Topic 1 - Fluids in Motion
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Last updated 5:47 PM on 5/28/25
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6 Terms
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Dynamic Viscosity Definition
Property of a fluid that offers resistance to the relative motion of fluid molecules, causing shearing stress
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Shear Stress Definition
Force required to slide one unit area layer of a substance over another
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What is shear rate?
Change in velocity
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Kinematic Viscosity Definition
Ratio of dynamic viscosity to the density of the fluid
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Viscosity varies with… How?
Temperature
When temperature increases, viscosity decreases (but gases are completely opposite)
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Rotating Drum Viscometer
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