混合粒子相场模型和在纳米粒子稀释悬浮中的重新规范的表面张力
Alexandra J Hardy1, Abdallah Daddi-Moussa-Ider1, Elsen Tjhung1
1School of Mathematics and Statistics, <a href="https://ror.org/05mzfcs16">The Open University</a>, Walton Hall, Milton Keynes MK7 6AA, United Kingdom.
Physical review. E
|November 20, 2024
概括
我们开发了模型来模拟流体接口附近的体粒子. 粒子相互作用显著改变表面张力,随着粒子度的增加而降低.
科学领域:
- 物理 物理学 物理
- 流体动力学 流体动力学
- 体科学 体科学 体科学
背景情况:
- 流体接口附近的体颗粒在许多自然和工业过程中至关重要.
- 了解它们的行为需要准确的模拟模型.
研究的目的:
- 开发和验证模拟稀释合体沉积和在流体接口附近漂浮的模型.
- 研究粒子动力学对界面性质的影响.
主要方法:
- 采用了双相场模型和混合粒子相场模型.
- 不压缩的斯托克斯方程用福里埃变换数量解决.
- 使用扰动方法对接口配置文件的分析解决方案.
主要成果:
- 模型显示分析和数值模拟之间有很好的一致性.
- 观察到粒子动力学和界面之间存在强烈的合.
- 表面张力受到粒子存在的显著改变.
结论:
- 开发的模型准确地捕捉了在接口附近的体行为.
- 颗粒度和浮力质量单调地减少重新规范的表面张力.
- 这项工作为由体相互作用驱动的界面现象提供了洞察力.
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