Finite-size effects on open chaotic advection.
Finite-size effects on open chaotic advection.
复制标题
开放混沌平流的有限尺寸效应。
DOI：
10.1103/physreve.73.026302
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
C. Grebogi
中科院分区：
文献类型：
--
作者：
R. D. Vilela;A. D. de Moura;C. Grebogi
We study the effects of finite-sizeness on small, neutrally buoyant, spherical particles advected by open chaotic flows. We show that, when observed in the configuration or physical space, the advected finite-size particles disperse about the unstable manifold of the chaotic saddle that governs the passive advection. Using a discrete-time system for the dynamics, we obtain an expression predicting the dispersion of the finite-size particles in terms of their Stokes parameter at the onset of the finite-size induced dispersion. We test our theory in a system derived from a flow and find remarkable agreement between our expression and the numerically measured dispersion.
