一个滴滴冲击单个纤维的分散行为
Bin Huang1, Sheng-Jie Feng2, Wei Zhang3
1Chongqing Institute of Unconventional Oil and Gas Development, Chongqing University of Science and Technology, Chongqing 401331, P. R. China.
Langmuir : the ACS journal of surfaces and colloids
|June 12, 2024
概括
这项研究以数值方式研究滴滴对纤维的影响,这对碳捕获技术至关重要. 速度和角度等优化的参数增强了滴滴分散,提高了质量转移效率.
科学领域:
- 流体动力学 流体动力学
- 化学工程是化学工程的重要组成部分.
- 质量转移是指质量转移.
背景情况:
- 高重力反应堆利用电网封装来提高碳捕获中的质量转移.
- 了解液滴-纤维相互作用是优化分散机制的关键.
研究的目的:
- 为了数值地研究单一纤维上的滴滴撞击动态.
- 分析撞击参数对滴滴变形和分散的影响.
主要方法:
- 使用流体体积 (VOF) 方法进行数值模拟.
- 系统地研究参数:初始速度,直径,偏心距离和撞击角度.
- 引入无维时间和气液界面面积增长率用于定量分析.
主要成果:
- 确定了不同的冲击阶段:分裂,合并,拉伸和断裂用于垂直冲击.
- 观察到异步断裂,滑动分裂和偏心冲击的斜阶段.
- 开发了气液界面面积最大增长率的相关性,误差为<15%.
结论:
- 优化滴滴撞击参数 (速度,直径,偏心距离,角度) 可以显著提高分散度.
- 变形机制涉及压力差和气体.
- 研究结果为改善碳捕获的高重力反应堆中的质量转移提供了洞察力.
相关概念视频
03:22Colloids
17.4K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
17.4K
01:17Colloids and Suspensions
1.8K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
1.8K