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4 cards from this section. Quick, good the night before a test.
Define Reynolds shear stress.
Think about how turbulent flows differ from laminar flows.
What does the closure problem entail?
Consider why we need to resolve unknowns in fluid dynamics.
What does Reynolds shear stress measure?
Consider what happens during turbulence vs. laminar flow.
True or False: The closure problem requires the use of turbulence models in CFD.
Think about why turbulence complicates fluid dynamics.
Design a simple experiment using the k-epsilon model to analyze how changes in fluid velocity affect turbulence levels in a pipe flow.
Focus on varying the flow rates and observing changes.
Implement direct numerical simulation for a complex flow scenario (such as wind pattern around a building) and identify the computational costs involved.
Consider the Reynolds number and Kolmogorov scales for effective simulation.
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