11.3.4 - Wake Formation in Fluid Mechanics
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Practice Questions
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Define shear stress in fluids.
💡 Hint: Consider the concept of force and area.
What does vorticity measure?
💡 Hint: Think about how fluid moves and rotates.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does wall shear stress depend on?
💡 Hint: Think about how flow properties interact at surfaces.
True or False: Vorticity indicates the non-rotational behavior of fluid flow.
💡 Hint: Review the definition of vorticity.
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Challenge Problems
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A fluid's velocity reduces from 10 m/s to 2 m/s over a distance of 5m. Calculate the shear stress on the boundary if the fluid's viscosity is 0.02 Pa.s.
💡 Hint: Use the formula for shear stress with the average gradient.
Determine if a fluid with a Reynolds number of 200,000 is in a laminar, transitional, or turbulent state.
💡 Hint: Reference Reynolds number thresholds for flow states.
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