| Autor: |
Hai-Bao Hu, Li-Bin Chen, Lu-Yao Bao, Su-He Huang |
| Předmět: |
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| Zdroj: |
Chinese Physics B; Jul2014, Vol. 23 Issue 7, p1-1, 1p |
| Abstrakt: |
Large-scale molecular dynamics simulations are used to study the dynamic processes of a nano-droplet impacting on hydrophobic surfaces at a microscopic level. Both the impact phenomena and the velocity distributions are recorded and analyzed. According to the simulation results, similar phenomena are obtained to those in macro-experiments. Impact velocity affects the spread process to a greater degree than at a level of contact angle when the velocity is relatively high. The velocity distribution along the X axis during spread is wave-like, either W- or M-shaped, and the velocity at each point is oscillatory; while the edges have the highest spread velocity and there are crests in the distribution curve which shift toward the edges over time. The distribution along the Y axis is <- or >-shaped, and the segments above the middle have the lowest decrease rate in the spreading process and the highest increase rate in the retraction process. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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