A study on Cationic Surfactants as Drag-Reducing Additives
A study on Cationic Surfactants as Drag-Reducing Additives
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阳离子表面活性剂减阻剂的研究
DOI：
10.1080/00986440214579
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发表时间：
2002
影响因子：
2.5
通讯作者：
Hiroshi Suzuki
中科院分区：
文献类型：
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作者：
H. Sugawara;M. Yamauchi;Futao Wakui;H. Usui;Hiroshi Suzuki
在这项研究中，我们研究了具有一个油基的阳离子表面活性剂的乙醇（EO）基团的数目对减阻效果（DR效果）的影响。此外，使用两个实验装置，循环系统（有泵）和加压直流系统（无泵）的机械泵功率对DR效果的影响进行了实验研究。本研究的结论是：1. DR效应强烈依赖于机械破坏的胶束的重新形成速率。2.当DR表面活性剂的EO基团数从0增加到2时，大DR效应的可用温度范围被移动到更低。但具有三个EO基团的DR表面活性剂（EO-3）即使在低温下也几乎不显示DR效果。这是因为EO基团的大亲水头可能延迟了被泵功率破坏的胶束的重新形成。3.随着温度的降低，激光器的DR效应更容易受到泵浦功率的影响。这是因为在低温下需要很长时间来重新形成被泵功率破坏的胶束。
In this study, we investigated the influence of the number of ethanol (EO) groups of cationic surfactants having one oleyl group on the drag-reducing effect (DR effect). Also the effect of mechanical pumping power on DR effect was experimentally investigated using two experimental setups, a circulation system (with pump) and a pressurized once-through system (without pump). The concluding remarks obtained in this study are: 1. The DR effect strongly depends on the re-formation rate of micelles disrupted mechanically. 2. When increasing the number of EO groups of the DR surfactants from 0 to 2, the available temperature range of large DR effect was shifted lower. But the DR surfactant having three EO groups (EO-3) barely exhibited the DR effect even at the low temperature. This is because the big hydrophilic head of EO groups probably delays the re-formation of micelles disrupted by pumping power. 3. The DR effect was more liable to be influenced by pumping power with a decrease in temperature. This is because it takes a long time to re-form micelles disrupted by pumping power at low temperature.