A rotary viscometer is a popular instrument, used to measure dynamic viscosity.The formula for the dynamic viscosity is given by η = Tγ.Dynamic viscosity is defined as the tangential force required to move one horizontal plane of a fluid with respect to another.Whereas, Kinetic Ciscosity is the representation of the inertia along with viscous force. Kinetic Viscosity can be represented as the ration between dynamic viscosity and density.ĭynamic Viscosity is the representation of the viscous force of the fluid. It is represented as the ratio between the sheer strees and sheer strain The symbol of Kinetic Viscosity is v, and the unit of it is m 2/s The Symbol of Dynamic Viscosity is µ, and the unit of it is Ns/m 2 Whereas, Kinetic Viscosity is also know Absolute Viscosity. It can also be expressed as the tangential force per unit area required to move the fluid in a horizontal plane relative to another plane, with a unit value velocity while the molecules of the fluid maintain a distance unitary each on the other.ĭynamic Viscocity can also be known as Absolute Viscosity. Therefore, dynamic viscosity is the force required for fluid to overcome its internal molecular friction so that the fluid can flow. Viscosity acts as an important property of fluid when analyzing fluid behaviour and fluid movement near solid limits.It is a type of tangential force that acts when one horizontal plane moves with another.
The viscosity of a fluid is the measure of the resistance to its progressive deformation by traction or shear.
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