Ideal Gas Behavior of a Strongly Coupled Complex (Dusty) Plasma

Oxtoby, Neil P.; Griffith, Elias J.; Durniak, C.; Ralph, Jason F.; Samsonov, D.

doi:10.1103/physrevlett.111.015002

Cited by 28 publications

(15 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The shock front structure (see Fig. 1) has been the subject of several studies in gases [2][3][4][5][6][7][8], plasmas [9][10][11], and in granular materials [12][13][14][15][16][17][18][19]. A normal shock wave was first described as a discontinuity.…”

Section: Introductionmentioning

confidence: 99%

Structure of velocity distributions in shock waves in granular gases with extension to molecular gases

2016

View full text Add to dashboard Cite

Velocity distributions in normal shock waves obtained in dilute granular flows are studied. These distributions cannot be described by a simple functional shape and are believed to be bimodal. Our results show that these distributions are not strictly bimodal but a trimodal distribution is shown to be sufficient. The usual Mott-Smith bimodal description of these distributions, developed for molecular gases, and based on the coexistence of two subpopulations (a supersonic and a subsonic population) in the shock front, can be modified by adding a third subpopulation. Our experiments show that this additional population results from collisions between the supersonic and subsonic subpopulations. We propose a simple approach incorporating the role of this third intermediate population to model the measured probability distributions and apply it to granular shocks as well as shocks in molecular gases.

show abstract

Section: Introductionmentioning

confidence: 99%

Structure of velocity distributions in shock waves in granular gases with extension to molecular gases

2016

View full text Add to dashboard Cite

show abstract

“…The pressure p is typically an important physical quantity in thermodynamical procedures, which is not easy to be studied in dusty plasma experiments. 33 Note that here the pressure is the internal force per unit length of the 2D lattice due to the interaction and collision of dust particles, not the plasma gas pressure. In our literature search, we have found previous studies of the pressure for 2D Yukawa liquids.…”

Section: Introductionmentioning

confidence: 99%

Equations of state and diagrams of two-dimensional liquid dusty plasmas

Feng

Lin

et al. 2016

Physics of Plasmas

View full text Add to dashboard Cite

Recently, the pressure of two-dimensional (2D) Yukawa liquids has been calculated from the simulations of isochores [Feng et al., J. Phys. D: Appl. Phys. 49, 235203 (2016)], which is applicable to 2D dusty plasmas. Thus, the equation of state for 2D strongly coupled liquid dusty plasmas is obtained. Isobars and isotherms of 2D liquid dusty plasmas are derived from this equation of state. For 2D liquid dusty plasmas, the surface corresponding to this equation of state has also been obtained in the 3D space of the pressure, the temperature, and the screening parameter which is related to the volume in the equilibrium state.

show abstract

“…Comparing the magnitude of the potential and kinetic terms, we will find that the potential term dominates for most of the parameter space studied here. In a recent experiment [50], it has been discovered that a strongly coupled monolayer dusty plasma seems to obey the ideal-gas equation of state, which suggests that the kinetic contribution of the pressure plays an important role in some parameter regimes.…”

Section: Introductionmentioning

confidence: 99%

Pressure of two-dimensional Yukawa liquids

Feng¹,

Goree²,

Liu³

et al. 2016

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

A simple analytic expression for the pressure of a two-dimensional Yukawa liquid is found by fitting results from a molecular dynamics simulation. The results verify that the pressure can be written as the sum of a potential term which is a simple multiple of the Coulomb potential energy at a distance of the Wigner-Seitz radius, and a kinetic term which is a multiple of the one for an ideal gas. Dimensionless coefficients for each of these terms are found empirically, by fitting. The resulting analytic expression, with its empirically determined coefficients, is plotted as isochores, or curves of constant area. These results should be applicable to monolayer dusty plasmas.

show abstract

Ideal Gas Behavior of a Strongly Coupled Complex (Dusty) Plasma

Cited by 28 publications

References 31 publications

Structure of velocity distributions in shock waves in granular gases with extension to molecular gases

Structure of velocity distributions in shock waves in granular gases with extension to molecular gases

Equations of state and diagrams of two-dimensional liquid dusty plasmas

Pressure of two-dimensional Yukawa liquids

Contact Info

Product

Resources

About