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3 cards from this section. Quick, good the night before a test.
Define a control volume.
Think about how engineers analyze flow in systems.
What does the conservation of mass state?
Recall what you learned about matter in a closed system.
What does the conservation of mass state in fluid mechanics?
Recall the law of mass balance.
Is the following statement true or false? 'In steady flow, mass entering a system equals mass exiting.'
Think about the balance of water in a bucket.
A tank has water flowing in at a rate of 5 L/min while water flows out at a rate of 3 L/min. Determine the change in the tank's mass flow considering it starts at 100 L. What happens over time?
Set up a mass balance using inflow and outflow rates.
In a moving control volume like a submarine, the pressure changes due to the movement forward through water. Explain how conservation of mass is maintained in this scenario.
Consider how the submarine's speed affects the water pressure and flow rates.
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