Motion of a non-axisymmetric particle in viscous shear flow
Motion of a non-axisymmetric particle in viscous shear flow
复制标题
非轴对称粒子在粘性剪切流中的运动
DOI:
10.1017/jfm.2019.367
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发表时间:
2019
影响因子:
3.7
通讯作者:
Thorp I
中科院分区:
文献类型:
--
作者:
Thorp I
We examine the motion in a shear flow at zero Reynolds number of particles with two planes of symmetry. We show that in most cases the rotational motion is qualitatively similar to that of a non-axisymmetric ellipsoid, and characterised by a combination of chaotic and quasiperiodic orbits. We use Kolmogorov–Arnold–Moser (KAM) theory and related ideas in dynamical systems to elucidate the underlying mathematical structure of the motion and thence to explain why such a large class of particles all rotate in essentially the same manner. Numerical simulations are presented for curved spheroids of varying centreline curvature, which are found to drift persistently across the streamlines of the flow for certain initial orientations. We explain the origin of this migration as the result of a lack of symmetries of the particle’s orientation orbit.
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影响因子:
3.7
作者:
Borker, Neeraj S.;Stroock, Abraham D.;Koch, Donald L.
通讯作者:
Koch, Donald L.
影响因子:
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作者:
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DOI:
--
发表时间:
1985
期刊:
影响因子:
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通讯作者:
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DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
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通讯作者:
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