Assume that the streamlines for the wingtip vortices from an airplane Fig. P4.15 can be approximated by circles of radius \(r\) and that the speed is \(V=K / r\), where \(K\) is a constant. Determine the streamline acceleration, \(a_{s}\), and the normal acceleration, \(a_{n}\), for this flow.

Fig. P4.15

Transcribed Image Text:

Inflow portion of control surface CS SA (a) SV=S, SA (b) (c)