Implicit method for simulating electrohydrodynamics of polyelectrolytes.
Implicit method for simulating electrohydrodynamics of polyelectrolytes.
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模拟聚电解质电流体动力学的隐式方法
DOI：
10.1103/physrevlett.105.148301
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发表时间：
2010
影响因子：
8.6
通讯作者：
G. W. Slater
中科院分区：
文献类型：
--
作者：
O. A. Hickey;C. Holm;J. L. Harden;G. W. Slater
我们介绍了一种新的方法来将Lennard-Jones微珠耦合到晶格-Boltzmann流体上，方法是增加一个表示德拜层内相对于周围流体的滑移的项。该方法产生了真实的带电自由链的电泳动力学，以及在薄的德拜层的极限下的正确的失速力。我们的模拟还演示了由于流体动力相互作用，净中性聚两性离子如何具有非零净作用力。这种方法是模拟电流体力学中各种复杂问题的一种有效方法。
We introduce a novel method to couple Lennard-Jones beads to a lattice-Boltzmann fluid by adding a term which represents the slip within the Debye layer with respect to the surrounding fluid. The method produces realistic electrophoretic dynamics of charged free chains, as well as the correct stall force in the limit of a thin Debye layer. Our simulations also demonstrate how a net-neutral polyampholyte can have a nonzero net force due to hydrodynamic interactions. This method represents an efficient way to simulate a wide variety of complex problems in electrohydrodynamics.