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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is wall shear stress?
💡 Hint: Consider the interaction between fluid and a stationary boundary.
Question 2
Easy
Name one assumption when using Navier-Stokes equations.
💡 Hint: Think about conditions under which fluid flow is analyzed.
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 does wall shear stress depend on?
- Density of fluid
- Velocity gradient
- Temperature of fluid
💡 Hint: Think about how the fluid's flow characteristics affect stress.
Question 2
True or False: Vorticity can be zero for all flow types.
- True
- False
💡 Hint: Recall the definition of vorticity in fluid mechanics.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a fluid with dynamic viscosity μ = 0.001 Pa·s flowing between two plates separated by 0.1 m, with a pressure gradient dp/dx = -50 Pa/m, determine the wall shear stress.
💡 Hint: Make sure to correctly apply the relationship between shear stress and viscosity with the velocity gradient.
Question 2
Discuss how the average velocity changes in the transition from laminar to turbulent flow in a channel.
💡 Hint: Think about how eddies in turbulent flow impact the speed of fluid at different depths.
Challenge and get performance evaluation