Static and dynamic shear viscosity of a single layer complex plasma
Plasma Physics
2012-08-07 v2 Soft Condensed Matter
Fluid Dynamics
Abstract
We measured the static and dynamic (complex) shear viscosity of a single layer complex plasma by applying, respectively, a stationary and a periodically modulated shear stress induced by the light pressure of manipulating laser beams. Under static conditions the shear viscosity reproduced the numerically predicted shear rate dependence, the so called shear-thinning effect. Under oscillating shear both the magnitude and the ratio of the dissipative and elastic contributions to the complex viscosity show strong frequency dependence. Accompanying molecular dynamics simulations explain and support the experimental observations.
Keywords
Cite
@article{arxiv.1103.0124,
title = {Static and dynamic shear viscosity of a single layer complex plasma},
author = {Peter Hartmann and Máté Csaba Sándor and Anikó Kovács and Zoltán Donkó},
journal= {arXiv preprint arXiv:1103.0124},
year = {2012}
}
Comments
accepted by Phys. Rev. E