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4 cards from this section. Quick, good the night before a test.
Define Bernoulli's equation.
Think about the components pressure, elevation, and velocity in a fluid.
What is meant by frictionless flow?
Consider energy losses due to friction.
What does Bernoulli's equation relate?
Remember what happens to energy in fluid dynamics.
Is frictionless flow a realistic scenario?
Think about real-world fluid interactions.
Given a cylindrical water tank with a hole at the bottom, calculate how high the water must be filled for water to flow out at a specific velocity. Assume atmospheric pressure at the free surface.
Consider the elevation head as the difference in height from the hole to the free surface.
A Pitot tube measures a pressure difference corresponding to a fluid velocity of 15 m/s. Calculate the pressure difference and explore how it can vary with airspeed.
Remember to factor in the specific weight of the fluid; for air, use the density at prevailing conditions.
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