1.1. Basics of Fluid Mechanics – II

Try these first

1. 1.

   What is the continuum assumption in fluid mechanics?

   Hint

   Think about how we can measure fluids as continuous rather than in discrete packets.

2. 2.

   Name one characteristic of steady flow.

   Hint

   How does the fluid behave over time at a fixed point?

3. 3.

   What does the continuum assumption state?

   • Fluids are made of discrete particles.
   • Fluids are treated as infinitely small particles.
   • Fluids cannot be influenced by external forces.

   Hint

   Think about how we measure fluids in everyday situations.

4. 4.

   In which method do we follow individual fluid particles?

   • Eulerian Method
   • Lagrangian Method
   • Continuum Method

   Hint

   Consider whether you are observing the fluid at a fixed location or moving with the fluid.

5. 5.

   Discuss how the flow properties would change if a section of a three-dimensional flow is simplified to two-dimensional. What are the potential impacts on real-world applications such as air navigation for airplanes?

   Hint

   Think about how neglecting one direction could affect the accuracy of measurements.

6. 6.

   Explain a real-life scenario where understanding the difference between steady and unsteady flow is critical. How might engineers design differently based on this understanding?

   Hint

   Consider what could happen if the pressure fluctuates in a pipeline.