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| Reference : Discrete Vortex Simulations of the torsional flutter oscillations of a 4:1 rectangular c... |
| Scientific congresses and symposiums : Paper published in a book | |||
| Engineering, computing & technology : Civil engineering Engineering, computing & technology : Aerospace & aeronautics engineering | |||
| http://hdl.handle.net/2268/118540 | |||
| Discrete Vortex Simulations of the torsional flutter oscillations of a 4:1 rectangular cylinder | |
| English | |
Andrianne, Thomas  [Université de Liège - ULg > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique >] | |
| Dimitriadis, Grigorios [Université de Liège - ULg > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale >] | |
| 24-Apr-2012 | |
| Proceedings of the 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference | |
| AIAA | |
| AIAA 2012-1988 | |
| No | |
| International | |
| 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference | |
| from 23-04-2012 to 26-04-2012 | |
| American Institute of Aeronautics and Astronautics | |
| Honolulu, Hawaii | |
| United States of America | |
| [en] Discrete Vortex Method ; Aeroelasticity ; Torsional flutter | |
| [en] This work presents aeroelastic simulations of a 2D bluff-body around its pitching degree
of freedom. The numerical tool consists in an aerodynamic solver based on the Discrete Vortex Method (DVM), coupled with a linear structural model. The shape of the bluff-body is a sharp edged rectangular cylinder with a side ratio equal to 4. The numerical results are compared to the experimental measurements recently obtained by the authors.8 The validation is carried out in three steps: first the frequency content of the flow-field in the wake of the static body is investigated. Then the simulated unsteady flow-field around the imposed pitching motion of the body is compared to experimental flow visualizations. This comparison is performed using Proper Orthogonal Decomposition (POD). Finally, the simulation of the global aeroelastic behaviour, based on the coupling of the DVM code to the structural model of the pitching degree of freedom is carried out and the results are compared to measured aeroelastic responses.. Very good agreements are found between numerical and experimental results, demonstrating the capabilities of the numerical tool to simulate complex unsteady aerodynamics around an oscillating bluff-body. | |
| Researchers ; Professionals | |
| http://hdl.handle.net/2268/118540 |
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