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2 cards from this section. Quick, good the night before a test.
What is the principle of conservation of mass?
Think about mass flow rates into and out of a container.
Define the continuity equation.
How do we express inflow and outflow in relation to each other?
What does the Reynolds transport theorem relate?
Consider the fundamental connections in fluid dynamics it covers.
True or False: The continuity equation states that the flow rate into a control volume must equal the flow rate out.
Visualize the fluid entering and leaving a container.
A fluid flows through a pipe with varying diameter. How do you apply the continuity equation to find flow velocities at different points?
Remember to consider how cross-sectional area impacts velocity.
Calculate the force exerted on a wall by a hydraulic jet of diameter 5 cm flowing at 15 m/s if the fluid density is 1000 kg/m³.
You may need to compute the area first for flow calculations.
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