Universal drag reduction characteristics of polyisobutylene in a rotating disk apparatus

被引：34

作者：

Choi, HJ ^{[1
]}

Kim, CA

Jhon, MS

机构：

[1] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea

[2] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA

来源：

POLYMER | 1999年 / 40卷 / 16期

关键词：

drag reduction; polyisobutylene; rotating disk apparatus;

D O I：

10.1016/S0032-3861(98)00869-6

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Turbulent drag reduction (DR) in a rotating disk apparatus was examined for a homologous series of polyisobutylene (PIB) with two different solvent systems to investigate the effect of solvent on universal DR characteristics. The concentration dependence of DR for these systems obeys an empirical universal DR equation. A linear correlation between polymer concentration (C) and C/DR for different molecular weights of PIE was also obtained. The intrinsic concentration was found to be an extremely useful quantity in normalizing the DR data for a homologous series of PIE. The characteristic value, K, was found to depend upon the solvent system. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：4527 / 4530

页数：4

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