Viscosity

Definition

Viscosity refers to how resistant a fluid is to flow or deformation. It measures the internal friction within fluids and determines their ability to resist shear forces.

Related terms

Newtonian Fluid: A type of fluid that follows Newton's law of viscosity, where the shear stress is directly proportional to the rate of deformation.

Laminar Flow: Smooth flow pattern where layers of fluid move parallel to each other without mixing or crossing paths.

Shear Stress: The force per unit area that acts parallel to a surface and causes one layer of a fluid to slide past another layer.