Features of Turbulence

Example

For water flowing through a 50 mm diameter pipe at velocity of 1.8 m/s (Reynolds number ), the corresponding scales of turbulence are summarized in the table.

Table of eddy size and frequencies.

Eddies	Size	Frequency
Largest Eddies	25 mm	3.5 Hz
Energy Containing Eddies	0.6 mm	140 Hz
Most Dissipative Eddies	0.125 mm =125	450 Hz
Kolmogorov Eddies	0.025 mm =25	1300 Hz