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Inertia effects of the fluid and cylinder in coaxial cylindrical rheometer

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Abstract

The inertias of the fluid and the inner cylinder in coaxial cylinder rheometer (CACR) have great influence on the unsteady flow of non-Newtonian fluid. Even for the Newtonian fluid there exist the so called “stress overshoot” phenomenon. In the present article this phenomenon was studied in detail and a method correcting the measured results for an unsteady flow in the rheometer was proposed. It is found that the inertia effect of the fluid can be ignored when the gap between cylinders is small.

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Authors and Affiliations

  1. Dept. of Physics, The Forth Military Medical University, 710032, Xi'an, China

    Zhang Jianbao

  2. Dept. of Eng. Mechanics, Shanghai Jiaotong University, 200240, Shanghai, China

    Kuang Zhenbang

Authors
  1. Zhang Jianbao
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  2. Kuang Zhenbang
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Additional information

The project was supported by the Youth Foundation of the Fourth Military Medical University

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Jianbao, Z., Zhenbang, K. Inertia effects of the fluid and cylinder in coaxial cylindrical rheometer. Acta Mech Sinica 14, 234–238 (1998). https://doi.org/10.1007/BF02487758

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  • DOI: https://doi.org/10.1007/BF02487758

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