14.2.1 - Finding Dimensional Groups for Volumetric Discharge
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Practice Questions
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List the three basic dimensions in physics.
💡 Hint: Think of the abbreviation MLT.
What does viscosity measure?
💡 Hint: Consider how thick a substance is.
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What does dimensional analysis help ensure?
💡 Hint: Consider what happens when units in an equation don't match.
True or False: The Reynolds number indicates flow type.
💡 Hint: Remember its importance in predicting laminar versus turbulent flow.
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Challenge Problems
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Calculate the Reynolds number for water flowing through a pipe with a diameter of 0.1m at a velocity of 2m/s, given the viscosity of water is 0.001 Pa.s.
💡 Hint: Think about how each variable plays its role in the fluid dynamics.
In designing an open channel flow, if the incoming flow has a Froude number of 3.5, what does it indicate about the flow?
💡 Hint: Think about what happens to flow when gravity forces are dominated.
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