Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2003.10a
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- Pages.347-354
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- 2003
Fluid flow simulation in carbon nano tube using molecular dynamics
탄소나노튜브 내 유체유동의 분자동역학 모사
Abstract
The dynamics of fluid flow through nanomachines is completely different from that of continuum. In this study, molecular dynamics simulations were performed for the flow of helium, neon, argon inside carbon(graphite) nanotubes of several sizes. The fluid was introduced into the nanotube at a given initial velocity according to given temperature. Diffusion coefficients were evaluated by Green-Kubo equation derived from Einstein relationship. The behaviour of the fluid was strongly dependent on the density of fluid and tube diameter, not on the tube length. It was found that the diffusion Coefficients increased With decreasing the density of molecules and increasing the diameter and temperature.
Keywords
- molecular dynamics simulation;
- Nano;
- Helium;
- Neon;
- Argon;
- Carbon;
- Carbon Nano Tube;
- Lennard-Jones Potential;
- Ensemble;
- Green-Kubo equation;
- Diffusivity