Blasius Solution: Example Problems
Try to solve these problems before watching the solutions in the screencasts.
Example Problem 1
Consider the laminar flow of a fluid with a kinematic viscosity of 2.0 x 10-5 m2/s in parallel flow over a flat plate. Where along the plate is the boundary layer 5 mm thick? What is the velocity at that point? The freestream velocity, U, is 5 m/s.
Example Problem 2
Find the velocity at the edge of the boundary layer in terms of \(x\), given:
\[v = \frac{1}{2}\frac{\sqrt{u_{\infty}\gamma}}{x}\left( \eta \frac{df}{d\eta}\, -\, f \right)\]
\[\gamma = 8.6\,\, x\,\, 10^{-4}\,\, m^2/s\]
\[u_{\infty} = 2\,\, m/s\]