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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the displacement thickness (δ*) represent?
💡 Hint: Think about the value we use to measure where the boundary ends.
Question 2
Easy
What is the significance of the laminar sub-layer?
💡 Hint: Consider the role of viscosity in fluid layers.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the formula for calculating displacement thickness?
💡 Hint: Think about the fundamental definitions within boundary layer theory.
Question 2
True or False: The laminar sub-layer occurs in both laminar and turbulent flows.
- True
- False
💡 Hint: Consider where viscosity plays a role in fluid motion.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A flow has a uniform velocity of 10 m/s over a flat plate. If the boundary layer thickness at a certain part of the plate is 0.05m, calculate the displacement thickness if the velocity at the edge of the boundary layer is measured to be 9.5 m/s.
💡 Hint: Consider the boundary flow to find the effective thickness.
Question 2
A system has different Reynolds numbers at various sections of the plate—calculate the variation in displacement thickness across these sections and analyze how turbulence might affect fluid behavior.
💡 Hint: Relate the Reynolds number to the displacement thickness across the given plate.
Challenge and get performance evaluation