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
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
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.
WU Zuo-Bing;LING Guo-Can;XING Qi-Jiang. Effects of Particle Size on Dilute Particle Dispersion in a Kármán Vortex Street Flow[J]. 中国物理快报, 2002, 19(1): 83-86.
WU Zuo-Bing, LING Guo-Can, XING Qi-Jiang. Effects of Particle Size on Dilute Particle Dispersion in a Kármán Vortex Street Flow. Chin. Phys. Lett., 2002, 19(1): 83-86.
2002, Vol. 19 
