Viscosity of a dusty plasma liquid
- Russian Academy of Sciences, Institute of Thermal Physics of Extreme States (Russian Federation)
We present the results of our experimental study of the flow of a dusty plasma liquid produced by macroparticles in an argon plasma. The dependences of shear viscosity for such a liquid on the magnitude of the external force inducing the dusty plasma liquid flow and on the plasma-generating gas pressure are analyzed. We have established that the viscosity of a dusty plasma medium decreases with increasing shear stress in it, while the viscosity of such a liquid increases with buffer gas pressure. The flow of a dusty plasma liquid under the action of an external force has been found to resemble the plastic deformation of a Bingham body. We suggest that the formation of crystal-like dusty plasma clusters in a 'liquid' phase can be responsible for the non-Newtonian behavior of the dusty plasma liquid flow.
- OSTI ID:
- 21075687
- Journal Information:
- Journal of Experimental and Theoretical Physics, Vol. 105, Issue 4; Other Information: DOI: 10.1134/S1063776107100172; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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