Chain molecule deformation in a uniform flow - A computer experiment

被引：13

作者：

Cheon, M

Chang, I

Koplik, J

Banavar, JR

机构：

[1] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[2] Penn State Univ, Ctr Phys Mat, University Pk, PA 16802 USA

[3] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea

[4] CUNY City Coll, Dept Phys, New York, NY 10031 USA

[5] CUNY City Coll, Benjamin Levich Inst, New York, NY 10031 USA

来源：

EUROPHYSICS LETTERS | 2002年 / 58卷 / 02期

关键词：

D O I：

10.1209/epl/i2002-00625-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the stretching of a polymer in a uniform flow using molecular dynamics (MD) simulations. Our MD simulations represent an ab-initio experiment with no explicit assumption for the dynamics of a single chain except for using the generic Lennard-Jones and the FENE potentials. In spite of the modest length of our simulated chains, the qualitative features of experiments on DNA are reproduced and the predictions of a wormlike chain theory are found to hold, with the polymer molecule being free draining at large extensions.

引用

页码：215 / 221

页数：7

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