engineering recuitment UKPSC Polytechnic Lecturer Mock Test 2024 Fluid Mechanics Fluid Kinematics Potential Function
The velocity potential function is given by an expression \(\phi = - \frac{{x{y^3}}}{3} - {x^2} + \frac{{{x^3}y}}{3} + {y^2}\). The velocity in the X-direction is given by:
1
\(x{y^2} - \frac{{{x^3}}}{3} - 2y\)
2
\(\frac{{{y^3}}}{3} + 2x - {x^2}y\)
3
3x2y + 2x – xy2
4
x3y2 + 2x2 – y2x