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3 cards from this section. Quick, good the night before a test.
What is Reynolds shear stress?
Think about how turbulence affects flow velocity.
What does turbulent kinetic energy represent?
Consider both mean and fluctuating velocities.
What does Reynolds shear stress measure?
Consider how turbulence affects movement.
The k-epsilon model is primarily focused on which aspect?
Remember what k and epsilon stand for.
Assuming a flow has a turbulent kinetic energy of 0.5 m²/s² and a dissipation rate of 0.1 m²/s³, calculate the eddy viscosity. What implications does the result have for modeling this flow?
Remember to identify and separate each variable in the formula.
Discuss how you would approach modeling a high Reynolds number flow using the k-epsilon model. What additional factors would you need to consider for computation?
Consider the dimensions of the simulation grid compared to the Kolmogorov scale.
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