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2 cards from this section. Quick, good the night before a test.
What is viscosity?
Think about how honey flows compared to water.
What factors affect viscosity?
Consider what happens to syrup in heat.
What does viscosity measure?
Think about which term relates to movement.
True or False: Newtonian fluids have a constant viscosity regardless of shear rate.
Remember the definition of Newtonian fluids.
A fluid has a dynamic viscosity of 0.8 Pa.s and flows through a pipe with a velocity gradient of 5 s^-1. Calculate the shear stress.
Use the relation τ = μ (du/dy).
Discuss how varying viscosity with temperature could affect the design of an oil pipeline transporting crude oil.
Think about how temperature changes could alter pipe dimensions and materials used.
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