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Electro-Rheological Response of Liquid Crystals under Oscillatory Squeeze Flow
http://hdl.handle.net/10191/6322
http://hdl.handle.net/10191/63225e86a75d-43bb-4a08-9d9d-03054fa31030
名前 / ファイル | ライセンス | アクション |
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14_0021.pdf (1.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-04-23 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Electro-Rheological Response of Liquid Crystals under Oscillatory Squeeze Flow | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Electro-Rheological Fluid | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Liquid Crystal | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Squeeze Flow | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Oscillatory Flow | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Non-Newtonian Fluid | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Flow Control | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Narumi, Takatsune
× Narumi, Takatsune× See, Howard× Yamaguchi, Yasuhiro× Hasegawa, Tomiichi |
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著者別名 | ||||||
識別子 | 7195 | |||||
識別子Scheme | WEKO | |||||
姓名 | 鳴海, 敬倫 | |||||
言語 | ja | |||||
著者別名 | ||||||
識別子 | 7196 | |||||
識別子Scheme | WEKO | |||||
姓名 | 長谷川, 富市 | |||||
言語 | ja | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We have investigated the electro-rheological (ER) properties of liquid crystals in an oscillatory squeezing flow. A Micro Fourier Rheometer was utilized to estimate the complex viscosity and phase shift. A clear dip in the phase angle was observed, centred around a frequency which increased with electric field strength. It was found that this critical frequency was proportional to the inverse of the response time required for the liquid crystal molecules to align under the electric field. Similar ER effects to those observed under steady shearing were obtained in the oscillatory flow, but the ER effect at high frequency is smaller than that under no electric field. In other words, a negative ER effect was obtained under low electric fields. A rheological model for the dynamic response was obtained through the control theory and the transfer function thus derived will be useful for estimating the output response in a flow or motion control system. | |||||
言語 | en | |||||
書誌情報 |
en : JSME international journal. Series B-Fluids and thermal engineering 巻 48, 号 3, p. 524-531, 発行日 2005-08 |
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出版者 | ||||||
言語 | en | |||||
出版者 | Japan Society of Mechanical Engineers | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1340-8054 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10888815 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://doi.org/10.1299/jsmeb.48.524 | |||||
権利 | ||||||
権利情報 | 日本機械学会 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
著者版フラグ | ||||||
値 | publisher |