Pramana | |
Perturbation approach for equation of state for hard-sphere and Lennard–Jones pure fluids | |
S B Khasare11  M S Deshpande1  | |
[1] 90, New Jagruti Colony, Katol Road, Nagpur 440 013, India$$ | |
关键词: Equation of state (EOS); LJ fluid; HS fluid; computer simulation.; | |
DOI : | |
学科分类:物理(综合) | |
来源: Indian Academy of Sciences | |
【 摘 要 】
In this paper we have established the equation of state (EOS) for liquids. The EOS was established for hard-sphere (HS) fluid along with Lennard–Jones (LJ) fluid incorporating perturbation techniques. The calculations are based on suitable axiomatic functional forms for surface tension $S_m (r )$, $r ≥ d/2$ with intermolecular separation ð‘Ÿ, as a variable, and ð‘š is an arbitrary real number (pole). The results for 𛽠ð‘ƒ/Ï from the present EOS thus obtained are compared with Percus-Yevick (PY), scaled particle theory (SPT), and Carnahan–Starling (CS). In addition, we have found a simple EOS for the HS fluid in the region which represents the simulation data accurately.It is observed that, this EOS for HS gives, PY (pressure) for ð‘š = 0, CS for ð‘š = 4/5, whereas for ð‘š = 1 it corresponds to SPT.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912040498288ZK.pdf | 158KB | download |