P7.48 In 1957 H. Görtler proposed the adverse gradient test cases U=\frac{U_{0}}{(1+x / L)^{n}} and computed separation for laminar flow at n = 1 to beXsep/L = 0.159. Compare with

Thwaites's method, assuming 0, = 0. \frac{\delta}{x}=\frac{0.37}{\operatorname{Re}_{x}^{1 / 5}} \quad c_{f}=\frac{0.0577}{\operatorname{Re}_{x}^{1 / 5}} \quad C_{D}=\frac{0.072}{\operatorname{Re}_{L}^{1 / 5}}