This image depicts a 2D cross section of turbulent flow created by shining a green laser into a glass cylinder to create a vertical plane. A fog machine was then used to blow thick fog into a black backdrop (To the right of this image) that is perpendicular to the vertical plane. This caused the fog to rise into this plane which created the turbulent effect captured as it travels to the left. This image also displays many vortices and chaotic behavior which are some of the most common characteristics of turbulence. The laser also highlights the density of the fog as the brighter regions are created by more light reflecting off fog particles.
The setup is show below with the fog machine behind my teammate Bradley Schumacher:
Credits: Bradley Schumacher and Qisheng Lei for setup