Effective Interactions for Large-Scale Simulations of Complex Fluids
Effective Interactions for Large-Scale Simulations of Complex Fluids
复制标题
复杂流体大规模模拟的有效交互
DOI：
10.1007/3-540-45837-9_6
复制
发表时间：
2002
期刊：
影响因子：
3.9
通讯作者：
H. Löwen
中科院分区：
文献类型：
--
作者：
J. Hansen;H. Löwen
复杂流体的模拟自然涉及广泛不同的长度尺度。整合出微观自由度的一部分，导致有效相互作用的概念，并提供了一个“粗粒度”的图片，可以更有效地模拟比一个完整的微观模型。这种方法在复杂流体中桥接了长度尺度。在本章中，我们证明这一程序的统计力学水平，并将其应用到各种不同的系统，从带电的胶体分散体和聚合物溶液（包括星星聚合物和树枝状聚合物）的胶体和聚合物的混合物和二元胶体混合物。当这个概念被转移到纳米尺度所产生的问题被指出。最后简要讨论了复杂流体中时间尺度的桥接问题。
The simulation of complex fluids naturally involves widely different length scales. Integrating out parts of the microscopic degrees of freedom leads to the concept of effective interactions and provides a “coarse-grained” picture which can be simulated much more efficiently than a full microscopic model. This approach bridges length scales in complex fluids. In this chapter, we justify this procedure on a Statistical Mechanics level and apply it to a variety of different systems ranging from charged colloidal dispersions and polymer solutions (including star polymers and dendrimers) to mixtures of colloids and polymers and binary colloidal mixtures. Problems arising when this concept is transferred to nano-scales are pointed out. Finally the much harder problem of bridging different time scales in complex fluids is briefly discussed.