Chin. Phys. Lett.  2002, Vol. 19 Issue (1): 83-86    DOI:
Original Articles |
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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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.
Keywords: 47.52.+j     
Published: 01 January 2002
PACS:  47.52.+j (Chaos in fluid dynamics)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2002/V19/I1/083
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