来自蒸发的液滴的体沉积物:用于预测最终沉积物形状的计算高效框架
Nathan C J Coombs1, Mykyta V Chubynsky2, James E Sprittles1
1University of Warwick, Mathematics Institute, Coventry CV4 7AL, United Kingdom.
Physical review. E
|February 7, 2025
概括
这项研究提出了一种蒸发带有颗粒的液滴的新模型,其中包含颗粒干扰,以准确预测沉积物. 该模型简化了模拟,使得可以直接与沉积地形上的实验结果进行比较.
科学领域:
- 流体动力学 流体动力学
- 材料科学是一种材料科学.
- 表面科学是一门科学.
背景情况:
- 在各种应用中,带有颗粒的液滴的蒸发至关重要.
- 以前的模型往往难以准确预测沉积物尺寸,原因是粒子阻塞等复杂现象.
- 了解滴水蒸发动态是控制沉积物形态的关键.
研究的目的:
- 开发一个全面的建模框架,用于完全蒸发带有颗粒的液滴.
- 为了将粒子阻塞作为从流体向导到多孔塞的关键过渡.
- 为了实现沉积物尺寸和地形的现实预测,促进与实验数据的比较.
主要方法:
- 开发了一个新的建模框架来模拟滴水蒸发,包括触摸事件.
- 粒子阻塞被整合到模型中,从自由向导过渡到不移动的多孔插头.
- 模拟方法避免了对被阻塞的粒子前线的明确跟踪,从而允许完全模拟阻塞.
主要成果:
- 该模型成功地通过计算粒子阻塞来预测沉积物尺寸.
- 模拟允许直接和有效地与干沉积物地形上的实验发现进行比较.
- 证明了该框架对一般接触线几何形状的适用性.
结论:
- 开发的建模框架为研究带有粒子的滴滴蒸发提供了一个强大的工具.
- 纳入粒子阻塞对于准确预测沉积物形态是必不可少的.
- 该模型的灵活性允许研究接触线几何效应对沉积物形状的影响.
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