Chapter 8, Problem 8.64P

Consider the polar-coordinate stream function $\sin \left(1.2\theta \right)$ , with B equal, for convenience, to 1.0 ft⁰.8/s. (a) Plot the streamline $\psi =0$ in the upper half plane. (b) Plot the streamline $\psi =1.0$ and interpret the flow pattern. (c) Find the locus of points above $\psi =0$ for which the resultant velocity = 1.2 ft/s.

$\psi =B{r}^{1.2}$