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2 cards from this section. Quick, good the night before a test.
Define a control volume in the context of fluid mechanics.
Think about where we isolate flow to study it.
What does the Reynolds transport theorem relate?
Focus on the word 'change' and 'boundaries'.
What is a control volume?
Think about where you're isolating fluid flow.
True or False: Conservation of mass states that mass can be created or destroyed.
Recall fundamental laws of physics.
Consider a control volume where mass inflow rates are given by Q1 = 0.2 m³/s and Q2 = 0.1 m³/s. Calculate the outflow rate when the mass within the control volume changes at a rate of 0.05 m³/s. Discuss the implications in real-world fluid systems.
Set up the mass balance equation.
How would you modify momentum equations if atmospheric pressure varies significantly? Give an example where this might occur.
Consider how pressure affects the force balance.
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