Practice Practical Considerations (1.11) - Dimensional Analysis and Hydraulic Similitude (Contd.,)

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the Froude number used for?
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Think about flows affected by gravity.
Question 2.
Define Reynolds number.
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Focus on the role of viscosity in fluid flow.
3Question 3.
What does the Froude number represent?
- Viscous forces
- Gravity effects
- Inertial forces
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Consider its formula and relevance.
4Question 4.
True or False: Reynolds number is utilized for flows dominated by gravity.
- True
- False
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Revisit your notes on dimensional analysis.
Question 5.
If a model has a horizontal scale of 1/300 and a vertical scale of 1/75, and a river has a discharge of 200 m³/s, calculate the model discharge.
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Keep track of your ratios and remember to square the height ratio!
Question 6.
Evaluate the Manning's roughness ratio if the model's vertical scale is h_r = 1/60, and the prototype's roughness is n_p = 0.03.
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Ensure proper use of exponents while calculating.

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