Asymmetric Complex Plasma Pressure and Isothermal Compressibility with Regard to Nonlinear Screening in the Average Wigner–Seitz Cell Model

IF 1 4区物理与天体物理 Q4 PHYSICS, APPLIED

High Temperature Pub Date : 2024-03-22 DOI:10.1134/s0018151x23060032

I. A. Martynova, I. L. Iosilevskiy

引用次数: 0

Abstract

The study considers a two-component electroneutral equilibrium complex plasma of finite-sized macroions with charges Z (Z \( \gg \) 1) and point oppositely charged microions with unit charges. System pressure was calculated in the Poisson–Boltzmann approximation with regard to nonlinear screening of macroions by microions in the average Wigner–Seitz cell model. One of the calculation methods obtains pressure by calculating the nonideal part of the Helmholtz free energy; the second is specific to the Wigner–Seitz average cell model. It is shown that the pressure and isothermal compressibility of the plasma are positive over the entire range of macroion concentrations.

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关于平均维格纳-塞茨电池模型中非线性筛选的不对称复合等离子体压力和等温压缩性

摘要该研究考虑了由带电荷Z的有限大小的大离子（Z \( \gg \) 1）和带单位电荷的点对置电荷微离子组成的双组分电中性平衡复合等离子体。在泊松-玻尔兹曼近似中计算了系统压力，考虑到在平均维格纳-塞茨晶胞模型中大离子对微子的非线性屏蔽。其中一种计算方法是通过计算亥姆霍兹自由能的非理想部分来获得压力；第二种方法是专门针对维格纳-塞茨平均晶胞模型的。结果表明，在整个大离子浓度范围内，等离子体的压力和等温可压缩性均为正值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Temperature 物理-物理：应用

CiteScore

1.50

自引率

40.00%

发文量

审稿时长

4-8 weeks

期刊介绍： High Temperature is an international peer reviewed journal that publishes original papers and reviews written by theoretical and experimental researchers. The journal deals with properties and processes in low-temperature plasma; thermophysical properties of substances including pure materials, mixtures and alloys; the properties in the vicinity of the critical point, equations of state; phase equilibrium; heat and mass transfer phenomena, in particular, by forced and free convections; processes of boiling and condensation, radiation, and complex heat transfer; experimental methods and apparatuses; high-temperature facilities for power engineering applications, etc. The journal reflects the current trends in thermophysical research. It presents the results of present-day experimental and theoretical studies in the processes of complex heat transfer, thermal, gas dynamic processes, and processes of heat and mass transfer, as well as the latest advances in the theoretical description of the properties of high-temperature media.