Question

For steady hydro-dynamically fully developed, incompressible, laminar flow of newtonian fluids with constant properties through a circular pipe of radius r, the location where the shear stress is equal to one-half the wall shear stress the ratio of average velocity to maximum velocity is

Answer 1

Velocity profile in a fully developed pipe flou. R r z v (r)z vzmax z v z v φ φ v r. Figure 3.2: Hagen-Poiseullie flow through a pipe. The fully developed pipe flow is often