Flow behavior of viscoelastic fluid in high speed planar elongational flow

粘弹性流体在高速平面拉伸流中的流动行为

• 批准号: 23760167
• 负责人: KATO Manabu
• 金额: $ 2.91万
• 依托单位: Tsuyama National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23760167/
• 关键词: 非ニュートン流; 伸張レオメトリー; 平面伸張流動; コア シース流れ; シースコア流れ; 偏光観察; 界面活性剤水溶液; 高分子融液; 粘弾性流体

It is proposed that the technique to generate planar elongational flow with high elongational rate by using core/sheath flow. In this study we carried out experiments to observe flow behavior for both viscous fluid and viscoelastic fluid in the flow. It is observed for viscoelastic fluid that flow behavior of the core fluid shows four kind of flow patterns from result of flow visualization and velocity profile. Next, we evaluated molecular orientation profile of elongated fluid by using crossed nicols method. As the results, measure of molecular orientation doesn’t depend on the distance to sidewalls of the flow cell in elongational flow region. It is shown that contribution elongational property to the flow can be discuss from results of distribution of molecular orientation along center line of the flow cell.

提出了利用芯鞘流产生高拉伸率的平面拉伸流的技术。在这项研究中，我们进行了实验，以观察流动中的粘性流体和粘弹性流体的流动行为。对于粘弹性流体，从流场显示和速度剖面的结果可以看出，岩心流体的流动行为表现出四种流型。其次，我们利用正交尼科尔方法评估拉长流体的分子取向分布。结果表明，在拉伸流动区，分子取向的大小不依赖于到流动池侧壁的距离。结果表明，拉伸性能对流动的贡献可以从分子取向沿着流动池中心线的分布结果来讨论。

项目成果

シースコア流れ内平面伸張流動場における粘弾性流体の流動挙動と分子配向

皮芯流平面拉伸流场中粘弹性流体的流动行为和分子取向

• 发表时间: 2013
• 作者: M. Motozawa;J. Chang;T. Sekine;T. Sawada and Y. Kawaguchi;Itsuo Hanasaki and Yoshitada Isono;加藤学,高橋勉
• 通讯作者: 加藤学,高橋勉

Influence of fluid elasticity to planar elongational flow in Core/Sheath flow

流体弹性对芯/鞘流中平面拉伸流的影响

• 发表时间: 2012
• 作者: Manabu KATO;Yukinobu SUGIHARA;Tsutomu TAKAHASHI;花崎逸雄,川野聡恭;杉山智哉,後藤俊幸,渡邊威;Manabu KATO
• 通讯作者: Manabu KATO

Influence of fluid elasticitytoplanarelongationalflow in Core/Sheath flow

芯/鞘流中流体弹性对平面拉伸流的影响

• 发表时间: 2012
• 作者: Manabu KATO;Yukinobu SUGIHARA;Tsutomu TAKAHASHI
• 通讯作者: Tsutomu TAKAHASHI