Calculation of transport coefficients dispersion and a dynamic structure factor of simple liquid
The dynamic structure factor and the dispersion of transport coefficients are calculated for a simple liquid on the basis of the Fokker-Planck equation for a nonequilibrium distribution function of collective variables. The mode-coupling theory is used to obtain a closed chain of equations for wav...
Збережено в:
| Дата: | 1999 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
1999
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/119911 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Calculation of transport coefficients dispersion and a dynamic structure factor of simple liquid / V.V. Ignatyuk // Condensed Matter Physics. — 1999. — Т. 2, № 1(17). — С. 37-51. — Бібліогр.: 29 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The dynamic structure factor and the dispersion of transport coefficients
are calculated for a simple liquid on the basis of the Fokker-Planck equation for a nonequilibrium distribution function of collective variables. The
mode-coupling theory is used to obtain a closed chain of equations for
wave-vector-( k ) and frequency-( ω ) dependent transport coefficients. It is
shown that in the intermediate region of k the relations of nonlocal thermodynamics give more reliable results, while in the case of small wave-number values one could restrict oneself by local thermodynamics. An
analysis of the sound mode is performed and the coefficient at k⁵/² for
a sound frequency dispersion is calculated. The obtained results are compared with both the experimental data and computer simulation. |
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