Dynamics simulation of electrorheological suspensions in poiseuille flow field

摘要：

Based on a modified Maxwell-Wagner model, molecular dynamics is carried out to simulate the structural changes of ER (electrorheoiogieal) suspensions in a poiseuille flow field. The simulation results show that the flow assists in the collection of particles at the electrodes under a low pressure gradient, and the negative ER effect will show under a high pressure gradient. By analyzing the relationship curves of the shear stress and the pressure gradient in different relaxation time, it is found that for the same kind of ER suspensions materials, there is an optimal dielectric relaxation frequency.

关键词： electrorheological suspensions molecular dynamics pressure gradient value relaxation time

作者: ZHU Shi-sha(朱石沙) LUO Cheng(罗成) ZHOU Jie(周杰) CHEN Na(陈娜)

作者单位: College of Mechanical Engineer, Xiangtan University, Xiangtan 411105, China Changshu Institute of Te College of Mechanical Engineer, Xiangtan University, Xiangtan 411105, China

会议类型: 国际会议

会议名称: 第九届全国流变学学术会议

会议地点: 长沙

会议语种:英文

页码: 234-238

在线出版日期: 2008-09-28（万方平台首次上网日期，不代表论文的发表时间）