Practice Definition Of Surface Force (3.3) - Viscous Fluid Flow (Contd.)

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8 questions

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6 sample questions

Question 1.
Define surface force.
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Think about forces acting on the boundary of an object.
Question 2.
What is the difference between surface force and body force?
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Consider gravity versus pressure.
3Question 3.
What represents surface forces in a fluid?
- Gravity
- Pressure
- Velocity
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Think about forces that act on the sides or boundaries.
4Question 4.
True or False: Surface forces affect the entire mass of the fluid element.
- True
- False
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Consider the definitions of body versus surface forces.
Question 5.
Given a fluid element experiencing both surface and body forces, derive the equations of motion using the stress tensor.
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Consider each direction in your setup.
Question 6.
How would surface forces change if the fluid is incompressible versus compressible?
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Think about what happens to density under pressure.

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