在高数密度的流中对四向合粒子进行高效的基于点的模拟
Xander M de Wit1, Rudie P J Kunnen1, Herman J H Clercx1
1Fluids and Flows group and J.M. Burgers Center for Fluid Mechanics, Department of Applied Physics and Science Education, <a href="https://ror.org/02c2kyt77">Eindhoven University of Technology</a>, 5600 MB Eindhoven, Netherlands.
Physical review. E
|August 20, 2024
概括
这项研究引入了一种有效的模拟方法,用于流中的四向合粒子. 它准确地模拟了粒子-流体相互作用和粒子-粒子碰撞,即使在高密度下也是如此.
科学领域:
- 流体动力学 流体动力学
- 计算物理 计算物理
- 多相流程 多相流程
背景情况:
- 带有分散粒子的流在自然界和工业中很常见.
- 这些多相系统的精确数值建模是计算要求很高的.
- 现有的模型经常与高颗粒密度和复杂相互作用作斗争.
研究的目的:
- 开发一种高效的减少顺序建模方法来模拟流中的粒子.
- 为了研究具有高粒子密度的系统.
- 为了捕捉四向合,包括粒子-流体和粒子-粒子相互作用.
主要方法:
- 一种基于点的模拟方法,用于流中的粒子.
- 实施四向合,以考虑相和粒子之间的相互影响.
- 系统地处理粒子聚类在高旋转区域所带来的数值挑战.
主要成果:
- 开发的方法有效地模拟了流中的四向合粒子.
- 它准确地捕捉了粒子对流体和粒子间相互作用的反反应.
- 该方法成功处理非常轻的粒子/气泡和高颗粒密度.
结论:
- 这种高效的模拟技术可方便对流体流中的集体粒子效应进行全面研究.
- 它适用于与科尔摩戈罗夫尺度相对较小的粒子.
- 该方法为各种自然和工业应用的研究开辟了新的途径.
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