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High Throughput Analysis of Liquid Droplet Impacts
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影响滴滴在不同浸透性表面边缘的动态行为
Lei Xing1,2,3, Shuai Guan1, Minghu Jiang1,2
1School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, Heilongjiang, China.
Langmuir : the ACS journal of surfaces and colloids
|September 25, 2024
概括
研究了不同湿度的表面上的滴滴撞击和断裂. 确定了不同断裂类型的关键韦伯数,显示了较高接触角的断裂阻力增加.
科学领域:
- 流体动力学 流体动力学
- 表面科学是一门学科.
- 材料科学 材料科学 材料科学
背景情况:
- 在许多工程应用中,水滴在表面的行为至关重要.
- 了解滴滴剪切和分手动态是复杂的.
- 表面湿度显著影响流体结构相互作用.
研究的目的:
- 为了研究撞击水滴在表面边缘的形态演变.
- 为了确定韦伯数和接触角度对滴滴破裂的影响.
- 开发一个滴滴传播的预测模型.
主要方法:
- 使用高速摄影观察滴滴的行为.
- 用不同的韦伯数和接触角度进行了实验.
- 分析了形态进化类型 (未断裂,拉力断裂,剪切断裂).
主要成果:
- 观察到三种不同的滴滴形态进化类型.
- 接触角度和韦伯数被确定为影响分手的关键因素.
- 对不同分手类型的关键韦伯数量化确定.
- 接触角的增加导致分手的临界韦伯数更高.
- 在剪切裂变中,剩余滴滴质量比率始终为50%.
结论:
- 滴滴破裂高度依赖于韦伯数和表面湿透性.
- 开发了一种可靠的预测模型,用于在侧墙上传播滴滴.
- 这项研究为工程应用提供了对滴滴破裂动力学的见解.
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