turbulenceteam | 3D Kolmogorov flow @turbulenceteamms | Uploaded 3 years ago | Updated 3 hours ago
Turbulent flows can be understood as the superposition of a mean flow, which evolves slowly and is shaped by boundaries or forcing mechanisms, and a multitude of chaotic, short-lived fluctuations.
This video shows the vorticity field of a three-dimensional Kolmogorov flow on an aspect-ratio-three domain, obtained from a pseudo-spectral simulation. Planes show out-of-plane vorticity averaged over the normal direction, and the vorticity magnitude is volume-rendered.
The flow exhibits a large-scale state consisting of two counter-rotating vortices, which themselves are the centers of small-scale activity, as illustrated by the volume rendering.
Please see https://arxiv.org/abs/2102.07675 for further details.
Turbulent flows can be understood as the superposition of a mean flow, which evolves slowly and is shaped by boundaries or forcing mechanisms, and a multitude of chaotic, short-lived fluctuations.
This video shows the vorticity field of a three-dimensional Kolmogorov flow on an aspect-ratio-three domain, obtained from a pseudo-spectral simulation. Planes show out-of-plane vorticity averaged over the normal direction, and the vorticity magnitude is volume-rendered.
The flow exhibits a large-scale state consisting of two counter-rotating vortices, which themselves are the centers of small-scale activity, as illustrated by the volume rendering.
Please see https://arxiv.org/abs/2102.07675 for further details.
