1.8 - Differential Form of the Equation
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Practice Questions
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What is the definition of laminar flow?
💡 Hint: Think about how a straight stream flows.
What is the Reynolds number threshold for laminar flow?
💡 Hint: Remember the general numbers given.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What flow regime is associated with a Reynolds number less than 2300?
💡 Hint: Recall the threshold values discussed.
True or False: Turbulent flow is characterized by regular and streamlined motion.
💡 Hint: Think about how turbulent flow looks in real life.
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Challenge Problems
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A fluid with a viscosity of 0.001 Pa·s flows through a 5 cm diameter pipe at a velocity of 1 m/s. Calculate the Reynolds number and determine if the flow is laminar or turbulent.
💡 Hint: Don't forget to convert units if needed.
For flow through a circular pipe, derive the equation of velocity as a function of radius under laminar flow conditions. Consider the assumptions discussed.
💡 Hint: Start from the defined shear stress τ = -μ(du/dr), integrate considering boundary conditions.
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