Extensive measurements of wall shear stress and local velocity for turbulent airflow on the flat surface of the University of Rhode Island wind tunnel have led to the following proposed correlation:
Thus, if y and u(y) are known at a point in a flat-plate boundary layer, the wall shear may be computed directly. If the answer to part (c) of Prob. 7.43 is u ≈ 27 m/s, determine whether the correlation is accurate for this case.