Below are a list of key terms and definitions related to the HydroPASSAGE project.

A | B | C | E | F | H | K | O | P | R | S | T | W

The rapid (< 0.5 sec) decrease in pressures that are observed as water moves past the hydro turbine blade. This can result in barotrauma for fish passing through the turbine environment.

The amount of rotation that a spinning object undergoes per unit time. The Sensor Fish records rotational velocity as it passes through the hydro turbine environment to indicate where live fish may be encountering turbulence. Measured in radians/second (sec-1)