Orientational fluctuations of nematic liquid crystals under shear flow

剪切流下向列液晶的取向波动

• 批准号: 22540416
• 负责人: ORIHARA Hiroshi
• 金额: $ 2.91万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22540416/
• 关键词: 非平衡ゆらぎ; せん断流; 液晶; コロイド; 応答関数; 異常拡散; レオロジー; 非平衡定常ゆらぎ; 配向ゆらぎ; 非保存力; 動的光散乱; 相互相関関数; ブラウン運動

We have investigated the nonequilibrium steady state fluctuations of sheared colloids and nematic liquid crystals. Anomalous dispersion giving rise to a cubic term with respect to time in the mean-square distance has been experimentally observed in sheared colloids for the first time. The stress response of a liquid crystal to ac electric fields was measured under shear flow. As a result, anomaly characteristic to nonequilibrium steady state was observed, which was clarified to originate from the nonconservative forces caused by the shear flow.

我们研究了剪切胶体和向列液晶的非平衡稳态涨落。首次在剪切胶体中通过实验观察到在均方距离中产生相对于时间的立方项的反常色散。在剪切流下测量液晶对交流电场的应力响应。结果，观察到非平衡稳态的异常特征，这被澄清是源于剪切流引起的非保守力。

项目成果

外場下における非相溶高分子ブレンドの構造形成とレオロジー

外部条件下不相容聚合物共混物的结构形成和流变学

• 发表时间: 2011
• 作者: 折原宏;羅亮皓;會田航平;西本祐樹;長屋智之;氏家誠司
• 通讯作者: 氏家誠司

Measurement of electrically induced sh ear strain in chiral smectic liquid crystal elastomer

手性近晶液晶弹性体电致剪切应变的测量

• 发表时间: 2011
• 作者: Y. H. Na;Y. Aburaya;K. Hiraoka andH. Orihara
• 通讯作者: K. Hiraoka andH. Orihara

Brownian motion in shear flow: Direct observation of anomalous diffusion

• DOI: 10.1103/physreve.84.061120
• 发表时间: 2011-12-12
• 期刊: PHYSICAL REVIEW E
• 影响因子: 2.4
• 作者: Orihara, Hiroshi;Takikawa, Yoshinori
• 通讯作者: Takikawa, Yoshinori

Viscosity of MBBA in the Presence of Electro-hydrodynamic Convection under an Electric Field

电场下存在电流体动力对流时 MBBA 的粘度

• 发表时间: 2010
• 作者: T.Nagaya;Y.H.Na;H.Orihara;S.Nara
• 通讯作者: S.Nara

Morphology and rheology of immiscible polymer blends in electric and shear flow fields" in Non-equilibrium soft matter physics edited by S. Komura and T. Ohta

电场和剪切流场中不混溶聚合物共混物的形态学和流变学”，载于 S. Komura 和 T. Ohta 编辑的非平衡软物质物理

• 发表时间: 2011
• 作者: 今井由美;阿部文佳;野々村美宗;高寺政行;H. Orihara
• 通讯作者: H. Orihara