Inhomogeneous Flow in a One-Component Poly1meric Fluid with a Nonmonotonic Constitutive Law
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- Tanaka Hajime
- Institute of Industrial Science, University of Tokyo, Meguro–ku, Tokyo 153–8505
書誌事項
- タイトル別名
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- Inhomogeneous Flow in a One-Component Polymeric Fluid with a Nonmonotonic Constitutive Law.
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We propose a phenomenological model of mechanical instability in a polymer melt having a nonmonotonic constitutive law. It relies on the fact that a nonmonotonic constitutive law is a result of shear-induced orientational ordering of polymers and this orientational order parameter has a common symmetry with that of liquid crystal. Our model shows that there exists gradient energy of “purely mechanical origin” associated with shear-rate inhomogeneity. We derive a “nonlocal” phenomenological equation describing shear banding, which is similar to the Cahn-Hilliard equation. The analogy of inhomogenization of flow fields to phase separation is discussed.
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ
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Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ 69 (2), 299-302, 2000
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679159251840
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- NII論文ID
- 110001971352
- 130004537424
- 210000102519
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- NII書誌ID
- AA00704814
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- BIBCODE
- 2000JPSJ...69..299T
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 5289893
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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