KFU. Card publication. Direct evaluation of the physical characteristics of Yukawa fluids based on a simple approximation for the radial distribution function

- RUS
- 中文
- ES

DIRECT EVALUATION OF THE PHYSICAL CHARACTERISTICS OF YUKAWA FLUIDS BASED ON A SIMPLE APPROXIMATION FOR THE RADIAL DISTRIBUTION FUNCTION

Form of presentation

Articles in international journals and collections

Year of publication

2020

��

��

Authors, employees of KFU

Mokshin Anatoliy Vasilevich, author

Fayrushin Ilnaz Izailovich, author

Other authors

Khrapak Sergey Alekseevich, author

Bibliographic description in the original language

Fairushin I.I. Direct evaluation of the physical characteristics of Yukawa fluids based on a simple approximation for the radial distribution function / I. I. Fairushin, S. A. Khrapak, A. V. Mokshin // Results in Physics. - 2020. Vol. 19, P. 103359-1 -- 103359-5.

Annotation

We propose a simple analytical approximation for the radial distribution function (RDF) in a single-component Yukawa fluid. The proposed RDF depends on the two input parameters: the non-ideality parameter � and the structure (screening) parameter �, which determine the thermodynamic state of Yukawa systems. We demonstrate that various physical properties can be directly calculated using the proposed RDF. In particular, the internal energy and pressure, the excess entropy in the pair approximation, and the dispersion relation of longitudinal acoustic-like collective excitations are calculated. These theoretical results are compared with the results from molecular dynamics simulations and good overall agreement is observed in the investigated regime of screening and coupling parameters.

Keywords

Yukawa fluid, radial distribution function, two-step approximation, thermodynamic properties, dispersion law of the longitudinal collective mode.

The name of the journal

Results in Physics

URL

https://doi.org/10.1016/j.rinp.2020.103359

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=237333&p_lang=2

Resource files

File name	Size (MB)	Format
1_s2.0_S221137972031826X_main.pdf	1,70	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Mokshin Anatoliy Vasilevich	ru_RU
dc.contributor.author	Fayrushin Ilnaz Izailovich	ru_RU
dc.contributor.author	Khrapak Sergey Alekseevich	ru_RU
dc.date.accessioned	2020-01-01T00:00:00Z	ru_RU
dc.date.available	2020-01-01T00:00:00Z	ru_RU
dc.date.issued	2020	ru_RU
dc.identifier.citation	Fairushin I.I. Direct evaluation of the physical characteristics of Yukawa fluids based on a simple approximation for the radial distribution function / I. I. Fairushin, S. A. Khrapak, A. V. Mokshin // Results in Physics. - 2020. Vol. 19, P. 103359-1 -- 103359-5.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=237333&p_lang=2	ru_RU
dc.description.abstract	Results in Physics	ru_RU
dc.description.abstract	We propose a simple analytical approximation for the radial distribution function (RDF) in a single-component Yukawa fluid. The proposed RDF depends on the two input parameters: the non-ideality parameter � and the structure (screening) parameter �, which determine the thermodynamic state of Yukawa systems. We demonstrate that various physical properties can be directly calculated using the proposed RDF. In particular, the internal energy and pressure, the excess entropy in the pair approximation, and the dispersion relation of longitudinal acoustic-like collective excitations are calculated. These theoretical results are compared with the results from molecular dynamics simulations and good overall agreement is observed in the investigated regime of screening and coupling parameters.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Yukawa fluid	ru_RU
dc.subject	radial distribution function	ru_RU
dc.subject	two-step approximation	ru_RU
dc.subject	thermodynamic properties	ru_RU
dc.subject	dispersion law of the longitudinal collective mode.	ru_RU
dc.title	Direct evaluation of the physical characteristics of Yukawa fluids based on a simple approximation for the radial distribution function	ru_RU
dc.type	Articles in international journals and collections	ru_RU