Practice Integration With Boundary Conditions (1.3) - Introduction to Turbulent Flow

Practice: Integration with Boundary Conditions

Lesson 1.3Introduction to Turbulent Flow

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10 questions

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6 sample questions

Question 1.
What equation defines shear stress in a turbulent flow?
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Identify the relationship between shear stress and friction velocity.
Question 2.
What is the value of u* if τ₀ = 153.6 N/m² and ρ = 1000 kg/m³?
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Remember to apply the square root function.
3Question 3.
What is the relationship between shear stress, velocity, and density in turbulent flow?
- τ = ρu²
- τ = ρu*²
- τ = ρu/2
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Think about how density influences shear stress in fluid flow.
4Question 4.
True or False: The logarithmic velocity profile can only be derived for laminar flows.
- True
- False
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Recall the characteristics of laminar versus turbulent profiles.
Question 5.
A fluid with a shear stress of 200 N/m² and density of 800 kg/m³ flows through a pipe. Determine u*, the friction velocity, and classify if the boundary is smooth or rough if k is given as 5 mm.
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Ensure to check the kinematic viscosity beforehand.
Question 6.
In a turbulent flow within a circular pipe, if the radius is halved, how does this affect τ and u_max assuming constant flow rate?
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Consider conservation of flow equation and continuity as you derive.

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