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3 cards from this section. Quick, good the night before a test.
What is the primary difference between entrance pressure drop and fully developed flow?
Think about the forces that need to be overcome.
Define Poiseuille's Law in your own words.
How do you relate pressure to flow in a practical system?
What is the formula for entrance pressure drop in laminar flow?
Think about the constants associated with laminar flow.
True or False: In fully developed flow, shear stress is dependent on the radius of the pipe.
Consider how shear stress varies across pipe dimensions.
A circular pipe has a diameter of 0.1 m and carries a fluid with viscosity 0.001 Pa·s. If the pressure drop over a length of 2 m is 50 Pa, calculate the flow rate using Poiseuille’s Law.
Substitute appropriately for pressure, radius, and viscosity to find the flow rate.
Describe the relationship between pipe length and required pressure drop for maintaining a steady flow. How does this relate to practical piping systems?
Think about practical applications in engineering and how they correlate with pressure and length.
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