13.1.3. Challenges in Fluid Mechanics

Try these first

1. 1.

   What is turbulence?

   Hint

   Think about how smoke moves in the air.

2. 2.

   Define lift in fluid mechanics.

   Hint

   Consider how an airplane takes off.

3. 3.

   What is the main reason helicopters experience accidents in the Eastern Himalayas?

   • A. Weather changes
   • B. Mechanical failure
   • C. Pilot error

   Hint

   Consider environmental factors.

4. 4.

   True or False: The Reynolds Transport Theorem is only relevant for water flow.

   • True
   • False

   Hint

   Think about what fluids encompass.

5. 5.

   Given the altitudinal variation in the Eastern Himalayas, describe how pressure changes with altitude could affect helicopter dynamics during flight.

   Hint

   How do atmospheric conditions change with height?

6. 6.

   Design a system that utilizes the concept of virtual fluid balls to predict lift forces on an airfoil in a wind tunnel scenario.

   Hint

   Consider how wind direction might change around the airfoil.