Influence of gravity on narrow input forced drainage in 2D liquid foams
文献类型：期刊论文
| 作者 | Sun QiCheng; Ge Wei; Huang Jin |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2007-02-01 |
| 卷号 | 52期号:3页码:423-427 |
| 关键词 | liquid foams forced drainage micro gravity soft condensed matter complex system |
| ISSN号 | 1001-6538 |
| 其他题名 | Chin. Sci. Bull. |
| 中文摘要 | Liquid foam is a dense packing of gas bubbles in a small amount of liquid containing surfactants or other surface-active macromolecules, which is one of the highly organized materials and possesses hallmark rheological behaviour of soft matters. Forced foam drainage is the flow of constantly inputted liquid through the network of interstitial channels between bubbles under actions of gravity and capillarity. This process involves two mechanisms: minimal viscous flow dissipation of liquid and minimal surface energy of bubbles. For constant surfactant solution, viscous dissipation usually varies with gravity. This work reports simulations of 2D forced foam drainage with narrow input in a Hele-Shaw cell under 8 different gravities, g, ranging from 9.8 to 0 ms(-2). The spread of liquid both vertical due to gravity action, and horizontal due to capillary suction, is recorded over time. Positions of drainage wave fronts in both directions with time are found to be well described in the power law form, and the exponents are 0.536+5.29 x 10(-3)g and 0.479-7.27 x 10(-3)g, respectively, while the sum is close to a constant of 1.015 which is independent of gravity. For g=9.8 ms(-2), the calculated exponents are in good agreement with experimental results by Hutzler et al. and Wang. |
| 英文摘要 | Liquid foam is a dense packing of gas bubbles in a small amount of liquid containing surfactants or other surface-active macromolecules, which is one of the highly organized materials and possesses hallmark rheological behaviour of soft matters. Forced foam drainage is the flow of constantly inputted liquid through the network of interstitial channels between bubbles under actions of gravity and capillarity. This process involves two mechanisms: minimal viscous flow dissipation of liquid and minimal surface energy of bubbles. For constant surfactant solution, viscous dissipation usually varies with gravity. This work reports simulations of 2D forced foam drainage with narrow input in a Hele-Shaw cell under 8 different gravities, g, ranging from 9.8 to 0 ms(-2). The spread of liquid both vertical due to gravity action, and horizontal due to capillary suction, is recorded over time. Positions of drainage wave fronts in both directions with time are found to be well described in the power law form, and the exponents are 0.536+5.29 x 10(-3)g and 0.479-7.27 x 10(-3)g, respectively, while the sum is close to a constant of 1.015 which is independent of gravity. For g=9.8 ms(-2), the calculated exponents are in good agreement with experimental results by Hutzler et al. and Wang. |
| WOS标题词 | Science & Technology |
| 类目[WOS] | Multidisciplinary Sciences |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 关键词[WOS] | DIMENSIONS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000245845900018 |
| 公开日期 | 2013-10-15 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3433]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun QiCheng,Ge Wei,Huang Jin. Influence of gravity on narrow input forced drainage in 2D liquid foams[J]. CHINESE SCIENCE BULLETIN,2007,52(3):423-427. |
| APA | Sun QiCheng,Ge Wei,&Huang Jin.(2007).Influence of gravity on narrow input forced drainage in 2D liquid foams.CHINESE SCIENCE BULLETIN,52(3),423-427. |
| MLA | Sun QiCheng,et al."Influence of gravity on narrow input forced drainage in 2D liquid foams".CHINESE SCIENCE BULLETIN 52.3(2007):423-427. |
入库方式： OAI收割
来源：过程工程研究所
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