6.5.1 - Internal Resistance Force
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Practice Questions
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What is the internal resistance force?
💡 Hint: Think about forces acting internally within a fluid.
What do we use Cauchy's equations for?
💡 Hint: Consider the equations as foundational for other fluid mechanics equations.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What do Cauchy's equations describe in fluid mechanics?
💡 Hint: Think about the flows and how they experience forces.
True or False: The internal resistance force is only relevant in solids.
💡 Hint: Consider fluid flow dynamics.
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Challenge Problems
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A water pipe has a diameter reduction that causes internal pressure to change. Analyze the stress tensor at two points before and after the reduction and how it impacts the fluid flow.
💡 Hint: Consider both shear and normal stress components in the calculations.
Using Cauchy's equations, derive a specific case for a viscous fluid passing through a narrow channel and discuss the implications for flow rate.
💡 Hint: Review how viscosity factors into Cauchy’s equations under flow conditions.
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