Partial draining of a tethered polymer in flow

R. Rzehak, D. Kienle, T. Kawakatsu, W. Zimmermann

研究成果: Article査読

29 被引用数 (Scopus)

抄録

Deformations of a polymer fixed at one end and subjected to a uniform flow are investigated with special emphasis on the hydrodynamic interaction (HI) between polymer segments. The so-called non-draining effect, which results from the collective hydrodynamic back-flow caused by all segments, is calculated for the first time with fluctuating hydrodynamic interactions. HI reduces the viscous drag and the flow partially penetrates the polymer coil. Therefore neither the free-draining nor the non-draining models discussed previously describe the polymer-flow interaction appropriately. Accordingly the f-shell blob model is introduced, describing the partial draining and the transition to a free-draining polymer with increasing flow velocity, similarly as in simulations.

本文言語English
ページ(範囲)821-826
ページ数6
ジャーナルEurophysics Letters
46
6
DOI
出版ステータスPublished - 1999 6月 15
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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