1.8 - Mixing length (lm)
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Practice Questions
Test your understanding with targeted questions
What is the definition of eddy viscosity?
💡 Hint: Think about how turbulence complicates a flow.
What does mixing length (lm) refer to?
💡 Hint: Consider what is needed for momentum exchange.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary role of mixing length in turbulent flow?
💡 Hint: Think about what allows fluid layers to interact effectively.
True or False: Eddy viscosity is a constant property of all fluids.
💡 Hint: Consider how turbulence changes in different scenarios.
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Challenge Problems
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Calculate the turbulent shear stress in a pipe if the average velocity gradient is 2 m/s², and the mixing length is determined to be 0.4 m.
💡 Hint: Focus on the relationship between shear stress, mixing length, and velocity gradient.
Explain how disturbances in velocity affect eddy viscosity and turbulent shear stress in an open channel flow.
💡 Hint: Think about how turbulence impacts flow behavior on a larger scale.
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