Kinematics of spiral waves under feedback-related spatial gradients
文献类型：期刊论文
| 作者 | Wu, Ningjie1; Gao, Hongjun1; Ying, Heping2,3 |
| 刊名 | PHYSICAL REVIEW E
 |
| 出版日期 | 2010-12-13 |
| 卷号 | 82页码:6 |
| ISSN号 | 1539-3755 |
| DOI | 10.1103/PhysRevE.82.066206 |
| 英文摘要 | The kinematics of spiral waves with artificially constructed spatial excitability is numerically investigated in the Oregonator model. On an assumption that the rotation center of spiral's tip drifts at angle delta to the direction of a local gradient, a kinematic formula of motion of spiral's tip is derived. To test the formula, we have presented two forms of feedback-related spatial fields with radial gradients (RGs) and concentric circular gradients (CGs) both centering on a reference point. It is found that both rigidly rotating and meandering spiral waves are attracted to the reference point of an inward RG and a clockwise CG perturbation but moved away from it under an outward RG and a counterclockwise CG. Simulations of the drift-velocity formulas provide a quantitative testing of the numerical results. |
| WOS关键词 | ROTATING SPIRALS ; DYNAMICS ; MEDIA |
| 资助项目 | National Nature Science Foundation of China[10774130] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000286745700002 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | National Nature Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/33136]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Wu, Ningjie |
| 作者单位 | 1.Nanjing Normal Univ, Sch Math Sci, Nanjing 210046, Peoples R China 2.Zhejiang Univ, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China 3.Zhejiang Univ, Inst Modern Phys, Hangzhou 310027, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Ningjie,Gao, Hongjun,Ying, Heping. Kinematics of spiral waves under feedback-related spatial gradients[J]. PHYSICAL REVIEW E,2010,82:6. |
| APA | Wu, Ningjie,Gao, Hongjun,&Ying, Heping.(2010).Kinematics of spiral waves under feedback-related spatial gradients.PHYSICAL REVIEW E,82,6. |
| MLA | Wu, Ningjie,et al."Kinematics of spiral waves under feedback-related spatial gradients".PHYSICAL REVIEW E 82(2010):6. |
入库方式： OAI收割
来源：近代物理研究所
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