Question: A flow field is characterized by the stream function (psi=A x y), where (A=2 mathrm{~s}^{-1}) and the coordinates are measured in feet. Verify that the

A flow field is characterized by the stream function $\psi=A x y$, where $A=2 \mathrm{~s}^{-1}$ and the coordinates are measured in feet. Verify that the flow is irrotational and determine the velocity potential $\phi$. Plot the streamlines and potential lines and visually verify that they are orthogonal.

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