FUNDAMENTAL STEADY FLOW OF POLAR FLUIDS.

Tatsuo Sawada, Takahiko Tanahashi

研究成果: Article

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A few fundamental steady flows of polar fluid, i. e. , flow in a circular tube, flow between two parallel plates and flow between two coaxial cylinders are analyzed with the help of the theory of Eringen. Couple stress and spin angular momentum are considered in this approach. The exact solutions for velocity, micro-rotation, vorticity and shearing stress are obtained mathematically. These solutions are characterized by two parameters, i. e. , the ratio of viscosities epsilon and the size effect parameter lambda which do not appear in a Newtonian fluid. epsilon is the ratio of vortex viscosity to shear viscosity. epsilon means the size relation between the corpuscle and the characteristic length. The solutions are compared with those of Newtonian fluid and it is investigated how they vary with epsilon and lambda . Apparent viscosity is determined for each flow. Material constants of polar fluid can be decided from these apparent viscosities.

元の言語English
ページ(範囲)1778-1786
ページ数9
ジャーナルBulletin of the JSME
24
発行部数196
DOI
出版物ステータスPublished - 1981 1 1
外部発表Yes

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ASJC Scopus subject areas

  • Engineering(all)

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