| Autor: |
Huang Yanlu, Huang Quandong |
| Jazyk: |
English<br />French |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
MATEC Web of Conferences, Vol 77, p 03005 (2016) |
| Druh dokumentu: |
article |
| ISSN: |
2261-236X |
| DOI: |
10.1051/matecconf/20167703005 |
| Popis: |
The viscosity is one of the important parameters which determine the characteristics of the fluid flow. In this paper, we employed three molecular dynamics methods so-called the periodic poiseuille flow method, the shear flow method and the stress autocorrelation method to calculate the viscosity of the Lennard-Jones fluid. We have found that, among the three, the periodic poiseuille flow method has the greatest convergent speed and the highest accuracy; the shear flow method with a small shear rate has the smallest convergent speed. The accuracy of the stress autocorrelation method evidently depends on the computational time. With 105 time-steps it is as accurate as the shear flow method, but with double time-steps it is more accurate than the shear flow method. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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