Gu Yunqing, Yu Songwei, Mou Jiegang, Wu Denghao, Zheng Shuihua
School of Measurement and Testing Engineering, China Jiliang University, Hangzhou 310018, China.
College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China.
Materials (Basel). 2020 Jan 17;13(2):444. doi: 10.3390/ma13020444.
Polymer additives and surfactants as drag reduction agents have been widely used in the field of fluid drag reduction. Polymer additives can reduce drag effectively with only a small amount, but they degrade easily. Surfactants have an anti-degradation ability. This paper categorizes the mechanism of drag reducing agents and the influencing factors of drag reduction characteristics. The factors affecting the degradation of polymer additives and the anti-degradation properties of surfactants are discussed. A mixture of polymer additive and surfactant has the characteristics of high shear resistance, a lower critical micelle concentration (CMC), and a good drag reduction effect at higher Reynolds numbers. Therefore, this paper focuses more on a drag reducing agent mixed with a polymer and a surfactant, including the mechanism model, drag reduction characteristics, and anti-degradation ability.
聚合物添加剂和表面活性剂作为减阻剂已在流体减阻领域得到广泛应用。聚合物添加剂只需少量就能有效降低阻力，但它们容易降解。表面活性剂具有抗降解能力。本文对减阻剂的作用机理及减阻特性的影响因素进行了分类。讨论了影响聚合物添加剂降解的因素以及表面活性剂的抗降解性能。聚合物添加剂与表面活性剂的混合物具有高剪切抗性、较低的临界胶束浓度（CMC）以及在较高雷诺数下具有良好的减阻效果。因此，本文更侧重于聚合物与表面活性剂混合的减阻剂，包括其机理模型、减阻特性和抗降解能力。
