3.1.7 - Conservation of Mass
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Practice Questions
Test your understanding with targeted questions
What is a control volume?
💡 Hint: Think about how we simplify complex systems.
Define mass conservation.
💡 Hint: It relates to what happens in a closed system.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary principle of mass conservation in fluid mechanics?
💡 Hint: Think about what happens in a closed system.
True or False: The integral approach in fluid mechanics ignores the interior conditions of control volumes.
💡 Hint: Consider what we know and don’t know about the 'black box'.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A control volume is established around a pipe segment with water flowing in and out. Calculate the mass flow rates if the inlet has a velocity of 3 m/s and an area of 2 m² with water density 1000 kg/m³.
💡 Hint: Use the mass flow rate formula: mass flow rate = density × area × velocity.
Visualize a situation with a fixed control volume and mass entering it at a different speed than mass exiting. How does this affect total mass over time?
💡 Hint: Think about the relationship between the incoming and outgoing mass flux.
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