Polymer-induced turbulent drag reduction

被引：70
|
作者：
Choi, HJ
Jhon, MS
机构：
[1] CARNEGIE MELLON UNIV,DEPT CHEM ENGN,PITTSBURGH,PA 15213
[2] INHA UNIV,DEPT POLYMER SCI & ENGN,INCHON 402751,SOUTH KOREA
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1996年 / 35卷 / 09期
关键词：
D O I：
10.1021/ie9507484
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Turbulent drag reduction induced by dilute solutions of both water-soluble poly(ethylene oxide) (PEO) and oil-soluble polyisobutylene (PIB) under turbulent flow in a rotating disk apparatus was investigated. The concentration dependence of drag reduction for these systems was shown to obey an empirical drag reduction equation which has been previously applied to describe flow in circular pipes. Linear correlation between polymer concentration and drag reduction for different molecular weights of PEO and PIB was also obtained. The intrinsic concentration [C] was found to be very useful in normalizing the drag reduction data for different types of polymers, polymer molecular weights, concentrations, and rotational disk velocities. Explanation of the drag reduction phenomenon on a molecular level can be obtained from intrinsic drag reduction and [C].
引用
收藏
页码：2993 / 2998
页数：6
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