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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  0, Vol. 6 Issue (100): 1-7    DOI: 10.1631/jzus.2005.AS0001
Mechanical & Energy Engineering     
Non-axisymmetric instability in the Taylor-Couette flow of fiber suspension
WAN Zhan-hong, LIN Jian-zhong, YOU Zhen-jiang
Department of Mechanics, the State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China; School of Informatics and Engineering, Flinders University of South Australia, GPO Box 2100, Adelaide, SA 5001, Australia
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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.

Key words： Fiber suspensions      Taylor-Couette flow      Hydrodynamic instability     
Received: 20 January 2005     
CLC:  O359  
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WAN Zhan-hong
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YOU Zhen-jiang
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WAN Zhan-hong, LIN Jian-zhong, YOU Zhen-jiang. Non-axisymmetric instability in the Taylor-Couette flow of fiber suspension. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 0, 6(100): 1-7.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2005.AS0001     OR     http://www.zjujournals.com/xueshu/zjus-a/Y0/V6/I100/1

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