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Aerodynamics Practice Test: Velocity Potential Equation
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Velocity Potential Equation topics include: Irrotational flow, velocity potential equation, fluid rotation and velocity potential concepts.
 

Aerodynamics Practice Test: Velocity Potential Equation
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17 Questions

1. Which of these scenarios will lead to formation of vorticity?
2. According to Euler’s equation, what happens to the velocity of the inviscid flow if the pressure increases?
3. What is the nature of the flow having a velocity potential?
4. What is the value of angular velocity at a point on the solid surface outside the boundary layer where the velocity becomes equal to free stream velocity?
5. For an irrotational flow, what is the relation for the velocity potential?
6. If the velocity potential is given by ϕ = +2x2 – 4xy2 + \( \frac {8x^2}{y}\), then what is the value of velocity component in x – direction at point (2,1)?
7. Which of these equations represent vorticity?
8. Which of these conditions is not met at a point for irrotational flow?
9. What is a velocity potential?
10. Which of these equations is satisfied by the velocity potential equation?
11. According to d’Alember’s paradox, what happens when the flow over a body is irrotational?
12. What is the value of vorticity for a irrotational flow?
13. Vorticity is thrice as much as the angular velocity.
14. For an irrotational flow having velocity potential ϕ = 2x + 3z2 – 4y2 + 8x2, the flow field satisfies continuity equation.
15. If the Laplace equation is satisfied by the velocity potential, then the fluid flows.
16. What happens to the flow which passes through a curved shock wave?
17. The special form of Euler’s equation dp = – ρVdV is applicable for rotational flow.

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