Practice Derivation Of Conservation Of Linear Momentum (18.2.3)

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6 sample questions

Question 1.
Define the Reynolds transport theorem.
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Think about how changes in the system relate to flow across its boundaries.
Question 2.
What is the significance of assuming incompressible flow?
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Consider how density impacts fluid dynamics.
3Question 3.
What is the main principle of the conservation of momentum?
- Momentum must always increase
- Momentum is conserved in the absence of external forces
- Momentum can be lost
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Think about systems where forces are applied or absent.
4Question 4.
Is laminar flow characterized by smooth streamlines?
- True
- False
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Visualize how the layers of fluids move in comparison to turbulent flow.
Question 5.
A fluid with a mass flow rate of 2 kg/s enters a pipe at a velocity of 3 m/s. Determine the momentum entering the pipe.
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Use the straightforward formula for momentum.
Question 6.
Derive the equation for momentum conservation in a fixed control volume where pressure and viscous forces are acting on it.
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Think about interrelation of forces involved.

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