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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define mass flux.
💡 Hint: Think about mass flow and area.
Question 2
Easy
What does displacement thickness measure?
💡 Hint: Consider where the streamline is relative to the boundary.
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 mass flux?
- Amount of mass per unit volume
- Amount of mass per unit area per unit time
- Amount of mass per unit weight
💡 Hint: Remember the relationship between mass and area.
Question 2
Displacement thickness is defined as:
- True
- False
💡 Hint: Think about the displacement from the wall.
Solve 3 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A flat plate has a boundary layer thickness of 0.02 m, with a uniform velocity U of 5 m/s. Calculate the mass flux if the density of the fluid is 1000 kg/m³.
💡 Hint: Use mass flux equation and consider the area of the elemental strip.
Question 2
Given a velocity distribution within the boundary layer defined as u/U = 3y/2δ - y²/2δ² for y in [0, δ]. If δ = 0.1 m, calculate the displacement thickness.
💡 Hint: Set up the integral correctly and evaluate with respect to y.
Challenge and get performance evaluation