2.3 - Mass Flux Through Elemental Strip
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Practice Questions
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Define mass flux.
💡 Hint: Think about mass flow and area.
What does displacement thickness measure?
💡 Hint: Consider where the streamline is relative to the boundary.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is mass flux?
💡 Hint: Remember the relationship between mass and area.
Displacement thickness is defined as:
💡 Hint: Think about the displacement from the wall.
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Challenge Problems
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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.
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.
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