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Advances in Materials Science and Engineering
Volume 2016 (2016), Article ID 5108401, 8 pages
Research Article

Visualization Experiment on Electrorheological Fluid in Dynamic Coupling Field

1School of Mechanical Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
2RACE, The University of Tokyo, Tokyo 113-8656, Japan

Received 17 November 2015; Accepted 3 May 2016

Academic Editor: Santiago Garcia-Granda

Copyright © 2016 Shisha Zhu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Due to lack of visualization experiment on the mechanism of electrorheological effect in dynamic field, a visualization experimental system is designed and successfully made. Through this experiment, the submicroscopic dynamic structural changes of electrorheological (ER) fluids in the coupling field composed by external electric field and flow field are observed. The experimental results indicate that the rheological behaviors of ER fluids are mainly influenced by the polarization forces and the hydrodynamic forces in the dynamic coupling field. And the experiment shows that the yield fracture of chain structures determined the yield strength of ER fluids firstly occurring near the plate electrodes, which expresses the microflow characteristic of velocity slip. Meanwhile, the capture effect has been verified in this experiment.