Practice Mass Flux Components (4.1.5) - Continuity Equations - Fluid Mechanics

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define mass flux.
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Think of how much mass passes through a specific area.
Question 2.
What is a control volume?
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Consider any bounded region where mass exchanges are observed.
3Question 3.
What does mass flux refer to?
- A. Volume flow rate
- B. Mass per unit time
- C. Mass flow rate per unit area
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Think about what happens to mass when passing through an area.
4Question 4.
True or False: Density is a constant in all fluids.
- True
- False
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Consider different fluids and their conditions.
Question 5.
Given a control volume in a pipe with variable diameter, derive an expression for mass conservation as the diameter changes.
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Apply the principle of mass conservation relating velocities and areas at both ends.
Question 6.
Using the divergence theorem, prove how mass conservation leads to incompressible flow conditions.
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Consider implications of zero divergence and relate it back to the overall flow dynamics.

5 more questions in this section. Enroll free to practise them all.