The velocity field for a line vortex in the r??-plane (Fig. P4–46) is given by ur = 0 u?? = K r where K is the line vortex strength. For the case with K = 1.5 m/s2 , plot a contour plot of velocity...

The velocity field for a line vortex in the r??-plane (Fig. P4–46) is given by ur = 0 u?? = K r where K is the line vortex strength. For the case with K = 1.5 m/s2 , plot a contour plot of velocity magnitude (speed). Specifically, draw curves of constant speed V = 0.5, 1.0, 1.5, 2.0, and 2.5 m/s. Be sure to label these speeds on your plot.