16.4.1 - Given Data for Laminar Flow
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Practice Questions
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What is shear stress and how is it calculated?
💡 Hint: Think of how forces are distributed over an area.
Define Reynolds number.
💡 Hint: Remember the ratio it represents.
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Interactive Quizzes
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What is the definition of shear stress?
💡 Hint: Think of how force is applied on surfaces.
True or False: The Reynolds number is used to predict both turbulence and viscosity in fluids.
💡 Hint: Recall what Reynolds number measures.
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Challenge Problems
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A cylindrical object of radius 0.25 m is submerged in a fluid with a viscosity of 0.002 Pa.s and moving at 4 m/s. What is the Reynolds number, and how would you classify the flow?
💡 Hint: Use given parameters to substitute into Reynolds number formula.
In a testing scenario, a model car has a frontal area of 0.02 m² and a drag coefficient of 0.3. If tested at a velocity of 25 m/s, how much drag force can we estimate on the full-scale car with a frontal area of 1.2 m²?
💡 Hint: Don’t forget to scale the drag coefficient for practical use.
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