• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Heat and Mass Transfer >Technical Note Self-diffusion for Lennard-Jones fluid confined in a nanoscale space
【24h】

Technical Note Self-diffusion for Lennard-Jones fluid confined in a nanoscale space

机译：技术说明Lennard-Jones流体在纳米空间内的自扩散

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The self-diffusion model of Lennard-Jones fluid confined in a nanoscale space is developed by using equilibrium molecular dynamics simulation. The radial distribution function in free and confined space is evaluated and compared to analyze the fluid microstructure. The effects of the confined scale, strength of the fluid-solid coupling and commensurability of wall and fluid density on the fluid self-diffusion are investigated and discussed. The results indicate that the confined scale, fluid-solid coupling strength and commensurability of wall and fluid density play considerable role in the self-diffusion coefficient for the fluid confined in nanoscale space. Decrease in the confined scale lead to large portion of fluid molecules 'feel' the wall interaction, which results in the reduction of self-diffusion coefficient. In addition, the reduction of fluid self-diffusion coefficient in confined space is also demonstrated when the wall and fluid densities are incommensurate and wall-fluid coupling strength is large.
机译：利用平衡分子动力学模拟建立了纳纳-琼斯流体在纳米尺度空间内的自扩散模型。评估并比较了自由空间和受限空间中的径向分布函数，以分析流体的微观结构。研究并讨论了有限尺度，流固耦合强度以及壁的可比性和流体密度对流体自扩散的影响。结果表明，纳米尺度空间内流体的自扩散系数的局限性，流固耦合强度，壁的可比性和可比性起着重要作用。限制尺度的减小导致大部分流体分子“感觉”壁相互作用，这导致自扩散系数的减小。另外，当壁和流体密度不相称且壁-流体耦合强度大时，也证明了密闭空间中流体自扩散系数的减小。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号