turbulenceteam | Evolution of active vortex crystal superstructures @turbulenceteamms | Uploaded 4 years ago | Updated 3 hours ago
Active fluids such as dense suspensions of bacteria or sperm cells show a variety of phases ranging from disordered turbulence-like states to well-ordered vortex arrays. Continuum theories for active fluids, which belong to the class of Toner-Tu models, can be used to study such phases as well as transitions between them.
This video shows self-organized domains of active vortex crystals (AVCs) obtained from simulations of such an active fluid model. The AVC domains are separated by an interfacial layer of active turbulence. The inset shows a zoom-in into this turbulent interfacial area. The simulations are conducted on a 1000π x 1000π domain with 8192 x 8192 grid points using a GPU parallelized code.
See https://arxiv.org/abs/2005.06217.
Active fluids such as dense suspensions of bacteria or sperm cells show a variety of phases ranging from disordered turbulence-like states to well-ordered vortex arrays. Continuum theories for active fluids, which belong to the class of Toner-Tu models, can be used to study such phases as well as transitions between them.
This video shows self-organized domains of active vortex crystals (AVCs) obtained from simulations of such an active fluid model. The AVC domains are separated by an interfacial layer of active turbulence. The inset shows a zoom-in into this turbulent interfacial area. The simulations are conducted on a 1000π x 1000π domain with 8192 x 8192 grid points using a GPU parallelized code.
See https://arxiv.org/abs/2005.06217.
