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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.100 P.1~7

http://doi.org/10.1631/jzus.2005.AS0001


Non-axisymmetric instability in the Taylor-Couette flow of fiber suspension


Author(s):  WAN Zhan-hong, LIN Jian-zhong, YOU Zhen-jiang

Affiliation(s):  Department of Mechanics, the State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   jzlin@sfp.zju.edu.cn

Key Words:  Fiber suspensions, Taylor-Couette flow, Hydrodynamic instability


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WAN Zhan-hong, LIN Jian-zhong, YOU Zhen-jiang. Non-axisymmetric instability in the Taylor-Couette flow of fiber suspension[J]. Journal of Zhejiang University Science A, 2005, 6(100): 1~7.

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%A YOU Zhen-jiang
%J Journal of Zhejiang University SCIENCE A
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A1 - YOU Zhen-jiang
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VL - 6
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DOI - 10.1631/jzus.2005.AS0001


Abstract: 
An analysis of the instability in the taylor-Couette flow of fiber suspensions with respect to the non-axisymmetric disturbances was performed. The constitutive model proposed by Ericksen was used to represent the role of fiber additives on the stress tensor. The generalized eigenvalue equation governing the hydrodynamic stability of the system was solved using a direct numerical procedure. The results showed that the fiber additives can suppress the instability of the flow. At the same time, the non-axisymmetric disturbance is the preferred mode that makes the fiber suspensions unstable when the ratio of the angular velocity of the outer cylinder to that of the inner cylinder is a large negative number.

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Reference

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