Show that the ?ow represented by f ¼ 10r cos y þ 40 ln r m2=s is an incompressible ?ow. Also,
(a) Find the stream function c.
(b) Find the pressure along the negative x-axis if water is ?owing and p ¼ 100 kPa at x ¼ -1.
(c) Find the acceleration at rectangular coordinates (22, 0).
(d) Locate any stagnation points.