24.5.2. Dynamic Pressure

Try these first

1. 1.

   What is static pressure?

   Hint

   Think of pressure in a bottle of water.

2. 2.

   Define dynamic pressure.

   Hint

   Consider the effect of wind on your face while running.

3. 3.

   What does dynamic pressure represent in fluid mechanics?

   • Kinetic energy of motion
   • Potential energy
   • Static pressure

   Hint

   Think about what happens to a ball when it rolls.

4. 4.

   Which equation includes both static and dynamic pressure?

   • Bernoulli's Equation
   • Hooke's Law
   • Navier-Stokes Equation

   Hint

   Recall how Bernoulli relates to energy conservation in fluids.

5. 5.

   A fluid with a density of 1200 kg/m³ flows at a speed of 5 m/s through a venturi meter. Calculate the dynamic pressure and stagnation pressure when the static pressure is measured at 200 kPa.

   Hint

   Use the equations: dynamic pressure = 0.5 * ρ * V² and total pressure = static + dynamic.

6. 6.

   Design a simple experiment using an orifice meter to measure fluid through a pipe. Describe the expected outcomes and the role of dynamic pressure.

   Hint

   Think about how to account for energy losses and use empirical data.