The stream function of a flow field is ψ ¼ Ax3þ Bðxy2 þ x2 y2Þ, where ψ, x, y, A, and B are all dimensionless. Find the relation between A and B for this to be an irrotational flow. Find the velocity...

The stream function of a flow field is ψ ¼ Ax3þ

Bðxy2 þ x2 y2Þ, where ψ, x, y, A, and B are all dimensionless. Find the relation between A and B for this to be an

irrotational flow. Find the velocity potential.