Fairushin, I.I. und Khrapak, Sergey und Mokshin, A. V. (2020) Direct evaluation of the physical characteristics of Yukawa fluids based on a simple approximation for the radial distribution function. Results in Physics, 19, Seite 103359. Elsevier. doi: 10.1016/j.rinp.2020.103359. ISSN 2211-3797.
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Offizielle URL: https://www.sciencedirect.com/science/article/pii/S221137972031826X
Kurzfassung
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.
elib-URL des Eintrags: | https://elib.dlr.de/136381/ | ||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
Titel: | Direct evaluation of the physical characteristics of Yukawa fluids based on a simple approximation for the radial distribution function | ||||||||||||||||
Autoren: |
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Datum: | 9 September 2020 | ||||||||||||||||
Erschienen in: | Results in Physics | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Ja | ||||||||||||||||
Gold Open Access: | Ja | ||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||
Band: | 19 | ||||||||||||||||
DOI: | 10.1016/j.rinp.2020.103359 | ||||||||||||||||
Seitenbereich: | Seite 103359 | ||||||||||||||||
Verlag: | Elsevier | ||||||||||||||||
ISSN: | 2211-3797 | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | Yukawa fluids, complex (dusty) plasma, thermodynamics of Yukawa fluids, collective excitations in Yukawa fluids | ||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||
HGF - Programmthema: | Forschung unter Weltraumbedingungen | ||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||
DLR - Forschungsgebiet: | R FR - Forschung unter Weltraumbedingungen | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Komplexe Plasmen / Theorie, Simulation (alt) | ||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||
Institute & Einrichtungen: | Institut für Materialphysik im Weltraum > Gruppe Komplexe Plasmen | ||||||||||||||||
Hinterlegt von: | Khrapak, Sergey | ||||||||||||||||
Hinterlegt am: | 06 Okt 2020 08:36 | ||||||||||||||||
Letzte Änderung: | 06 Okt 2020 08:36 |
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