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Turbulent drag reduction characteristics of poly(acrylamide-co-acrylic acid) in a rotating disk apparatus
被引：1
作者：
Ke Zhang
Hyoung Jin Choi
Chun Hag Jang
机构：
[1] Inha University,Department of Polymer Science and Engineering
[2] Cheongju University,Department of Chemistry
来源：
Colloid and Polymer Science
|
2011年
/
289卷
关键词：
Copolymer;
Turbulent drag reduction;
Mechanical degradation;
Water-soluble polymer;
D O I：
暂无
中图分类号：
学科分类号：
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.
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页码：1821 / 1827
页数：6
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