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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is shear stress?
💡 Hint: Think about how force interacts with surfaces.
Question 2
Easy
What does eddy viscosity represent?
💡 Hint: Consider how turbulence affects fluid movement.
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 main difference in shear stress between laminar and turbulent flow?
- Only viscosity in laminar
- Only turbulence in turbulent
- Both factors in turbulent
💡 Hint: Think about the components contributing to shear.
Question 2
True or False: Eddy viscosity is a fluid property that remains constant regardless of flow conditions.
- True
- False
💡 Hint: Consider how flow dynamics change near surfaces.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A fluid with a density of 1000 kg/m³ flows with a turbulent velocity gradient of 0.05 s⁻¹. Determine the turbulent shear stress using a known eddy viscosity of 0.0005 m²/s.
💡 Hint: Remember to apply density and velocity gradient in the right formula.
Question 2
Explain how Prandtl's mixing length theory aids effectiveness in predicting shear stress in a turbulent flow scenario like a river with varying depths.
💡 Hint: Analyze how mixing length changes with depth.
Challenge and get performance evaluation