22.. Lecture No 11: Bernoulli Equation

Try these first

1. 1.

   What does Bernoulli's equation relate?

   Hint

   Think about energy conservation in fluids.

2. 2.

   List one assumption made in Bernoulli’s equation.

   Hint

   These are characteristics of movement in fluids.

3. 3.

   What does Bernoulli's equation primarily relate?

   • Pressure and mass
   • Height and temperature
   • Pressure
   • velocity
   • and height

   Hint

   Remember the three main variables in fluid dynamics.

4. 4.

   Is Bernoulli's equation applicable to compressible flows?

   • True
   • False

   Hint

   Consider the nature of the assumptions in the equation.

5. 5.

   Calculate the pressure difference when air flows through a pipe that narrows from 10 cm to 5 cm diameter, with initial velocity 3 m/s.

   Hint

   Use the principle of continuity in your calculations.

6. 6.

   Discuss how Bernoulli’s principle can be applied to predict the effects of tornado-like wind speeds on structures.

   Hint

   Consider how air can flow around objects and how pressure varies.