What Is the Difference Between Dynamic and Kinematic Viscosity?

Dynamic viscosity, also known as dynamic viscosity, absolute viscosity, or simple viscosity, is defined as the ratio of stress to strain rate. Its value is equal to two plates with an area of 1 square meter and a distance of 1 m. During relative motion, the internal frictional force caused by the interaction of the existing fluids. The unit is N · s / (Newton seconds per meter square), which is Pa · s (Pa second), and its dimension is M / (L · T). ^[1]

A physical quantity that measures the viscosity of a fluid. Also called viscosity coefficient, dynamic viscosity,

Resistance to flow inside the fluid

Viscosity is a measure of the internal friction generated between molecules when a liquid is moved by an external force.

Kinematic viscosity is a measure of the internal friction of a liquid when it flows under the force of gravity. Its value is the ratio of the dynamic viscosity to its density at the same temperature. It is expressed in / s (meters per square meter) in the international unit system. It is customary to use centiseconds (cSt) as the unit. 1 centimeter = 10 ^ (-6) meters ^ (2) / second = 1 millimeter ^ (2) / second.