Question: the stream function of a two dimensional incompressible flow if given by the equation psi=x^2 +2y. a) what are the magnitude and direction of velocity

the stream function of a two dimensional incompressible flow if given by the equation psi=x^2 +2y. a) what are the magnitude and direction of velocity at point(2,3). b) at the point (2,3), what is the velocity component in the direction that makes an angle of 30 degree with the positive x axis

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