Viscosity

Viscosity is a property of a fluid that quantifies the resistance force acting on fluids when there is relative motion between fluid parcels. There are different types of viscosity, namely dynamic viscosity (proportionality coefficient between shear stress and shear velocity), and kinematic viscosity (used in fluid dynamics and related to dynamic viscosity).

Links:

  1. Wikipedia — Viscosity

  2. Wikipedia — Fluid parcel

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