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Modeling and simulations of drop pinch-off from liquid crystal filaments and the leaky liquid crystal faucet immersed in viscous fluids
文献类型：期刊论文
| 作者 | Yang, Xiaofeng ; Forest, M. Gregory ; Li, Huiyuan ; Liu, Chun ; Shen, Jie ; Wang, Qi ; Chen, Falai |
| 刊名 | JOURNAL OF COMPUTATIONAL PHYSICS
 |
| 出版日期 | 2013 |
| 卷号 | 236页码:1-14 |
| 关键词 | Phase field model Drop pinch-off Liquid crystal filament |
| ISSN号 | 0021-9991 |
| 中文摘要 | An energy-based, phase field model is developed for the coupling of two incompressible, immiscible complex fluid phases, in particular a nematic liquid crystal phase in a viscous fluid phase. The model consists of a system of coupled nonlinear partial differential equations for conservation of mass and momentum, phase transport, and interfacial boundary conditions. An efficient and easy-to-implement numerical scheme is developed and implemented to extend two benchmark fluid mechanical problems to incorporate a liquid crystal phase: filament breakup under the influence of capillary force and the gravity-driven, dripping faucet. We explore how the distortional elasticity and nematic anchoring at the liquid crystal-air interface modify the capillary instability in both problems. For sufficiently weak distortional elasticity, the effects are perturbative of viscous fluid experiments and simulations. However, above a Frank elasticity threshold, the model predicts a transition to the beads-on-a-string phenomenon associated with polymeric fluid filaments. Published by Elsevier Inc. |
| 英文摘要 | An energy-based, phase field model is developed for the coupling of two incompressible, immiscible complex fluid phases, in particular a nematic liquid crystal phase in a viscous fluid phase. The model consists of a system of coupled nonlinear partial differential equations for conservation of mass and momentum, phase transport, and interfacial boundary conditions. An efficient and easy-to-implement numerical scheme is developed and implemented to extend two benchmark fluid mechanical problems to incorporate a liquid crystal phase: filament breakup under the influence of capillary force and the gravity-driven, dripping faucet. We explore how the distortional elasticity and nematic anchoring at the liquid crystal-air interface modify the capillary instability in both problems. For sufficiently weak distortional elasticity, the effects are perturbative of viscous fluid experiments and simulations. However, above a Frank elasticity threshold, the model predicts a transition to the beads-on-a-string phenomenon associated with polymeric fluid filaments. Published by Elsevier Inc. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000314801500002 |
| 公开日期 | 2014-12-16 |
| 源URL | [http://ir.iscas.ac.cn/handle/311060/16944]  |
| 专题 | 软件研究所_软件所图书馆_期刊论文 |
| 推荐引用方式 GB/T 7714 | Yang, Xiaofeng,Forest, M. Gregory,Li, Huiyuan,et al. Modeling and simulations of drop pinch-off from liquid crystal filaments and the leaky liquid crystal faucet immersed in viscous fluids[J]. JOURNAL OF COMPUTATIONAL PHYSICS,2013,236:1-14. |
| APA | Yang, Xiaofeng.,Forest, M. Gregory.,Li, Huiyuan.,Liu, Chun.,Shen, Jie.,...&Chen, Falai.(2013).Modeling and simulations of drop pinch-off from liquid crystal filaments and the leaky liquid crystal faucet immersed in viscous fluids.JOURNAL OF COMPUTATIONAL PHYSICS,236,1-14. |
| MLA | Yang, Xiaofeng,et al."Modeling and simulations of drop pinch-off from liquid crystal filaments and the leaky liquid crystal faucet immersed in viscous fluids".JOURNAL OF COMPUTATIONAL PHYSICS 236(2013):1-14. |
入库方式： OAI收割
来源：软件研究所
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