By analogy with laminar shear, 5 du/dy, T. V. Boussinesq in 1877 postulated that
Chapter 6, Problem p6.39(choose chapter or problem)
By analogy with laminar shear, 5 du/dy, T. V. Boussinesq in 1877 postulated that turbulent shear could also be related to the mean velocity gradient turb 5 du/dy, where is called the eddy viscosity and is much larger than . If the logarithmic overlap law, Eq. (6.28), is valid with turb < w, show that < u*y.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer