| Bond数变化对固壁液滴接触角的影响 | |
| Alternative Title | Influence of Bond Number on the Contact Angle of Liquid Drops Deposited on Solid Substrates |
朱志强 ; 汪洋; 刘秋生
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| Source Publication | 工程热物理学报
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| 2012-02-15 | |
| Volume | 33Issue:2Pages:251-254 |
| ISSN | 0253-231X |
| Abstract | 本文利用微重力落塔实验研究了Bond数改变时,PTFE和铝板表面上正滴和倒滴接触角的动态变化。实验发现液滴接触角与Bond数的大小有关,当Bond数趋于0时,还与其放置状态有关。本文采用VOF方法对Bond数变化引起的液滴形状及内部流动变化进行二维数值模拟,结果显示液滴内部的流动控制着液滴的外形和接触角。 |
| Other Abstract | The behaviors of liquid drops in microgravity have been experimentally performed in Beijing 3.6 s Drop Tower. Contact angle dynamic behaviors of sessile and pendant liquid drops on PTFE and Aluminum were measured and analyzed for varying Bond number. It was found that Bond number had direct influence on the drop contact angle. And the drops with different status (sessile or pendant) also exhibited dissimilar contact angle behaviors when Bond number closed to zero. For comparison, the VOF methodology was introduced to analyze numerically the influence of Bond number on the shapes and inner bulk flow fields of liquid drops. It indicated that the bulk flow could influence the shape and contact angle of drops evidently. |
| Keyword | 液滴 Bond数 接触角 微重力 |
| Subject Area | 微重力流体力学 |
| URL | 查看原文 |
| Indexed By | CSCD ; EI |
| Language | 中文 |
| Funding Organization | 国家自然科学基金资助项目(No.11072249;No.50890182); 中国科学院国防科技创新基金项目(No.CXtJJ-10-M55) |
| CSCD ID | CSCD:4442297 |
| Department | NML流动稳定性与复杂流动 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46428 |
| Collection | 国家微重力实验室 |
| Corresponding Author | 朱志强 |
| Recommended Citation GB/T 7714 | 朱志强,汪洋,刘秋生. Bond数变化对固壁液滴接触角的影响[J]. 工程热物理学报,2012,33(2):251-254. |
| APA | 朱志强,汪洋,&刘秋生.(2012).Bond数变化对固壁液滴接触角的影响.工程热物理学报,33(2),251-254. |
| MLA | 朱志强,et al."Bond数变化对固壁液滴接触角的影响".工程热物理学报 33.2(2012):251-254. |
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