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Effects of Particle Size on Dilute Particle Dispersion in a Kármán Vortex Street Flow |
| WU Zuo-Bing1;LING Guo-Can1;XING Qi-Jiang2 |
| 1State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080
2Department of Physics, Peking University, Beijing 100871
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| Cite this article: |
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WU Zuo-Bing, LING Guo-Can, XING Qi-Jiang 2002 Chin. Phys. Lett. 19 83-86 |
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Abstract It is shown that in a Kármán vortex street flow, particle size influences the dilute particle dispersion. Together with an increase of the particle size, there is an emergence of a period-doubling bifurcation to a chaotic orbit, as well as a decrease of the corresponding basins of attraction. A crisis leads the attractor to escape from the central region of flow. In the motion of dilute particles, a drag term and gravity term dominate and result in a bifurcation phenomenon.
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| Keywords:
47.52.+j
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Published: 01 January 2002
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| PACS: |
47.52.+j
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(Chaos in fluid dynamics)
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