Measuring Turbulence: Key Quantities Behind the Driving Parameter

This paper studies how turbulence in a simulated Milky Way–like galaxy evolves and influences star formation. By tracking the turbulence driving parameter b, the authors find that compressive turbulence (high b) tends to occur about 10 Myr before increases in star formation, while supernova feedback later boosts turbulence and reduces b. Overall, turbulence cycles between compressive and mixed modes, tightly linked to the timing of star formation events.