17. Incompressible Flow

Try these first

1. 1.

   What is the Mach number threshold for considering a flow as incompressible?

   Hint

   Think about the relationship between flow speed and sound speed.

2. 2.

   Define volumetric flow rate.

   Hint

   Remember how area and velocity relate in fluid flow.

3. 3.

   What Mach number indicates incompressible flow?

   • 0.5
   • 0.3
   • 0.1

   Hint

   Recall the upper threshold for incompressibility.

4. 4.

   Is the assumption of incompressible flow always valid?

   • Yes
   • No

   Hint

   Consider what differentiates compressible and incompressible flows.

5. 5.

   A tank has a circular cross-section with a diameter of 1 meter and water flows in at a rate of 0.15 m³/s. What is the average velocity of water in the tank?

   Hint

   Ensure to use the cross-sectional area formula for a circle in your calculations.

6. 6.

   Given incompressible flow through varying pipe diameters, what steps would you take to analyze changes in flow velocity?

   Hint

   Remember, density cancels out when dealing with incompressible fluids.