Practice Outflow And Inflow Of Mass (4.2.2) - Continuity Equations - Fluid Mechanics

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9 questions

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6 sample questions

Question 1.
Define mass flux.
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Think about how mass flows through an area.
Question 2.
What does the continuity equation represent?
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Consider the inflow and outflow of mass.
3Question 3.
What does the continuity equation imply?
- Mass is conserved
- Mass can be created
- No mass flow occurs
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Think about the fundamental law of physics regarding mass.
4Question 4.
True or False: Incompressible flow implies changing density.
- True
- False
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Consider how density affects fluid motion.
Question 5.
Given a pipe that narrows from a diameter of 2 m to 1 m, how does the velocity change if the incoming mass flow rate is 100 kg/s?
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Use the principle of conservation of mass.
Question 6.
Analyze a scenario of air being compressed in a cylinder while maintaining mass flow rate. How does density and velocity shift in relation to each other?
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Think about how compressing air changes its properties.

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