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On the Stability of Nonzero Pressure Gradient Couette Flow of ER Fluid
Peng Jie,Zhu Keqin,Xi Baoshu
Author NameAffiliation
Peng Jie Department of Engineering Mechanics, Tsinghua University, Beijing　100084 
Zhu Keqin Department of Engineering Mechanics, Tsinghua University, Beijing　100084 
Xi Baoshu Department of Engineering Mechanics, Tsinghua University, Beijing　100084 
Abstract:
A linearized stability analysis of the nonzero pressure gradient Couette flow of ER fluid has been performed. The constructive equation used here was established by Wineman and Rajagopal. After numerical evaluation, it comes that any motions of the boundary wall are shown to have a stabilizing effect. With the applied extra electric field, the effect of ERF can also enhance the stability.
Key words:  Electrorheological fluid, Stability, O-S equation
FundProject:国家自然科学基金(19834020)和清华大学基础研究基金(JC2000037)资助项目.
平行平板间电流变液非零压力梯度Couette流动的稳定性分析
彭杰,朱克勤,席葆树
摘要:
采用Rajagopal和Wineman所提出本构方程,对电流变液在二维平行平板间非零压力梯度Couette流动的线性稳定性问题进行研究.通过分析和数值计算发现,任何壁面运动都将使流动稳定性增强.在外加电场存在的情况下,电流变液效应也将使流动稳定性增强.
关键词:  电流变液  稳定性  O-S方程
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