Practice Energy Balance Approach (2.5) - Introduction to Open Channel Flow and Uniform Flow (Contd.,)

Practice: Energy Balance Approach

Lesson 2.5Introduction to Open Channel Flow and Uniform Flow (Contd.,)

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9 questions

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4 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
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the formula for calculating wave speed for small amplitude waves?
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Recall the derivation involving fluid depth.
Question 2.
Define the Froude number in relation to wave speed.
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Think about how we compare fluid speed and wave speed.
3Question 3.
What is the equation for wave speed in small amplitude waves?
- c = gy
- c = g/y
- c = √(g y)
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Look for the form that includes a square root, indicative of wave speed.
4Question 4.
True or False: The fluid density affects wave speed in small amplitude waves.
- True
- False
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Consider the balance of inertial and hydrostatic forces.
Question 5.
If a wave speed is calculated as 6 m/s in a 3 m deep channel, derive the acceleration due to gravity g using the wave speed formula.
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Ensure to square the wave speed and divide by depth.
Question 6.
A river with a flow speed of 3.5 m/s has waves that cannot move upstream despite their amplitude. Calculate the expected wave speed using depth of 1.5 m.
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Calculate wave speed and compare with the provided river speed.

5 more questions in this section. Enroll free to practise them all.