Brine Shrimp Reveal Geometry Can Reverse Turbulent Energy Flow
Researchers at the University of Pittsburgh have challenged a long-standing assumption in fluid dynamics by demonstrating that energy flow in two-dimensional turbulent systems can be reversed. By observing brine shrimp and using artificial rods in controlled water tanks, the team found that the orientation of an obstacle relative to the flow’s stretching direction dictates whether energy cascades from small to large scales or vice versa. This discovery suggests that simple geometric interventions can manipulate energy transfer in turbulent fluids, with potential applications in pollution control and drug design.
