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多个化气泡配置对崩行为和墙壁损坏的影响
Xiuli Wang1, Qianqian Mi1, Zhuohan Yang1
1Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, 212013, China.
Langmuir : the ACS journal of surfaces and colloids
|February 26, 2026
概括
了解墙壁附近的多个化气泡崩至关重要. 这项研究揭示了基于泡集群配置的崩动态和峰值压力的显著差异,推进了水力动力学化优化.
科学领域:
- 流体动力学和声学 流体动力学和声学
- 多相流现象 多相流现象
背景情况:
- 洞穴经常涉及表面附近的泡集群,使崩动态复杂化.
- 现有的单/双气泡研究不足以理解多个气泡的相互作用.
研究的目的:
- 在自由域和近壁配置中调查多个化气泡崩.
- 分析崩模式,系统压力和墙壁压力变化.
- 为了阐明多泡洞化中潜在的相互作用机制.
主要方法:
- 在数值模拟中使用粗粒度力场.
- 在自由领域和特定的近壁配置下 (II和III) 调查了泡崩.
- 系统地分析了崩模式和压力变化.
主要成果:
- 液压的峰值发生在0.92 ps (配置II) 和1.78 ps (配置III),差距几乎是两倍.
- 在配置II中,最大液体峰值压力是配置III的1.9倍.
- 配置II表现出最高的壁顶压力 (22.39 GPa),比配置I和III高1.12-1.14倍.
结论:
- 气泡集群配置显著影响崩动态和压力产生.
- 与自由域相比,近壁配置 (特别是II) 会导致扩大墙壁压力.
- 这些发现推进了化理论,并为优化工业水力动力学化过程提供了指导.
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