Turbulent drag reduction characteristics of poly(acrylamide-co-acrylic acid) in a rotating disk apparatus

被引：24
|
作者：
Zhang, Ke [1 ]
Choi, Hyoung Jin [1 ]
Jang, Chun Hag [2 ]
机构：
[1] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea
[2] Cheongju Univ, Dept Chem, Cheongju 360764, Chungbuk, South Korea
来源：
COLLOID AND POLYMER SCIENCE | 2011年 / 289卷 / 17-18期
基金：
新加坡国家研究基金会;
关键词：
Copolymer; Turbulent drag reduction; Mechanical degradation; Water-soluble polymer; DILUTE POLYMER-SOLUTIONS; MECHANICAL DEGRADATION; POLY(ETHYLENE) OXIDE; CHAIN CONFORMATIONS; REDUCING POLYMERS; PIPE-FLOW; PREDICTION; ACRYLAMIDE; REDUCERS; SYSTEMS;
D O I：
10.1007/s00396-011-2502-0
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effects of experimental parameters such as temperature, polymer concentration, and rotational speed of the disk on drag reduction properties of water-soluble copolymer of poly(acrylamide-co-acrylic acid) in a turbulent flow were examined. Drag reduction (DR) efficacy up to 45% was found to be dependent on its medium temperature in a rotating disk apparatus. When the temperature was increased, the copolymer was found to be much susceptible to mechanical degradation, indicating that polymer chain scission becomes more severe at elevated temperatures. In addition, the optimum copolymer concentration for high DR efficacy was also observed.
引用
收藏
页码：1821 / 1827
页数：7
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