Question

The velocity potential $\varphi$ at any point for a two dimensional steady irrotational flow in polar coordinates, is given by (with usual notations)
$\varphi =\frac{m\cos \theta }{r}$
This equation represents a

• A. vortex
• B. sink
• C. source
• D. doublet

Answer 1

The correct option is D doublet

(d)