The rapid (< 0.5 sec) decrease in pressures that are observed as water moves past the hydropower turbine blade. This can result in barotrauma for fish passing through the turbine environment.
Below are a list of key terms and definitions related to the HydroPASSAGE project.
The amount of rotation that a spinning object undergoes per unit time. The Sensor Fish records rotational velocity as it passes through the hydropower turbine environment to indicate where live fish may be encountering turbulence. Measured in radians/second (sec-1)