• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>The 2001 ASME International Mechanical Engineering Congress and Exposition, 2001, Nov 11-16, 2001, New York, New York >MOLECULAR DYNAMICS SIMULATION AND MEASUREMENT OF CONTACT ANGLE OF WATER DROPLET ON A PLATINUM SURFACE
【24h】

MOLECULAR DYNAMICS SIMULATION AND MEASUREMENT OF CONTACT ANGLE OF WATER DROPLET ON A PLATINUM SURFACE

机译：铂表面上水珠接触角的分子动力学模拟和测量

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 water liquid droplet in contact with a platinum surface was simulated by the molecular dynamics method. Water molecules were modeled by SPC/E and one layer of harmonic molecules represented the platinum surface with the constant temperature heat bath model using the phantom molecules. Here, the water-platinum pair potential developed by Spohr (1989) based on extended Hueckel calculations was employed. In the spreading process of the liquid droplet on the platinum surface, the area of contact region between water and platinum expanded just in proportional to the one-third power of time. This spreading rate was clearly in contrast to the case of Lennard-Jones droplet. The contact angles of water on a platinum surface under saturated conditions are measured. The measurements are made in a vacuum container using de-ionized and degassed water on a clean platinum surface. The equilibrium static, advancing and receding contact angles are measured by changing the orientation of the platinum surface. The droplets of different masses are placed on the horizontal platinum surface. The surface is the inclined to 20, 30 and 40 degrees. The advancing and receding contact angles under these conditions are measured.
机译：通过分子动力学方法模拟了与铂表面接触的水滴。通过SPC / E对水分子进行建模，并使用幻象分子通过恒温热浴模型对一层谐波分子表示铂表面。在这里，使用了由Spohr（1989）根据扩展的Hueckel计算方法开发的水-铂对势。在液滴在铂表面上的扩散过程中，水和铂之间的接触区域的面积正好与时间的三分之一成正比。显然，该扩散速率与Lennard-Jones液滴的情况相反。测量了在饱和条件下水在铂表面上的接触角。测量是在真空容器中的干净铂表面上使用去离子和脱气水进行的。通过改变铂表面的取向来测量平衡的静态，前进和后退接触角。将不同质量的液滴放在水平铂表面上。表面倾斜到20、30和40度。测量在这些条件下的前进和后退接触角。

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