Bury, Yannick and Jardin, Thierry Transitions to chaos in the wake of an axisymmetric bluff body. (2012) Physics Letters A, 376 (45). 3219-3222. ISSN 0375-9601
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(Document in English)
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Official URL: http://dx.doi.org/10.1016/j.physleta.2012.09.011
Abstract
This letter aims at understanding the dynamical process that leads to the onset of chaos in the flow past a blunt-based axisymmetric bluff body. On the basis of direct numerical simulations, conducted for Reynolds numbers ranging from 100 to 900, we show that the flow undergoes multiple transitions, successively giving rise to the SS, RSPa, RSPb, RSPc and RSB wake states. In particular, the RSPc state, revealed in this work via long-term computations, is characterized by intermittent vortex stretching denoting the onset of chaos before the symmetry breaking and the occurence of the RSB state.
| Item Type: | Article |
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| Additional Information: | Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Electrochimica Acta website: http://www.sciencedirect.com/science/article/pii/S0375960112009851 |
| HAL Id: | hal-00781680 |
| Audience (journal): | International peer-reviewed journal |
| Uncontrolled Keywords: | |
| Institution: | Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE) |
| Laboratory name: | |
| Statistics: | download |
| Deposited On: | 11 Oct 2012 12:20 |
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