Weakly nonlinear analysis of pattern formation in active suspensions
Weakly nonlinear analysis of pattern formation in active suspensions
复制标题
主动悬架模式形成的弱非线性分析
DOI:
10.1017/jfm.2022.392
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发表时间:
2022
影响因子:
3.7
通讯作者:
Shelley, Michael J.
中科院分区:
文献类型:
--
作者:
Ohm, Laurel;Shelley, Michael J.
We consider the Saintillan–Shelley kinetic model of active rod-like particles in Stokes flow (Saintillan & Shelley, Phys. Rev. Lett., vol. 100, issue 17, 2008a, 178103; Saintillan & Shelley, Phys. Fluids, vol. 20, issue 12, 2008b, 123304), for which the uniform isotropic suspension of pusher particles is known to be unstable in certain settings. Through weakly nonlinear analysis accompanied by numerical simulations, we determine exactly how the isotropic steady state loses stability in different parameter regimes. We study each of the various types of bifurcations admitted by the system, including both subcritical and supercritical Hopf and pitchfork bifurcations. Elucidating this system's behaviour near these bifurcations provides a theoretical means of comparing this model with other physical systems that transition to turbulence, and makes predictions about the nature of bifurcations in active suspensions that can be explored experimentally.
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DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Shingo Murata;Yuichi Yamashita;Hiroaki Arie;Tetsuya Ogata;Shigeki Sugano;Jun Tani;石川 拓司
通讯作者:
石川 拓司
影响因子:
44.1
作者:
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影响因子:
3.7
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影响因子:
8.6
作者:
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通讯作者:
A. Morozov
影响因子:
41.2
作者:
DeCamp SJ;Redner GS;Baskaran A;Hagan MF;Dogic Z
通讯作者:
Dogic Z