https://scholars.lib.ntu.edu.tw/handle/123456789/625238
標題: | Parallel molecular dynamics simulation of Head-on collision of two nanoscale droplets with low relative speed | 作者: | Juang R.-R Lee Y.-M Chiang C.-H Wu J.-S Hsu Y.L SHIU-WU CHAU |
關鍵字: | Head-on collision; Nanoscale droplets; Parallel md simulation | 公開日期: | 2009 | 卷: | 6 | 期: | 1 | 起(迄)頁: | 46-53 | 來源出版物: | Journal of Computational and Theoretical Nanoscience | 摘要: | Head-on collision of two equal-size nanoscale argon droplets with relative speed less than 10 m/s is investigated using a parallel cellular molecular dynamics code (PCMD). Previous studies showed that bouncing only occurred within a narrow range of head-on collision conditions, which was mainly attributed to the existence of background gas between the droplets. However, through simulations by thoroughly varying the head-on collision conditions, we have found that bouncing can easily occur as long as the relative speed is less than a critical value, which the magnitude strongly depends on the background gas pressure. This critical value of relative speed generally decreases with increasing background gas pressure. We attribute the bouncing between nanoscale droplets to the vaporizing atoms emitting from the head-on surfaces of the two droplets, which becomes the dominated factor under vacuum condition. Copyright © 2009 American Scientific Publishers doi:10.1166/jcm.2009.1005. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-67149146303&doi=10.1166%2fjctn.2009.1005&partnerID=40&md5=93ca29fbedb559ba833c49c9163ba7c6 https://scholars.lib.ntu.edu.tw/handle/123456789/625238 |
ISSN: | 15461955 | DOI: | 10.1166/jctn.2009.1005 | SDG/關鍵字: | Background gas; Critical value; Head-on collision; Nano scale; Nanoscale droplets; Parallel md simulation; Parallel molecular dynamics simulation; Vacuum condition; Argon; Codes (symbols); Dynamics; Molecular dynamics; Nanostructured materials; Speed; Drop formation |
顯示於: | 工程科學及海洋工程學系 |
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