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4 cards from this section. Quick, good the night before a test.
Define irrotational flow.
Think about what happens when fluids do not rotate.
What is vorticity?
Consider its relationship to fluid rotation.
What does a non-zero angular velocity indicate?
Consider the definitions of rotational and irrotational flows.
True or False: Irrotational flow has non-zero vorticity.
Recall what defines irrotational flow.
Given u = z + x² and v = -2y, derive the components of rotation about all axes.
Make sure to apply the definitions accurately.
If a flow field is defined by u = 3x - 5y, v = 8y + z, determine under which conditions it is irrotational.
Check the relationship between derivatives and irrotational flow.
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