• 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 >Heat transfer characteristics and pressure variation in a nanoscale evaporating meniscus
【24h】

Heat transfer characteristics and pressure variation in a nanoscale evaporating meniscus

机译：纳米级蒸发弯月面的传热特性和压力变化

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

A nanoscale evaporating meniscus is simulated in this work using molecular dynamics. The heat and mass transfer characteristics and pressure variation in the non-evaporating and interline regions are studied. Very high heat and evaporation flux rates of the order of 100 MW/m~2 and 1000 kg/m~2 s, respectively, are achieved. The disjoining pressure increased significantly after the formation of the non-evaporating film. High negative liquid pressure induced due to capillary and disjoining pressures are obtained. Cavitation cannot occur as the film thickness is smaller than the critical cavitation radius, and the meniscus can exist in metastable state. A curve-fitted meniscus boundary condition is developed; a force function of the form F_n=An~(-3) - Cn~(-2) can be applied at the boundaries of a liquid film to create curvature and form a meniscus.
机译：在这项工作中使用分子动力学模拟了纳米级蒸发弯液面。研究了非蒸发区和夹层区的传热和传质特性以及压力变化。获得了非常高的热量和蒸发通量率，分别约为100 MW / m〜2和1000 kg / m〜2 s。在形成非蒸发膜之后，分离压力显着增加。获得了由于毛细管和分离压力引起的高负液压。因为膜厚度小于临界气穴半径，所以不会发生气穴现象，并且弯月面可能以亚稳态存在。建立了曲线拟合的弯月面边界条件；形式为F_n = An〜（-3）-Cn〜（-2）的力函数可以施加在液膜的边界处以产生曲率并形成弯月面。

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