1.3 - Shear Stress in Turbulent Flow
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Practice Questions
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What is shear stress?
💡 Hint: Think about the forces acting along plane surfaces.
Define eddy viscosity.
💡 Hint: It relates to turbulent characteristics of the fluid.
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Interactive Quizzes
Quick quizzes to reinforce your learning
Which of the following best describes shear stress in turbulent flow?
💡 Hint: Think of the definitions you've learned about flow types.
Eddy viscosity is a fluid property.
💡 Hint: Consider what makes different viscosities function differently.
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Challenge Problems
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A fluid with a dynamic viscosity of 0.001 Pascal seconds flows through a pipe. If the average velocity is 3 m/s and the distance from the wall is 0.1 m, compute the approximate turbulent shear stress if the mixing length is estimated at 0.4y.
💡 Hint: You'll need to establish the gradient from the known velocity and distance.
Design a study method to determine how changes in turbulence affect shear stress in an engineered hydraulic system. Explain the steps involved.
💡 Hint: Think about variables that can be controlled in your design.
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