7.5. Approximate Solutions to Navier-Stokes Equations

Try these first

1. 1.

   What do the Navier-Stokes equations describe?

   Hint

   Think about what factors affect fluid motion.

2. 2.

   What is meant by incompressible flow?

   Hint

   Is the density changing?

3. 3.

   What does Navier-Stokes equations primarily deal with?

   • Solid structures
   • Fluid motion
   • Heat transfer

   Hint

   Look for the main subject matter.

4. 4.

   Is the assumption of incompressibility in fluid flow always valid?

   • True
   • False

   Hint

   Consider different types of fluid flow situations.

5. 5.

   Analyze the airflow around a moving vehicle using Navier-Stokes equations. What factors must be considered, and what approximations would simplify your analysis?

   Hint

   Consider the impacts of speed and turbulence on flow behavior.

6. 6.

   Describe how you would apply computational fluid dynamics to model the mixing of two fluids. What parameters would you need to define?

   Hint

   Think about what variables affect how fluids behave when mixed.