4.1.2. Incompressible Flow

Try these first

1. 1.

   Define incompressible flow.

   Hint

   Think about how pressure affects density in liquids.

2. 2.

   What does the mass conservation principle state?

   Hint

   Look for relationships in flow continuity.

3. 3.

   What principle states that mass inflow equals outflow in a fluid system?

   • Pressure Principle
   • Mass Conservation Principle
   • Bernoulli's Principle

   Hint

   Consider the flow of mass in and out.

4. 4.

   True or False: Incompressible flow means the fluid’s density changes with pressure.

   • True
   • False

   Hint

   Think about how liquids behave under pressure.

5. 5.

   A fluid flows through a pipe with an area of 0.02 m² at a velocity of 10 m/s. If the area decreases to 0.01 m², what will be the new velocity?

   Hint

   Apply the principle of conservation of mass.

6. 6.

   A force of 300 N is applied by a water jet on a perpendicular surface at a velocity of 15 m/s. Calculate the flow rate of the jet.

   Hint

   Check units as you convert mass rate into volume flow rate.