft is governed by a dynamic system of ordinary non-linear differential equations. In these equations, the effects from the fluid on the aircraft are traduced by the global aerodynamic coefficients, the dimensionless forces and moments applied by the fluid on the aircraft. These coefficients depend on a high number of variables in a non-linear fashion. Among these variables are the geometry of the aircraft, its velocity and its rotation rates compared to earth, and characteristics of the surrounding flow. A representation model having a selected structure is determined for every aerodynamic coefficient, in order to represent these complex dependences. This model rely on experimental data obtained on a scale model, free flight data on a real aircraft being too expensive and too risky to get in the post-stall domain. Another way of obtaining data would be to use computational simulations. Nevertheless, the complex and unsteady flows around the 3D geometry of the aircraft makes the simulation too expensive with the current ressources, even if some recent studies begin to explore this direction of research. The selected models in the thesis are built on experimental data only. In the dynamic system, the global aerodynamic coefficients are evaluated by interpolation in these databases according to the selected model structure. The fact of selecting a simplified structure of the model makes it deficient. Moreover, as these models rely on experimental data, they are uncertain. The gaps and the uncertainties of the model have some impacts on the flight predictions. The initial objective of the thesis is therefore to study these impacts.During the thesis, new scientific objectives appeared, objectives going beyond the scope of Flight Dynamics. First, a new multi-element surrogate model for Uncertainty Quantification based on modern Machine learning methods is developed. Multi-element surrogate models were developed to address the loss of accuracy of Polynomial Chaos model in presence of discontinuities. Then, a formula linking the sensitivity Sobol indices to the coefficient of a multi-element surrogate model is derived. These results are used in the case of Flight Dynamics in order to address the issue raised in the initial objective of the thesis. The numerous bifurcations of the dynamic system can be traduced by discontinuities and/or irregularities in the evolution of the state variables compared to the uncertain parameters. The methods of Sensitivity Analysis and of Uncertainty Quantification developed in the thesis are therefore good candidates to analyse the system
Capitoli di libri sul tema "Global aerodynamic coefficients":
Eltaweel, Mahmoud, Christos Kalyvas, Yong Chen e Mohammad Reza Herfatmanesh. "Development of a CFD Model for the Estimation of Windage Losses Inside the Narrow Air Gap of an Enclosed High-Speed Flywheel". In Springer Proceedings in Energy, 157–67. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-30960-1_16.
Khan, Md Akhtar, e K. Vigneshwar. "Aerodynamic Analysis of Supersonic Spikes for Drag Reduction". In Global Perspectives on Robotics and Autonomous Systems, 130–67. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-7791-5.ch006.
Atti di convegni sul tema "Global aerodynamic coefficients":
Bricaud, C., T. Geis, K. Dullenkopf e H. J. Bauer. "Measurement and Analysis of Aerodynamic and Thermodynamic Losses in Pre-Swirl System Arrangements". In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27191.
Bayati, Ilmas, Marco Belloli, Luca Bernini e Alberto Zasso. "A Formulation for the Unsteady Aerodynamics of Floating Wind Turbines, With Focus on the Global System Dynamics". In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-61925.
Zhang, Chenkai, Jun Hu, Zhiqiang Wang e Xiang Gao. "Design Work of a Compressor Stage Through High-to-Low Speed Compressor Transformation". In ASME 2013 Gas Turbine India Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gtindia2013-3506.
Gaszner, Manuel, Alexander O. Pugachev, Christos Georgakis e Paul Cooper. "Leakage and Rotordynamic Coefficients of Brush Seals With Zero Cold Clearance Used in an Arrangement With Labyrinth Fins". In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94342.
Hennings, H., e J. Belz. "Experimental Investigation of the Aerodynamic Stability of an Annular Compressor Cascade Performing Tuned Pitching Oscillations in Transonic Flow". In ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/99-gt-407.
Zhang, Ao, Yan Liu, Jinguang Yang, Zhi Li, Chuang Zhang e Yiwen Li. "Machine Learning Based Design Optimization of Centrifugal Impellers." In GPPS Xi'an21. GPPS, 2022. http://dx.doi.org/10.33737/gpps21-tc-235.
Yang, B., Q. Xu, L. He, L. H. Zhao, Ch G. Gu e P. Ren. "A Novel Global Optimization Algorithm and its Application to Airfoil Optimization". In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25013.
Patel, Parth Y., Thannathorn Jannoi, Wenhui Zou, Vladimir Vantsevich e Roy Koomullil. "Aerodynamic Analysis of the Utility Truck With the Morphing Boom Equipment". In ASME 2022 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/fedsm2022-88368.
Angelini, Gino, Tommaso Bonanni, Alessandro Corsini, Giovanni Delibra, Lorenzo Tieghi e David Volponi. "A Meta-Model for Aerodynamic Properties of a Reversible Profile in Cascade With Variable Stagger and Solidity". In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-76363.
Ciorciari, Roberto, Ilker Kirik e Reinhard Niehuis. "Effects of Unsteady Wakes on the Secondary Flows in the Linear T106 Turbine Cascade". In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94768.