Characterization of the Wake past a Two-dimensional Multi-body Cylinder Arrangement
| Autor: | Jose Manuel Vega De Prada, Soledad Le Clainche Martínez, Víctor Beltrán Martínez |
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| Rok vydání: | 2018 |
| Předmět: |
Physics
Multi body Time periodic Mathematical analysis Reynolds number 02 engineering and technology Wake 16. Peace & justice 01 natural sciences Aeronáutica 010305 fluids & plasmas Cylinder (engine) law.invention Characterization (materials science) Physics::Fluid Dynamics symbols.namesake 020303 mechanical engineering & transports 0203 mechanical engineering law 0103 physical sciences Dynamic mode decomposition symbols |
| Zdroj: | 2018 AIAA Aerospace Sciences Meeting | AIAA SciTech Forum2018 . AIAA Aerospace Sciences Meeting | 8-12 Jan | Kissimmee, Florida, EE.UU. Archivo Digital UPM Universidad Politécnica de Madrid |
| DOI: | 10.2514/6.2018-0825 |
| Popis: | The wake interaction of an unsymmetrically distributed multi-body arrangement of twodimensional cylinders has been characterized by the analysis of its spatio-temporal structure using higher order dynamic mode decomposition HODMD. The comparison between different Reynolds numbers and cylinder arrangements shows time periodic responses for all cases at low Reynolds numbers, whereas the response is quasi-periodic at larger Reynolds numbers for two and three body cases. Furthermore, in the multi-body cases at higher Reynolds numbers, the fundamental frequencies for the involved singular bodies are identified, as well as new fundamental frequencies that seem to be associated with the system response as a whole entity. |
| Databáze: | OpenAIRE |
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