Diffusion in simple liquids based on molecular dynamics simulations | Izvestiya vuzov. Fizika. 2026. № 1. DOI: 10.17223/00213411/69/1/2

Diffusion in simple liquids based on molecular dynamics simulations

The temperature dependence of the self-diffusion coefficient in a Lennard-Jones liquid was studied. We previously demonstrated that the temperature dependence of the diffusion coefficient at constant density is linear. In turn, the coefficients of this dependence are linearly related to the liquid density. A study of the liquid density as a function of temperature shows that it decreases significantly with increasing temperature. Consequently, the strong temperature dependence of the self-diffusion coefficient in the liquid is related to the strong temperature dependence of density. The results of calculations are in good agreement with the experimental data on self-diffusion in liquid argon.

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Keywords

diffusion in liquids, molecular dynamics method, liquid argon

Authors

NameOrganizationE-mail
Kharlamov Georgii V.Siberian Transport Universitygv_kharlamov@mail.ru
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 Diffusion in simple liquids based on molecular dynamics simulations | Izvestiya vuzov. Fizika. 2026. № 1. DOI: 10.17223/00213411/69/1/2

Diffusion in simple liquids based on molecular dynamics simulations | Izvestiya vuzov. Fizika. 2026. № 1. DOI: 10.17223/00213411/69/1/2

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