Flow-induced symmetry reduction in two-dimensional reaction-diffusion system
文献类型：期刊论文
| 作者 | Hu, Hai Xiang1; Li, Qian Shu2; Li, Xiao Chun1 |
| 刊名 | CHEMICAL PHYSICS
 |
| 出版日期 | 2009 |
| 卷号 | 358期号:1-2页码:21-24 |
| 关键词 | Reaction-diffusion-advection system Turing instability Symmetry reduction Absolute/convective instability |
| ISSN号 | 0301-0104 |
| DOI | 10.1016/j.chemphys.2008.11.026 |
| 英文摘要 | The influence of uniform flow on the pattern formation is investigated in a two-dimensional reaction-diffusion system. it is found that the convective flow plays a key role on pattern modulation. Both traveling and stationary periodic patterns are obtained. At moderate flow rates, the perfect hexagon, phase-shifted hexagon and stable square, which are essentially unstable in unperturbed reaction-diffusion systems, are obtained. These patterns move downstream. If the flow rate is increased further, the stationary flow-oriented stripes develop and compete with the spots. If the flow rate exceeds some critical value, the system is convectively unstable and the stationary stripes prevail against the traveling spots. The above patterns all have the same critical wavenumber associated with Turing bifurcation, which indicates that Turing instability produces the patterns while the flow induces the symmetry reduction, i.e., from six-fold symmetry to four-fold one, and to two-fold one ultimately. (c) 2008 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000265005300004 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3201]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomechan & Geotech Engn; 2.Beijing Inst Technol, Inst Chem Phys |
| 推荐引用方式 GB/T 7714 | Hu, Hai Xiang,Li, Qian Shu,Li, Xiao Chun. Flow-induced symmetry reduction in two-dimensional reaction-diffusion system[J]. CHEMICAL PHYSICS,2009,358(1-2):21-24. |
| APA | Hu, Hai Xiang,Li, Qian Shu,&Li, Xiao Chun.(2009).Flow-induced symmetry reduction in two-dimensional reaction-diffusion system.CHEMICAL PHYSICS,358(1-2),21-24. |
| MLA | Hu, Hai Xiang,et al."Flow-induced symmetry reduction in two-dimensional reaction-diffusion system".CHEMICAL PHYSICS 358.1-2(2009):21-24. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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