An incompressible flow in cylindrical coordinates is given by:
u_r = Kcos(theta)(1-(b/(r^2))) u_(theta) = -Ksin(theta)(1+(b/(r^2))), u_z = 0
a) Does this field satisfy continuity?
b) For consistency, what should the dimensions of the constants K and b be?
c) Sketch the surface where u_r = 0 and interpret this flow field