2020/01/31 by Stuart J. Thomson, Stuart Thomson, Miles M. P. Couchman +1 · 27 citations
Engineering · Mathematics · Physics and Astronomy · #Acoustics #Classical mechanics #Collective behavior #Dissipative system #Fluid Dynamics and Heat Transfer #Inertial frame of reference #Instability #Lattice (music) #Levitation #Mechanics #Micro and Nano Robotics #Microfluidic and Bio-sensing Technologies #Physics #Quantum mechanics #Traveling wave #Vibration #cond-mat.soft #math.DS #nlin.PS
paper · pdf · doi:10.1103/physrevfluids.5.083601
published in Physical Review Fluids 5(8) (American Physical Society) · 15 pages (incl. references) and 4 figures
arxiv created 2020/06/05 · openalex publication_date 2020/08/03 · arxiv updated 2020/10/27 · openalex created_date 2020/11/23 · openalex updated_date 2026/08/06
Experiments are performed exploring the dynamics and stability of quasi-one-dimensional lattices of self-propelled millimetric droplets bouncing on a vertically vibrating liquid bath and confined to an annular ring. Depending on the droplet spacing, instability of the lattice may take the form of either out-of-phase oscillations or a striking solitarylike wave. Our results offer a new macroscopic platform to study collective phenomena and emergent structures in the burgeoning field of active and driven matter.