Reynolds Equation and Mixing Length Model

Examples of Turbulent Boundary Layer Dimensions

For

,  ,  ,  .

For water and the corresponding boundary layer length scales are shown in the table.

Turbulent boundary layer length scales

	(m/s)	(mm)	Buffer Layer (mm)	Inner Layer (mm)	(mm)
1	0.043	0.023	0.69	4.6	23
5	0.215	0.047	0.138	0.92	4.6
10	0.43	0.0023	0.069	0.46	2.3

Note also that