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3 cards from this section. Quick, good the night before a test.
Define boundary layer.
Look up the definition in the glossary.
What does shear stress indicate in fluid dynamics?
Think about the relationship with velocity gradients.
What is a boundary layer?
Remember the definition discussed in class.
True or False: Vorticity is irrelevant in boundary layer analysis.
Recall the role of vorticity in flow conditions.
A fluid with a Reynolds number of 50,000 is flowing over a flat plate. Determine whether the flow is laminar or turbulent, and explain your reasoning.
Refer to the critical values of Reynolds number.
Given a velocity field described by the equation u = U(1 - y^2/h^2), derive the expression for wall shear stress at the boundary y = h.
Remember to calculate the partial derivative with respect to y.
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