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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define average velocity in fluid dynamics.
💡 Hint: Think about how flow quantities are averaged.
Question 2
Easy
What is wall shear stress?
💡 Hint: Relate it to the velocity gradient at the wall.
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 relationship between average velocity and wall shear stress?
- They are unrelated
- Wall shear stress affects average velocity
- Average velocity affects wall shear stress
💡 Hint: Consider how stress interactions might alter flow.
Question 2
True or False: Vorticity is a measure of fluid's linear motion.
- True
- False
💡 Hint: Think about the concept of rotation vs. linear motion.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a velocity field: u = 5 - (y²/4), where y is the distance from the wall, compute the average velocity across the area from -2 to 2.
💡 Hint: Sketch the area being integrated and identify limits.
Question 2
If the wall shear stress is given as 0.2 N/m², and dynamic viscosity is 0.3 Pa·s, what is the velocity gradient at the wall?
💡 Hint: Understand how stress and viscosity relate to gradients.
Challenge and get performance evaluation