Chapter 1, Problem 1.9P

Consider two different flows over geometrically similar airfoil shapes, one airfoil being twice the size of the other. The flow over the smaller airfoil has freestream properties given by $T_{\infty }=200\text{K},{\rho }_{\infty }=1.23{\text{kg/m}}^{\text{3}}$, and $V_{\infty }=100\text{m/s}$. The flow over the larger airfoil is described by $T_{\infty }=800\text{K,}{\rho }_{\infty }=1.739{\text{kg/m}}^{\text{3}}$, and $V_{\infty }=200\text{m/s}$. Assume that both $\mu$ and a are proportional to $T^{1/2}$. Are the two flows dynamically similar?