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Title:
微重力条件下不同截面形状管中毛细流动的实验研究
Alternative Title: Experimental study on the capillary flow in tubes of different shapes under microgravity condition
Author: 徐升华; 周宏伟; 王彩霞; 王林伟; 孙祉伟
Source: 物理学报=Acta Physica Sinica
Issued Date: 2013-07-05
Volume: 62, Issue:13, Pages:134702/1-134702/6
Abstract: 利用落塔设施创造的短时间微重力条件, 研究了不同尺寸的正方形和三角形截面的毛细管中的流体在微重力条件下的流动行为, 并与圆形毛细管中的毛细流动进行了对比, 总结出了毛细管尺寸和截面形状对界面张力主导的毛细流动行为的影响规律. 结果显示, 对于同样形状的毛细管, 其尺寸对于毛细流动的影响规律基本相同; 而对于不同的截面形状, 方形管和三角形管都与截面积小得多的圆形管有一定的类似性. 相关结果对于深入理解不同条件下的界面张力主导的毛细流动特性, 以及在空间微重力条件下通过改变毛细管的形状来实现流速和流量的独立控制等方面都具有明显的现实意义.
English Abstract: In this paper, we study the capillary flows in square tubes and in equilateral triangle tubes under microgravity condition by performing experiments in drop tower, and also compare them with those in circular tubes. Experimental results showned the influence of both size and shape of tubes on the capillary flow driven by interfacial forces. For tubes of the same shape, the influence of tube size is quite similar. Moreover, the capillary flows in square tubes and equilateral triangle tubes have some similarity with those in circular tubes with much smaller sizes. The results are helpful for understanding the capillary flows driven by interfacial forces with different parameters. And they are also useful for independently controlling the flow velocity and the volume flow rate by choosing appropriate tube shapes under microgravity condition.
Keyword: 微重力 ; 毛细流动 ; 毛细管形状 ; microgravity ; capillary flow ; shapes of capillary tubes
Language: 中文
Indexed Type: SCI ; EI ; CSCD
Corresponding Author: 孙祉伟
Correspondent Email: sunzw@imech.ac.cn
DOI: 10.7498/aps.62.134702
Related URLs: 查看原文
DOC Type: Article
WOS Subject: Physics, Multidisciplinary
WOS Subject Extended: Physics
WOS Keyword Plus: VANE-WALL GAP ; PROPELLANT TANKS ; CONTACT-ANGLE ; FREE SURFACES ; DRIVEN FLOW ; GRAVITY ; LIQUID ; RISE ; SIMULATIONS ; DYNAMICS
WOS ID: WOS:000322566300049
ISSN: 1000-3290
Rank: 中国科学院微重力重点实验室, 中国科学院力学研究所, 北京100190
Subject: 流体力学::微重力流体力学
CSCD ID: CSCD:4888277
Department: NML复杂流体
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/47369
Appears in Collections:国家微重力实验室_期刊论文

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Recommended Citation:
徐升华,周宏伟,王彩霞,等. 微重力条件下不同截面形状管中毛细流动的实验研究[J]. 物理学报=Acta Physica Sinica,2013-07-05,62(13):134702/1-134702/6.
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