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Phys. Rev. E 62, 6846–6850 (2000)

Dynamic electrorheological effects and interparticle force between a pair of rotating spheres

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Jones T. K. Wan1, K. W. Yu1, and G. Q. Gu1,2
1Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
2College of Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200 093, China

Received 29 February 2000; published in the issue dated November 2000

We consider a two-particle system in which a particle is held fixed, and the other one rotates around the axis perpendicular to the line joining the particles’ centers. The rotating particle leads to a displacement of its polarization charge on the surface. Our results show that the rotational motion of the particles generally reduces the force between the particles. The dependence of interparticle force on the angular velocity of rotation will be discussed.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.62.6846
DOI:
10.1103/PhysRevE.62.6846
PACS:
83.80.Gv, 77.84.Lf, 77.22.Gm, 41.20.Cv