5. Lecture – 34

Try these first

1. 1.

   Define gradually varied flow.

   Hint

   Think about how the flow depth changes.

2. 2.

   What are the two types of non-uniform flow?

   Hint

   Recall the terms discussed in class.

3. 3.

   What type of flow has a gradual change in water depth?

   • Uniform Flow
   • Gradually Varied Flow
   • Rapidly Varied Flow

   Hint

   Recall the flow types introduced.

4. 4.

   True or False: Critical depth is always greater than normal depth.

   • True
   • False

   Hint

   Think about the relationships between the two depths explained.

5. 5.

   A river channel has a steep bed slope. How does the flow behave differently from a mild slope if both have the same flow rate?

   Hint

   Consider the definitions of steep and mild slopes.

6. 6.

   Derive and explain the conditions under which critical flow occurs in a rectangular channel.

   Hint

   Think about the relationships you've learned concerning depths.