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相关论文: Numerical simulation of thermal properties in two-…

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A concise overview of the vibrational model of heat transfer in simple fluids with soft pairwise interactions is presented. The model is applied to evaluate the thermal conductivity coefficient of the strongly coupled Yukawa fluid, which…

等离子体物理 · 物理学 2023-03-20 Sergey Khrapak

The existence of coefficients for diffusion, viscosity and thermal conductivity is examined for two-dimensional (2D) liquids. Equilibrium molecular dynamics simulations are performed using a Yukawa potential, and the long-time behavior of…

流体动力学 · 物理学 2009-11-13 Zoltan Donko , John Goree , Peter Hartmann , Bin Liu

A vibrational model of heat conduction in liquids with soft pairwise interactions is applied to estimate the thermal conductivity coefficient of strongly coupled Yukawa fluids. A reasonable agreement with the available data from numerical…

等离子体物理 · 物理学 2021-10-12 Sergey Khrapak

Thermodynamics of two-dimensional Yukawa (screened Coulomb or Debye-H\"uckel) systems is studied systematically using molecular dynamics (MD) simulations. Simulations cover very broad parameter range spanning from weakly coupled gaseous…

等离子体物理 · 物理学 2017-04-05 Nikita Kryuchkov , Sergey Khrapak , Stanislav Yurchenko

We perform non-equilibrium simulations to study heat conduction in two-dimensional strongly coupled dusty plasmas. Temperature gradients are established by heating one part of the otherwise equilibrium system to a higher temperature. Heat…

等离子体物理 · 物理学 2015-05-13 Lu-Jing Hou , Alexander Piel

Simulations are reported to investigate solid superheating and liquid supercooling of two-dimensional (2D) systems with a Yukawa interparticle potential. Motivated by experiments where a dusty plasma is heated and then cooled suddenly, we…

等离子体物理 · 物理学 2011-04-20 Yan Feng , Bin Liu , J. Goree

Recent results on theoretical studies of heat conduction in low-dimensional systems are presented. These studies are on simple, yet nontrivial, models. Most of these are classical systems, but some quantum-mechanical work is also reported.…

统计力学 · 物理学 2009-11-13 Abhishek Dhar

Simple practical approach to estimate thermodynamic properties of strongly coupled Yukawa systems, in both fluid and solid phases, is presented. The accuracy of the approach is tested by extensive comparison with direct computer simulation…

等离子体物理 · 物理学 2015-05-21 Sergey A. Khrapak , Nikita P. Kryuchkov , Stanislav O. Yurchenko , Hubertus M. Thomas

The thermal conductivity of classical multi-component fluids is seemingly affected by the intrinsic arbitrariness in the definition of the atomic energies and it is ill-conditioned numerically, when evaluated from the Green-Kubo theory of…

统计力学 · 物理学 2019-09-30 Riccardo Bertossa , Federico Grasselli , Loris Ercole , Stefano Baroni

Near field radiative heat transfer and dynamic Casimir forces are just two instances of topics of technological and fundamental interest studied via the formalism of fluctuational electrodynamics. From the perspective of experiment and…

量子物理 · 物理学 2015-06-16 Vladyslav A. Golyk , Matthias Krüger , Mehran Kardar

The evaluation of transport coefficients in extended systems, such as thermal conductivity or shear viscosity, is known to require impractically long simulations, thus calling for a paradigm shift that would allow to deploy state-of-the-art…

统计力学 · 物理学 2019-09-30 Loris Ercole , Aris Marcolongo , Stefano Baroni

The Green-Kubo theory of thermal transport has long be considered incompatible with modern simulation methods based on electronic-structure theory, because it is based on such concepts as energy density and current, which are ill-defined at…

统计力学 · 物理学 2018-08-20 Stefano Baroni , Riccardo Bertossa , Loris Ercole , Federico Grasselli , Aris Marcolongo

A simple vibrational model of heat transfer in two-dimensional (2D) fluids relates the heat conductivity coefficient to the longitudinal and transverse sound velocities, specific heat, and the mean interatomic separation. This model is…

等离子体物理 · 物理学 2021-01-15 Sergey Khrapak

We rederive the Green-Kubo relation establishing a connection between the near- and far-field heat transfer between two objects out of equilibrium to the equilibrium fluctuations of these objects in an arbitrary environment. Employing the…

介观与纳米尺度物理 · 物理学 2020-08-12 F. Herz , S. -A. Biehs

Diffusion of dust particles is one of the most significant transport processes of strongly coupled dusty plasma that reflect the nature of inter particle interaction and characterize thermodynamics of the system. In this paper the effect of…

等离子体物理 · 物理学 2014-04-18 Mahmuda Begum , Nilakshi Das

In this paper, we study exactly the thermal conductance for a low dimensional system represented by two coupled massive Brownian particles, both directly and via a Green-Kubo expression. Both approaches give exactly the same result. We also…

统计力学 · 物理学 2011-07-01 W. A. M. Morgado , D. O. Soares-Pinto

In dusty (complex) plasmas, containing mesoscopic charged grains, the grain-grain interaction in many cases can be well described through a Yukawa potential. In this Review we summarize the basics of the computational and theoretical…

等离子体物理 · 物理学 2009-11-13 Zoltan Donko , Gabor J. Kalman , Peter Hartmann

The longitudinal viscosity $\eta_l$ is obtained for a two-dimensional (2D) liquid using a Green-Kubo method with a molecular dynamics simulation. The interparticle potential used has the Debye-H\"{u}ckel or Yukawa form, which models a 2D…

等离子体物理 · 物理学 2015-06-12 Yan Feng , J. Goree , Bin Liu

In this paper thermal conductivity and thermal diffusivity of a two layer system is examined from the theoretical point of view. We use the one dimensional heat diffusion equation with the appropriate solution in each layer and boundary…

凝聚态物理 · 物理学 2009-10-28 G. Gonzalez de la Cruz , Yu. G. Gurevich

The thermodynamic and structural properties of two dimensional dense Yukawa liquids are studied with molecular dynamics simulations. The "exact" thermodynamic properties are simultaneously employed in an advanced scheme for the…

软凝聚态物质 · 物理学 2021-06-15 F. Lucco Castello , P. Tolias
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