期刊
PHYSICAL REVIEW FLUIDS
卷 1, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevFluids.1.081201
关键词
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资金
- Human Frontier Science Program Cross-Disciplinary Fellowship
- Wellcome Trust Senior Investigator Award
- EU ERC CoG Hydrosync
Eukaryotic cilia and flagella are chemo-mechanical oscillators capable of generating long-range coordinated motions known as metachronal waves. Pair synchronization is a fundamental requirement for these collective dynamics, but it is generally not sufficient for collective phase-locking, chiefly due to the effect of long-range interactions. Here we explore experimentally and numerically a minimal model for a ciliated surface: hydrodynamically coupled oscillators rotating above a no-slip plane. Increasing their distance from the wall profoundly affects the global dynamics, due to variations in hydrodynamic interaction range. The array undergoes a transition from a traveling wave to either a steady chevron pattern or one punctuated by periodic phase defects. Within the transition between these regimes the system displays behavior reminiscent of chimera states.
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