Turbulent Channel Structures
Department of Mechanical and Aerospace Engineering
Turbulence is chaotic by definition, but previous work has shown that turbulent flow is organized into coherent structures. We use a method called Direct Lyapunov Exponent to identify these structures in a turbulent channel flow. The top image is a plane seen by looking down the channel, and the bottom image is a plane seen from looking from the side of the channel. Structures are outlined in black, and are more dominant near the walls, as expected.