Potential Flow Theory (Week 5 and 6)

Question 2

What is Vorticity and what happens if it’s zero?

Answer 2

Vorticity is the curl of the vector field

For zero vorticity, the flow is irrotational (fluid elements have no angular velocity, motion is pure translation)

Question 3

What are streamlines?

Answer 3

Line which is tangential to the local velocity vector everywhere along its length.