Aeroelastic response of a 2-D airfoil in a compressible flow field and exposed to blast loading |
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| Institution: | 1. Engineering Science and Mechanics Department, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0219, USA;2. Dipartimento di Ingegneria Aeronautica e Spaziale, Politecnico di Torino, Torino, 10129 Italy;1. Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, Russia;2. Hinode Science Center, National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan;3. Institute of Computational Mathematics and Mathematical Geophysics, Novosibirsk 630090, Russia;1. Kremlevskaja 18, Kazan 420008, Russian Federation;2. Bukovo, Karachaevo-Cherkesskaja rep., 369167, Russian Federation;1. College of Engineering, Swansea University, Swansea SA1 8EN, United Kingdom;2. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Yudao Street 29, Nanjing, 210016, China;3. School of Computing and Engineering, University of Huddersfield, Huddersfield HD1 3DH, United Kingdom;1. Kislovodsk Mountain Astronomical Station of Pulkovo Observatory, Gagarina Str. 100, Kislovodsk 357700, Russia;2. National Solar Observatory, Sunspot, NM 88349, USA;3. ReSoLVE Centre of Excellence, Department of Physics, FIN-90014, University of Oulu, Finland |
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| Abstract: | This paper deals with the generation and use of proper aerodynamic indicial functions toward the aeroelastic formulation of two-dimensional lifting surfaces in the subsonic compressible, linearized transonic, supersonic and hypersonic flight speed regimes. The indicial function approach enables one to treat in an unified way (i.e. in the time and frequency domains) the subcritical aeroelastic response and the flutter instability of lifting surfaces. Validations of the aerodynamic model are documented and excellent agreements are reported. In addition, closed form solutions and aerodynamic derivatives for different flight speed regimes are obtained; comparisons, and results displaying the aeroelastic response to blast loads are presented, and pertinent conclusions are outlined. |
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