Variance reduction methods for CONNFFESSIT-like simulations

被引：59

作者：

Bonvin, J ^{[1
]}

Picasso, M ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Dept Math, CH-1015 Lausanne, Switzerland

来源：

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 1999年 / 84卷 / 2-3期

关键词：

CONNFFESSIT; dumbbells; equilibrium; FENE;

D O I：

10.1016/S0377-0257(98)00179-7

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The aim of this paper is to present simple but efficient variance reduction methods for CONNFFESSIT-like simulations, extending the ideas of Hulsen et al. [J. Non-Newtonian Fluid Mech. 70 (1997) 79-101] and Ottinger et al. [J. Non-Newtonian Fluid Mech. 70 (1997) 255-261]. Strongly correlated local ensembles of dumbells were used, and equilibrium ensembles of dumbbells were subtracted. This idea is extended here to non-equilibrium ensembles of dumbbells. The methods are first presented in the frame of the plane Couette flow for Hookean and FENE dumbbells. Extensions to two-dimensional flows are discussed. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：191 / 215

页数：25

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