Related Experiment Video
Updated: Mar 1, 2026

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
Overestimation of Viscosity by the Green-Kubo Method in a Dusty Plasma Experiment
1Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa 52242, USA.
Abstract:
The Green-Kubo (GK) method is widely used in simulations of strongly coupled plasmas to obtain the viscosity coefficient. However, the method's applicability, which is often taken for granted, has not been tested experimentally. We report an experimental test using a two-dimensional strongly coupled dusty plasma. We find that the GK viscosity is ≈60% larger than the result of a benchmark hydrodynamic method, obtained in the same experiment with the same conditions except for the presence of shear.
Related Concept Videos
Viscosity of Fluid
Viscosity
The SI unit of viscosity is...
Viscosity
Kinetic Theory of an Ideal Gas
The number of molecules in one mole is called...
Poiseuille's Law and Reynolds Number
Ostwald’s Dilution Law

