Topic 1 - Fluids in Motion

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6 Terms

1
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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

3
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What is shear rate?

Change in velocity

4
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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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