25.1.1. Hydraulic Gradient Lines

Try these first

1. 1.

   What is the hydraulic gradient line in open channel flow?

   Hint

   Think about what the water's surface represents.

2. 2.

   Name a device used to measure hydraulic gradient lines in closed systems.

   Hint

   What tool helps us gauge heads in a pipeline?

3. 3.

   What represents the hydraulic gradient line in open channels?

   • Water surface
   • Pipe wall
   • Air pressure

   Hint

   Think about where the water level is.

4. 4.

   True or False: Mechanical energy losses in a system always raise the hydraulic gradient line.

   Hint

   Consider how energy loss affects lines in flow.

5. 5.

   A horizontal pipe experiences a hydraulic gradient drop of 5 mm over 10 meters. Calculate the corresponding energy loss in terms of hydraulic and energy gradient lines.

   Hint

   Consider the conversion between pressure levels and hydraulic height.

6. 6.

   Design a system that utilizes both pumps and turbines to maintain fluid flow in a closed circuit. Discuss the expected changes to the hydraulic gradient line.

   Hint

   Think of how energy input and extraction shape your system.