Question: An incompressible flow field is characterized by the stream function = 3 x 2 y - y 3 ( a ) Sketch a few streamlines

An incompressible flow field is characterized by the stream function
=3x2y-y3
(a) Sketch a few streamlines in the first quadrant. (b) Show that this flow field is
irrotational, and (c) derive the velocity potential function for the flow.
An incompressible flow field is characterized by

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