19.2.1 - Linear Momentum Equations
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Practice Questions
Test your understanding with targeted questions
Define a stress tensor in the context of fluid mechanics.
💡 Hint: Think of how internal forces are represented.
What is the difference between normal stress and shear stress?
💡 Hint: Consider their orientation with respect to surfaces.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary purpose of a stress tensor in fluid mechanics?
💡 Hint: Think about internal versus external properties.
True or False: Atmospheric pressure must always be considered in fluid flow analyses.
💡 Hint: Consider how pressure affects surface balance.
2 more questions available
Challenge Problems
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Consider a cylindrical tank with fluid flowing in and out. Calculate the net momentum flux if inflows are at 5 kg/s with a velocity of 2 m/s and outflows are at 3 kg/s with 1.5 m/s.
💡 Hint: Use the momentum equation focusing on net inflow and outflow.
Using Reynolds Transport Theorem, derive the momentum flux equation for a fixed control volume and discuss any assumptions.
💡 Hint: Explore the steady state vs. unsteady relationship in your assumptions.
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