在同质的同otropic 流中滴滴动态与沉浸的边界格子博尔兹曼法
Diego Taglienti1, Fabio Guglietta1, Mauro Sbragaglia1
1<a href="https://ror.org/025rrx658">Department of Physics & INFN</a>, <a href="https://ror.org/02p77k626">Tor Vergata University of Rome</a>, Via della Ricerca Scientifica 1, 00133 Rome, Italy.
Physical review. E
|August 20, 2024
概括
我们开发了一种新的数值方法,用格子博尔兹曼 (LB) 和沉浸边界 (IB) 方法模拟流中的滴滴动态. 这种方法准确地捕捉了复杂的流体环境中的大型滴滴变形.
科学领域:
- 流体动力学 流体动力学
- 计算物理学的计算物理.
- 多相流的流量是多相的.
背景情况:
- 在复杂的流中模拟滴滴行为对于理解各种科学和工程领域的现象至关重要.
- 现有的数值方法往往难以准确地捕捉动荡环境中的大型变形和相互作用.
研究的目的:
- 开发和验证一种新的数值方法,用于模拟时间依赖的速度梯度场中的滴滴动态.
- 为了能够在同质和同otropic 流中模拟小滴,考虑到它们的变形和方向.
主要方法:
- 流体模拟的格子博尔兹曼 (LB) 方法和滴水流体相互作用的沉浸边界 (IB) 方法的混合合.
- 整合了一种网状正规化技术,以处理显著的滴滴变形.
- 适应模拟比科尔摩戈罗夫尺度小的流中的滴滴动态的方法.
主要成果:
- 开发的数值方案成功地模拟了通用速度梯度下的滴滴动态.
- 该方法允许模拟经历大变形的滴.
- 获得了关于流中滴滴变形和方向的统计数据,并与理论模型进行了比较.
结论:
- 混合LB-IB方法与网状规范化提供了一个强大的框架来模拟滴滴动态.
- 这种方法对于研究流中的小滴是有效的,为它们的变形和方向提供了洞察力.
- 这些发现有助于更好地理解复杂的,时间依赖的环境中的多相流动力学.
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