Efficient simulation of thermally fluctuating biopolymers immersed in fluids on 1-micron, 1-second scales
Efficient simulation of thermally fluctuating biopolymers immersed in fluids on 1-micron, 1-second scales
复制标题
以 1 微米、1 秒的尺度有效模拟浸没在流体中的热波动生物聚合物
DOI:
10.1016/j.jcp.2018.12.039
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发表时间:
2019
影响因子:
4.1
通讯作者:
Allard, Jun
中科院分区:
文献类型:
--
作者:
Liu, Kai;Lowengrub, John;Allard, Jun
The combination of fluid-structure interactions with stochasticity, due to thermal fluctuations, remains a challenging problem in computational fluid dynamics. We develop an efficient scheme based on the stochastic immersed boundary method, Stokeslets, and multiple timestepping. We test our method for spherical particles and filaments under purely thermal and deterministic forces and find good agreement with theoretical predictions for Brownian Motion of a particle and equilibrium thermal undulations of a semi-flexible filament. As an initial application, we simulate bio-filaments with the properties of F-actin. We specifically study the average time for two nearby parallel filaments to bundle together. Interestingly, we find a two-fold acceleration in this time between simulations that account for long-range hydrodynamics compared to those that do not, suggesting that our method will reveal significant hydrodynamic effects in biological phenomena.
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DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
J. Klement
通讯作者:
J. Klement
DOI:
10.1002/cnm.1454
发表时间:
2011
影响因子:
2.1
作者:
Elizabeth L. Bouzarth;A. Layton;Y. Young
通讯作者:
Y. Young
影响因子:
3.4
作者:
Liu,Kai;Hamilton,Caleb;Allard,Jun;Lowengrub,John;Li,Shuwang
通讯作者:
Li,Shuwang
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
Igor Cialenco;N. Glatt
通讯作者:
N. Glatt
影响因子:
4.1
作者:
Lowengrub J;Allard J;Aland S
通讯作者:
Aland S